JDierkse/iSCSI-Scripts
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Add Multipath support

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JDierkse
2023-05-12 11:15:38 +02:00
parent 905361e72f
commit 2519322aac
3 changed files with 159 additions and 39 deletions
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mountVolume
+70 -14
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@@ -3,33 +3,68 @@
IQN=$1
HOST=$2
if [[ -z "${IQN}" ]]; then
if [ -z "${IQN}" ]; then
echo "usage: $0 TargetIQN [Host]"
echo ""
exit
fi
iscsiadm -m discovery -t sendtargets -o update -p ${HOST} &> /dev/null
if [[ ! -z "${HOST}" ]]; then
iscsiadm -m node -T ${IQN} -p ${HOST} -l
if [ ! -z "${HOST}" ]; then
iscsiadm -m discovery -t sendtargets -o update -p ${HOST} &> /dev/null
iscsiadm -m node -T ${IQN} -p ${HOST} -l &> /dev/null
RETURNCODE=$?
else
iscsiadm -m node -T ${IQN} -l
iscsiadm -m node -T ${IQN} -l &> /dev/null
RETURNCODE=$?
fi
sleep 0.5
SESSIONID=$(iscsiadm -m session | grep "${IQN}" | head -n 1 | sed -e 's/.*\[\(.*\)\].*/\1/g')
DEVICE=$(iscsiadm -m session -r ${SESSIONID} -P 3 | grep "Attached scsi disk" | sed -e 's/.*Attached scsi disk \([^\t]*\).*/\/dev\/\1/g')
BLOCKDEVICE=${DEVICE}
MULTIPATH=0
IQNTESTLIST=$(grep -h ${IQN} /sys/class/iscsi_session/*/targetname)
for IQNTEST in ${IQNTESTLIST}; do
if [ "${IQNTEST}" != "${IQN}" ]; then
echo "IQN login failed"
echo ""
MULTIPATHDEVICE=$(multipath -l ${DEVICE} | grep 'mpath' | sed -e 's/^\([a-z]*\) .*/\1/g')
if [[ ! -z "${MULTIPATHDEVICE}" ]]; then
exit
fi
MULTIPATH=$((MULTIPATH + 1))
done
SESSIONFOLDERLIST=$(grep -l ${IQN} /sys/class/iscsi_session/*/targetname | xargs realpath)
declare -A ADDRESSES
declare -A BLOCKDEVICES
for SESSIONFOLDER in ${SESSIONFOLDERLIST}; do
SESSION=$(echo "${SESSIONFOLDER}" | sed 's/.*session\([0-9]*\).*/\1/g')
HOST=$(echo "${SESSIONFOLDER}" | sed 's/.*host\([0-9]*\).*/\1/g')
SCSIADDRESS=$(echo "${SESSIONFOLDER}" | sed 's/\(.*\)\/iscsi_session.*/\1/g' | xargs ls -1 | grep "target${HOST}" | sed 's/target//g')
MAJOR=$(echo "${SCSIADDRESS}" | cut -d ":" -f 2)
MINOR=$(echo "${SCSIADDRESS}" | cut -d ":" -f 3)
FULLSCSIADDRESS=$(echo "${SESSIONFOLDER}" | sed "s/\(.*\)\/iscsi_session.*/\1\/target${SCSIADDRESS}/g" | xargs ls -1 | grep ":")
LUN=$(echo "${FULLSCSIADDRESS}" | cut -d ":" