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reconfiguration RAID

Jayme

Salut,

Je suis de retour chez moi, on pourra lancer le script pour le dépannage des disques?

Merci pour ta réponse
Guy Jayme

jamesbad000

Bonjour.
Bon les scripts sont aussi prêt qu'ils peuvent l'être. En espérant qu'on ne rencontrera pas les même problèmes que j'ai eu sur mon portable.

Pour commencer, il faut coller l'intégralité des 2 scripts ci-dessous dans le terminal, et valider chacun par entrée. Celà va créer les 2 scripts dans ton répertoire perso

cat << 'EOF' > ~/combinaison.sh
#!/bin/bash
opt=$1 # -c combinaison -p permutations
combLen=$2 # longueur combinaison (nombre de valeurs tirées)
# charges param listes de valeurs dans tableau values[]
shift 2
values=("$@") # liste de valeurs à tirer
countValues=${#values[*]}

# initialisation tableau des combinaisons
for (( i=0; i<combLen; i++ )); do
    combinaison[i]=$i
done

# production de toutes les permutations d'une combinaison
# en effectuant des rotations imbriquées de 2,3...jusqu'au nombre d'éléments total
# (0123)
# * (012)3
# * * -> (01)23 (10)23
# * (120)3 
# * * -> (12)03 (21)03
# * (201)3
# * * -> (20)13 (02)13
# (1230) 
# ...

permutation() {
  # $2 = le nombre d'éléments à faire tourner (en partant de la gauche)
  
  local array=(${!1}) # le tableau de valeur 
  local h i j w
  #echo l=$2 ${array[@]}
  
  # pour $2 éléments à faire tourner on fait $2-1 rotations

  for (( h=1; ; )); do
    # sortie du résultat uniquement au niveau le plus bas 
    # (et AVANT éventuelle rotation sur les 2 éléments de gauche)
    if [ $2 -lt 3 ]; then
      #echo x${array[@]}
      for (( i=0; i<combLen; i++)); do
	result[i]=${values[ array[i] ]}
      done
      
      echo ${result[*]}
    else
      permutation array[@] $(($2-1))
    fi
    
    # pour $2 éléments, il y a $2-1 rotations à faire 
    [ $((h++)) = $2 ] && return
    
    # rotation de $2 éléments les plus à gauche du tableau
    # (tous les éléments se décalent de 1 vers la gauche, 
    # sauf le premier qui ira à la place de l'élément le plus
    # a droite du groupe décalé)
    for (( i=0, j=1, w=array[0]; j<$2; i++, j++ )); do
      ((array[i]=array[j]))
    done
    
    ((array[i]=w))
  done
}

# production des combinaisons sans permutation (0,1 et pas 1,0)
# Puis pour chacune, production éventuelle des permutations

combLastIdx=$((combLen-1)) # N° de la dernière colonne de résultat
combLastIdx2=$((combLastIdx-1)) 
deltaIdx=$((countValues-combLen)) 
# echo nbr values $countValues lastIdx $combLastIdx delta $deltaIdx

complete=0

while [ $complete = 0 ]; do
  if [ "$opt" = "-c" ]; then
    # map les résultat numériques avec le tableau de valeur fourni en entrée
    # et sort le résultat
 
    for (( i=0; i<combLen; i++)); do
      result[i]=${values[ combinaison[i] ]}
    done
    echo ${result[*]}
  else
    permutation combinaison[@] $combLen  
  fi
  
  # incremente la dernière colonne de la liste
  if [ $((++combinaison[combLastIdx])) -lt $countValues ]; then continue; fi
  #echo ${combinaison[@]}
  
  # recherche l'index de la colonne la plus proche de la fin, qui peut être incrémentée
  complete=1
  for (( i=combLastIdx2; i>=0; i-- )); do
    ((n=combinaison[i])) # 2
    #echo c$i=$n max $((deltaIdx+i))
    if [ $n -lt $((deltaIdx+i)) ]; then
      # incrément de la colonne trouvé 
      # puis pour toutes les colonnes suivante = valeur colonne précédente + 1
      for (( j=i; j<combLen; j++ )); do
	((combinaison[j] = ++n))
      done
      #echo ${combinaison[@]}
      complete=0
      break
    fi
  done
done
EOF
chmod a+x ~/combinaison.sh

cat << 'EOF' > ~/tryRaid.sh
#!/bin/bash
mdDev=$1 # nom du md à utiliser
nDev=$2 # Nbr de périphériques à placer (<= au nombre de missing de $inlDev : 0 à -1 pour Raid5 0 à -2 pour Raid6)
devChoice=$3 # liste délimité ("") de périphériques à choisirs pour remplir les "missing" 
inlDev=($4) # liste initiale délimité ("") de périphériques à un emplacement fixe ou "missing"
sbList=$5 # listes de superbloc de secours à tester
raidOpt=$6 # options raid supplémentaires

# exemple
#for layout in left-asymmetric left-symmetric; do for ((chunk=32; chunk<=512; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/loop[123]" "missing missing missing" "32768" "--chunk=$chunk --layout=$layout"; done; done

superOk=0
mountOk=0

echo "---------------------------------------------------" | tee -a tryRaid.log
date | tee -a tryRaid.log
echo "---------------------------------------------------" | tee -a tryRaid.log
echo ">- options raid: $raidOpt -<" | tee -a tryRaid.log

shopt -s lastpipe # pour que les "while read" tourne dans le même process...

tryMountExt4() {
    # $1 = le device à tester

    # extraction de la liste des superblocs à essayer (ne marche pas si dev en ro)
    #if [ "$sbList" = "" ]; then
    #    sbList=$(mke2fs -n -t ext4 $1 2>/dev/null | sed  -n -E '/Superbloc/{n; :a; N; /[0-9]+\s/!ba; s/,\s+/ /g; p}')
    #    echo " superbloc recherchés: $sbList"
    #fi

  blkSz=1; # Premier superbloc à 1k au lieu d'un multiple de la taille de bloc
  countFailed=0
  for sbN in 1 $sbList
  do 
    mount -t ext4 -r -o sb=$(($sbN*$blkSz)) $1 /mnt 2>/dev/null; 
 
    if [ $? = 0 ]; then 
      echo " $sbN MOUNT SUCCEED !!"
      echo "${res[*]}: $sbN MOUNT SUCCEED !!" >> tryRaid.log
      ((mountOk++))
      # read -p "Appuyez sur entrée pour continuer"
      umount /mnt;
    else  
      ((countFailed++))
      dumpe2fs -h -o superblock=$sbN -o blocksize=$(($blkSz*1024)) $1 &>/dev/null
      if [ $? = 0 ]; then 
        echo " $sbN FOUND VALID superblock !!"
        echo "${res[*]}: $sbN FOUND VALID superblock !!" >> tryRaid.log
        ((superOk++))
      fi
    fi; 
    
    blkSz=4; # todo Extraire la taille de bloc de mke2fs
    
  done
  echo " $countFailed mount failed."
}

# tentative de compenser disfonctionnement udevadm settle

waitDev() {
    udevadm settle --timeout=30 # attend qu'il n'y ait plus d'évènements à traiter par UDEV
    local i 
    
    # attend l'apparition d'un dev
    if [ "$2" = "+" ]; then 
        while [ ! -e $1 ]; do 
            if ((i++ > 10000));then 
                echo " time out + $1"
                return 1; 
            fi; 
            sleep 0.001; 
        done;
        
    # attend la disparition d'un dev
    else
        while [ -a $1 ]; do 
            if ((i++ > 10000));then 
                echo " time out - $1"
                return 1; 
            fi; 
            sleep 0.001; 
        done;
    fi

}

# sonde un volume

probeDev() {
    # $1 Le périphérique racine
    # $2 La liste des parents
    local name root kname pkname count parents fs vg
    count=0
    parents="$2: $1"
    
    echo -en "\n $parents"
    fs=$(lsblk --list --noheadings -o fstype $1)

    if [ "$fs" = "" ]; then
        echo -n ", fs=none"
    else
        echo -n ", fs=${fs}"
    fi
    
    # attendre que le vg soit actif (tentative pour compenser la défaillance de udevadm settle)
    
    if [ "$fs" = "LVM2_member" ]; then
        while [ "$vg" = "" ]; do 
            sleep 0.001; 
            vg=$(pvs --noheadings -o vg_name $1)
        done;
        
        vg=$(sed -E 's/ *(.*)/\1/' <<< $vg) # sup blancs de droites
        
        if [ "$vg" = "[unknown]" ];then 
            echo "no vg available";
            vg=""
        else
            waitDev "/dev/$vg" +
        fi
        # lvs --noheadings -o lv_name $vg
    fi
    
    lsblk  --path --pairs -o  name,fstype,kname,pkname $1 | while read -a blk
    do 
        name=$(sed -E -e 's/^NAME="(.+)"$/\1/' <<< ${blk[0]})
                    
        if ((count++ < 1 )); then
            root=$(sed -E -e 's/^KNAME="(.+)"$/\1/' <<< ${blk[2]}) # kernel name of dev # $kname 
            continue
        fi
        
        pkname=$(sed -E -e 's/^PKNAME="(.+)"$/\1/' <<< ${blk[3]}) # kernel name of parent dev

        if [ $pkname != $root ];then break; fi # arrêter si pas un enfant du root dev
        # kname=$(sed -E -e 's/^KNAME="(.+)"$/\1/' <<< ${blk[2]}) # kernel name of dev
        
        probeDev $name "$parents"
    done
    
    # explorer le device s'il s'agit d'un noeud terminal

    if [ $count = 1 ]; then
        echo -n " try mounting: "
        tryMountExt4 "${name}"
    fi 

    # arrêt VG
    
    if [ "$vg" != "" ]; then
        vgchange -an -q -q $vg # faut vraiment insister pour faire disparaitre le message
        waitDev /dev/$vg
        sleep 0.1
    fi
}

# crée la grappe raid

createRaid() {
  echo -n "$1 " # liste des composants de la grappe
  waitDev $mdDev
  
  mdadm --create $mdDev --quiet --readonly --assume-clean --run --level raid5 $raidOpt -n  $raidDevices $1 
  # --bitmap=none --data-offset=1024 --chunk=64  --quiet
  if [ $? != 0 ]; then 
    echo ": KO"
    return
  fi
  
  waitDev $mdDev +  

  # test l'existence d'un système de fichier/Container
  probeDev $mdDev
  
  mdadm -S --quiet $mdDev 
  if [ $? != 0 ]; then
    echo " failed to stop $mdDev"
    exit 1
  fi 
}

# -----------
# main
# -----------
echo -- cleanup --

# contrôle que le md n'existe pas
if [ -b $mdDev ]; then
    mdadm -S $mdDev
    if [ $? != 0 ]; then
        echo $mdDev occupé 
        lsblk -o size,name,fstype,label,mountpoint
        exit 1
    fi
fi

echo -e "\n-- try assembling  --\n"

# Extrait les n° d'emplacements des "missing" -> missings[]
raidDevices=${#inlDev[*]} 

for (( i=0, j=0; i<$raidDevices; i++ )); do
    if [ ${inlDev[i]} = "missing" ]; then
        (( missings[j++] = i ))
    fi
done

# tire les permutations de positions de nDev "missing" à remplacer par un dev qui sera tiré...
./combinaison.sh -p $nDev ${missings[*]} | while read -a positions
do

  # tire les combinaisons de nDev périphériques à utiliser pour les missing choisis précédement
  ./combinaison.sh -c $nDev $devChoice | while read -a devices 
  do 
    # liste des devices "fixe" et des "missing" potentiels 
    res=(${inlDev[*]})
    # remplaces les nDev missings aux positions choisies, par les périphériques choisis
    for (( l=0; l<$nDev; l++ )); do
      res[positions[l]]=${devices[l]}
    done  
    
    # créé la configuration et examine le contenu
    createRaid "${res[*]}" 
    if [ $? != 0 ]; then exit 1; fi
  done
done

echo "mountOk $mountOk"
echo "superOk $superOk"
EOF
chmod a+x ~/tryRaid.sh

Et avant de lancer petites vérif

ls -l ~/*.sh
sudo lsblk -o size,name,fstype,label,mountpoint

Jayme

Salut ,

J'ai besoin d'aide pour les arguments a mettre a tryRaid.sh

merci

jamesbad000

Ca je m'en doute. Il n'était pas question de te laisser te débrouiller avec ça. Mais j'attendais d'abord le retour des 2 commandes que j'ai mis à la fin.

Ensuite pour le lancement il faudra coller tout ça dans le terminal

cd ~
do for ((chunk=4; chunk<=512; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk"; done;

PS: si tu veux t'adresser à un professionnel, voit la page de rmy https://forum.ubuntu-fr.org/profile.php?id=20551. Il y a 2 liens dans la signature

Jayme

J'ai lancé le shell, il y a une erreur de syntaxe
bash: erreur de syntaxe près du symbole inattendu « do »

a +

jamesbad000

Effectivement j'ai laissé trainer un "do" au début de la deuxième ligne de commande. Il faut l'enlever

cd ~
for ((chunk=4; chunk<=512; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk"; done;

Jayme

Salut,

Je crois que ça n'a pas fonctionné ;

for ((chunk=4; chunk<=512; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk"; done;
[sudo] Mot de passe de jayme : 
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:17 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4 -<
-- cleanup --
mdadm: stopped /dev/md0

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:35 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=8 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:52 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=16 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:09 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=32 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:27 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=64 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:45 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=128 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:25:02 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=256 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0
---------------------------------------------------
mercredi 4 septembre 2019, 10:25:19 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=512 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdd1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdd1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
mountOk 0
superOk 0

A°

GJ

Jayme

Salut,

Je t'envoie le log :

 cat tryRaid.log
---------------------------------------------------
lundi 2 septembre 2019, 10:12:02 (UTC+0200)
---------------------------------------------------
>- options raid:  -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:17 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:35 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=8 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:23:52 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=16 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:09 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=32 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:27 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=64 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:24:45 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=128 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:25:02 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=256 -<
---------------------------------------------------
mercredi 4 septembre 2019, 10:25:19 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=512 -<

A+
GJ

jamesbad000

Si, le script a bien fonctionné, ce qui n'était pas forcément gagné d'avance. Mais en revanche aucune des combinaison testée n'a donnée de résultat positif.

Comme ça va vite on ne va pas se priver de tenter avec d'autres caractéristiques. Pour commencer avec des chunk jusqu'à 512MB

cd ~
rm tryRaid.log
for ((chunk=1024; chunk<=524288; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk"; done;

ensuite on retente tout la plage de chunk avec des options de layout différentes de la valeur par défaut

cd ~
for layout in left-asymmetric right-asymmetric right-symmetric; do for ((chunk=4; chunk<=524288; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk --layout=$layout"; done; done

Après ça s'il ne trouve rien, je peux encore tenter d'aller voir ce qu'il y a dans les 2 superbloc raid que je viens de découvrir en rebalayant le log de testdisk.
Dès fois que ce soit des résidus de l'ancienne config. Mais c'est un espoir assez mince...

Jayme

Salut ,
J'ai lancé le 1er script il s'est bloqué comme tu vas le voir sur le listing au bout d'une heur j'ai stoppé le process :

for ((chunk=1024; chunk<=524288; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk"; done;
[sudo] Mot de passe de jayme : 
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:41 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=1024 -<
-- cleanup --
mdadm: stopped /dev/md0

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:47 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=2048 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:55 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4096 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:03 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=8192 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:11 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=16384 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:19 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=32768 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:27 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=65536 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdd1 missing mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 /dev/sdb1 missing 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 /dev/sdb1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 /dev/sdc1 missing mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdb1 missing /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdb1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
/dev/sdc1 missing /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
/dev/sdd1 missing /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
/dev/sdd1 missing /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdb1 /dev/sdc1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdb1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdd1 mdadm: /dev/sdd1 is not suitable for this array.
mdadm: create aborted
: KO
missing /dev/sdc1 /dev/sdb1 
 : /dev/md0, fs=none try mounting:  22 mount failed.
missing /dev/sdd1 /dev/sdb1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
missing /dev/sdd1 /dev/sdc1 mdadm: cannot open /dev/sdd1: Device or resource busy
: KO
mountOk 0
superOk 0
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:35 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=131072 -<
-- cleanup --

-- try assembling  --

/dev/sdb1 /dev/sdc1 missing : KO
/dev/sdb1 /dev/sdd1 missing  time out - /dev/md0
mdadm: cannot open /dev/sdb1: Device or resource busy
: KO
/dev/sdc1 /dev/sdd1 missing  time out - /dev/md0
mdadm: cannot open /dev/sdc1: Device or resource busy
: KO
/dev/sdc1 /dev/sdb1 missing  time out - /dev/md0
mdadm: cannot open /dev/sdc1: Device or resource busy
: KO
/dev/sdd1 /dev/sdb1 missing  time out - /dev/md0
mdadm: cannot open /dev/sdd1: Device or resource busy

 : /dev/md0, fs=none

cat tryRaid.log
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:41 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=1024 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:47 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=2048 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:41:55 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4096 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:03 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=8192 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:11 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=16384 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:19 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=32768 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:27 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=65536 -<
---------------------------------------------------
jeudi 5 septembre 2019, 07:42:35 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=131072 -<

J'ai lancé le 2ème script il a bloqué de suite au cleanup:

for layout in left-asymmetric right-asymmetric right-symmetric; do for ((chunk=4; chunk<=524288; chunk*=2)); do sudo ./tryRaid.sh /dev/md0 2 "/dev/sd[bcd]1" "missing missing missing" "32768 98304 163840 229376 294912 819200 884736 1605632 2654208 4096000 7962624 11239424 20480000 23887872 71663616 78675968 102400000 214990848 512000000 550731776 644972544" "--chunk=$chunk --layout=$layout"; done; done
[sudo] Mot de passe de jayme : 
---------------------------------------------------
jeudi 5 septembre 2019, 08:24:53 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4 --layout=left-asymmetric -<
-- cleanup --

Le log :

cat tryRaid.log
---------------------------------------------------
jeudi 5 septembre 2019, 08:24:53 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=4 --layout=left-asymmetric -<
---------------------------------------------------
jeudi 5 septembre 2019, 08:38:22 (UTC+0200)
---------------------------------------------------
>- options raid: --chunk=1024 -<

A+
GJ

jamesbad000

Salut,

Effectivement dès le départ toutes les combinaisons avec sdd1 ont foiré parce qu'il n'était pas dispo et à la fin on a perdu les 2 autres...
On est probablement arrivé à une situation de blocage ou le plus efficace pour s'en sortir est d'abord un reboot (et l'arrêt peut prendre une bonne dizaine de minute).
Ensuite donner le retour de

ls /dev/md*
sudo mdadm -Q /dev/sd[bcd]1

Jayme

Salut,

J'ai effectué un shutdown puis booté : la fin du log :

[    5.399441] [drm] amdgpu kernel modesetting enabled.
[    5.399551] Parsing CRAT table with 1 nodes
[    5.399555] Creating topology SYSFS entries
[    5.399592] Topology: Add APU node [0x0:0x0]
[    5.399592] Finished initializing topology
[    8.456727] r8169 0000:03:00.0 enp3s0: Link is Up - 1Gbps/Full - flow control rx/tx
[    8.456742] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
[   15.585187] random: crng init done
[   15.585190] random: 7 urandom warning(s) missed due to ratelimiting
[   30.405047] rfkill: input handler disabled
[  332.006679] EXT4-fs (md127): unable to read superblock
[  332.006758] EXT4-fs (md127): unable to read superblock
[  332.006802] EXT4-fs (md127): unable to read superblock
[  332.006841] SQUASHFS error: squashfs_read_data failed to read block 0x0
[  332.006844] squashfs: SQUASHFS error: unable to read squashfs_super_block
[  349.790235] EXT4-fs (md126): unable to read superblock
[  349.790326] EXT4-fs (md126): unable to read superblock
[  349.790358] EXT4-fs (md126): unable to read superblock
[  349.790385] SQUASHFS error: squashfs_read_data failed to read block 0x0
[  349.790387] squashfs: SQUASHFS error: unable to read squashfs_super_block

ls /dev/md*
/dev/md126  /dev/md127

sudo mdadm -Q /dev/sd[bcd]1
[sudo] Mot de passe de jayme : 
/dev/sdb1: is not an md array
/dev/sdb1: device 0 in 3 device undetected raid5 /dev/md/SRV1:0.  Use mdadm --examine for more detail.
/dev/sdc1: is not an md array
/dev/sdc1: device 1 in 3 device undetected raid5 /dev/md/SRV1:0.  Use mdadm --examine for more detail.
/dev/sdd1: is not an md array
/dev/sdd1: device 1 in 3 device undetected raid5 /dev/md/SRV1:0_0.  Use mdadm --examine for more detail.

Ce n'est pas réjouissant!

A+

GJ

jamesbad000

Mouai. Revenons déjà à la situation initiale

sudo mdadm -S /dev/md*
mdadm --create /dev/md0  --readonly --assume-clean --level raid5 -n 3 /dev/sd[bcd]1
sudo mdadm -D /dev/md0

Jayme

Salut
1ere commande (j'ai préféré décomposer la commande

sudo mdadm -S /dev/md126
[sudo] Mot de passe de jayme : 
mdadm: stopped /dev/md126

sudo mdadm -S /dev/md127
[sudo] Mot de passe de jayme :

La commande ne me redonne pas la main: Je la stoppe je fais un rm de /dev/md127
2ème commande :

sudo mdadm --create /dev/md0  --readonly --assume-clean --level raid5 -n 3 /dev/sd[bcd]1
mdadm: cannot open /dev/sdb1: Device or resource busy

Les 3 devices sont busy sdb1, sdc1, sdd1

je ne comprends pas
A+
GJ

jamesbad000

Supprimer md127 n'aide en rien. Et en plus maintenant je n'ai même plus de référence de périphérique à donner dans les commandes...
Peut-on refaire

sudo mdadm -Q /dev/sd[bcd]1

Que je vois quel disque est resté lié à un md

Jayme

Voila :

sudo mdadm -Q /dev/sd[bcd]1
[sudo] Mot de passe de jayme : 
/dev/sdb1: is not an md array
/dev/sdb1: device 0 in 3 device undetected raid5 /dev/md/SRV1:0.  Use mdadm --examine for more detail.
/dev/sdc1: is not an md array
/dev/sdc1: device 1 in 3 device undetected raid5 /dev/md/SRV1:0.  Use mdadm --examine for more detail.
/dev/sdd1: is not an md array
/dev/sdd1: device 1 in 3 device inactive raid5 array.  Use mdadm --examine for more detail.

A+
GJ

jamesbad000

Bon je crois qu'il va falloir effacer le superbloc sur les 2 disques, pour débloquer la situation.
Vérif préalable :

sudo dd if=/dev/sdb1 bs=1k skip=4 count=1 |  hd

Jayme

Voila :

sudo dd if=/dev/sdb1 bs=1k skip=4 count=1 |  hd
[sudo] Mot de passe de jayme : 
1+0 enregistrements lus
1+0 enregistrements écrits
00000000  fc 4e 2b a9 01 00 00 00  01 00 00 00 00 00 00 00  |.N+.............|
1024 bytes (1,0 kB, 1,0 KiB) copied, 5,3682e-05 s, 19,1 MB/s00000010  5b d5 ae 2c 33 ad 4c de  2c b2 47 f9 16 51 ea 6b  |[..,3.L.,.G..Q.k|

00000020  53 52 56 31 3a 30 00 00  00 00 00 00 00 00 00 00  |SRV1:0..........|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  4b a0 70 5d 00 00 00 00  05 00 00 00 02 00 00 00  |K.p]............|
00000050  00 00 dc e8 00 00 00 00  00 00 04 00 03 00 00 00  |................|
00000060  08 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000080  00 08 04 00 00 00 00 00  b0 78 dc e8 00 00 00 00  |.........x......|
00000090  08 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000a0  00 00 00 00 00 00 00 00  30 84 62 10 ff 6d b2 0c  |........0.b..m..|
000000b0  99 68 98 a1 b5 40 df de  00 00 08 00 10 00 00 00  |.h...@..........|
000000c0  4b a0 70 5d 00 00 00 00  00 00 00 00 00 00 00 00  |K.p]............|
000000d0  ff ff ff ff ff ff ff ff  cf b4 e6 74 80 00 00 00  |...........t....|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000100  00 00 01 00 ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
00000110  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
*
00000200  56 fa bc 41 74 0c c4 ec  67 ae 8b e3 43 27 91 dd  |V..At...g...C'..|
00000210  1b 28 5a cf 49 d9 5a 53  18 c2 9a 81 f1 1f 4f 9c  |.(Z.I.ZS......O.|
00000220  b3 cb 55 89 79 cf bd 9a  5c 4b 62 3a 4a 04 c3 0b  |..U.y...\Kb:J...|
00000230  bc dd 44 51 0a 54 71 ac  20 88 5c 15 0b 06 b3 4b  |..DQ.Tq. .\....K|
00000240  b5 4c fc 46 ce 22 8c 0e  8c fe a2 4c ce 4b 84 29  |.L.F.".....L.K.)|
00000250  a7 28 eb 76 1f 22 cc 74  de 73 d2 e0 04 e0 9f 2f  |.(.v.".t.s...../|
00000260  fe e5 19 3f ae d7 51 d0  e0 e3 60 e1 ed 15 df 35  |...?..Q...`....5|
00000270  81 fd 0a 47 a7 fb e3 0e  fc 9c fa d0 d4 5c 13 1a  |...G.........\..|
00000280  78 69 8e b3 9d 61 a1 2f  f6 86 0e 47 11 5b 4f 36  |xi...a./...G.[O6|
00000290  5a 36 e3 9d 2a b4 26 9e  eb 05 00 ff fd 9e 5c 09  |Z6..*.&.......\.|
000002a0  bc b3 e2 bf 8c d4 95 2d  99 f7 2d 1d a4 00 0e bb  |.......-..-.....|
000002b0  35 70 3c c8 17 f2 bb 1a  fe 90 c8 13 1d 54 d1 bc  |5p<..........T..|
000002c0  2e 2b 1a ed 8c 8a aa 18  da b7 79 18 15 0b af 88  |.+........y.....|
000002d0  f6 9b e1 61 5a a0 15 e5  58 0d f8 c2 5e dd bf 91  |...aZ...X...^...|
000002e0  79 9f c7 be 35 17 2d c3  cf 90 7a 46 f8 7f d7 67  |y...5.-...zF...g|
000002f0  ba e9 bd 70 f3 b3 37 10  b3 a2 50 13 83 a2 86 c5  |...p..7...P.....|
00000300  20 cd e3 f5 1b ce d8 f9  03 c8 50 2e e0 78 4b a6  | .........P..xK.|
00000310  6c 18 80 4c c8 2c a1 8e  60 91 07 92 a9 24 2f f1  |l..L.,..`....$/.|
00000320  da 51 9b 25 8e 6a dd fb  99 05 e4 a7 65 1c 31 2b  |.Q.%.j......e.1+|
00000330  56 c4 33 7e 89 69 82 b0  3d 55 f5 06 37 e5 d9 79  |V.3~.i..=U..7..y|
00000340  a6 94 49 74 d8 43 be bd  2a 79 d7 c8 ff 5f bb 2a  |..It.C..*y..._.*|
00000350  e0 86 cf fa 9b ca 57 ea  5e b4 3c ed 6f 0a 5d 2b  |......W.^.<.o.]+|
00000360  8a 9d 87 94 a8 ab 45 b1  06 c1 8c 37 66 41 8d d0  |......E....7fA..|
00000370  9c 07 e2 5a 89 e2 45 ff  60 6a a5 7f e4 2f 1d b2  |...Z..E.`j.../..|
00000380  12 95 8c 3a fe 9c 34 95  9a 28 3c 42 70 81 fe 7a  |...:..4..(<Bp..z|
00000390  ca 71 c8 9a f0 c0 24 e7  0a 7b d6 ce bf ff 6b 6b  |.q....$..{....kk|
000003a0  df 79 26 c8 80 25 4b 97  20 96 b8 dc 57 a6 6c 16  |.y&..%K. ...W.l.|
000003b0  43 a5 a3 ef e4 e8 74 3a  98 d8 a6 b1 72 5a eb e5  |C.....t:....rZ..|
000003c0  e7 57 e6 20 da b4 88 6a  7d b5 97 f1 1a 88 06 11  |.W. ...j}.......|
000003d0  82 0f 5d f4 ae fe 0a 86  c8 41 bf ed 9d 98 b4 54  |..]......A.....T|
000003e0  15 7d bf bd 7b 8d 1e 24  be c2 a3 11 ac 1e d6 1e  |.}..{..$........|
000003f0  7f 2c 91 94 40 c5 de 6f  9d 79 e2 c3 ba 82 f6 35  |.,..@..o.y.....5|
00000400

A+

GJ

jamesbad000

Ok c'est bien là. On va même effacer les 3. Comme ça ce sera plus simple

sudo dd if=/dev/zero of=/dev/sdb1 bs=1k seek=4 count=1
sudo dd if=/dev/zero of=/dev/sdc1 bs=1k seek=4 count=1
sudo dd if=/dev/zero of=/dev/sdd1 bs=1k seek=4 count=1

et derrière il va falloir à nouveau rebooter
Ensuite :

mdadm --create /dev/md0  --readonly --run --assume-clean --level raid5 -n 3 /dev/sd[bcd]1
sudo mdadm -D /dev/md0

Jayme

Voila :

sudo dd if=/dev/zero of=/dev/sdb1 bs=1k seek=4 count=1
1+0 enregistrements lus
1+0 enregistrements écrits
1024 bytes (1,0 kB, 1,0 KiB) copied, 0,000279924 s, 3,7 MB/s
jayme@SRV1:~$ sudo dd if=/dev/zero of=/dev/sdc1 bs=1k seek=4 count=1
1+0 enregistrements lus
1+0 enregistrements écrits
1024 bytes (1,0 kB, 1,0 KiB) copied, 0,000259782 s, 3,9 MB/s
jayme@SRV1:~$ sudo dd if=/dev/zero of=/dev/sdd1 bs=1k seek=4 count=1
1+0 enregistrements lus
1+0 enregistrements écrits
1024 bytes (1,0 kB, 1,0 KiB) copied, 0,0013437 s, 762 kB/s

reboot, puis

sudo mdadm --create /dev/md0  --readonly --run --assume-clean --level raid5 -n 3 /dev/sd[bcd]1
[sudo] Mot de passe de jayme : 
mdadm: partition table exists on /dev/sdb1
mdadm: partition table exists on /dev/sdb1 but will be lost or
       meaningless after creating array
mdadm: partition table exists on /dev/sdc1
mdadm: partition table exists on /dev/sdc1 but will be lost or
       meaningless after creating array
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md0 started.
jayme@SRV1:~$ sudo mdadm -D /dev/md0
*/dev/md0:
           Version : 1.2
     Creation Time : Sat Sep  7 21:46:03 2019
        Raid Level : raid5
        Array Size : 3906762752 (3725.78 GiB 4000.53 GB)
     Used Dev Size : 1953381376 (1862.89 GiB 2000.26 GB)
      Raid Devices : 3
     Total Devices : 3
       Persistence : Superblock is persistent

     Intent Bitmap : Internal

       Update Time : Sat Sep  7 21:46:03 2019
             State : clean 
    Active Devices : 3
   Working Devices : 3
    Failed Devices : 0
     Spare Devices : 0

            Layout : left-symmetric
        Chunk Size : 512K

Consistency Policy : bitmap

              Name : SRV1:0  (local to host SRV1)
              UUID : df654ac2:aaf41e93:8427a9dd:dd71ca9a
            Events : 0

    Number   Major   Minor   RaidDevice State
       0       8       17        0      active sync   /dev/sdb1
       1       8       33        1      active sync   /dev/sdc1
       2       8       49        2      active sync   /dev/sdd1

A+

GJ

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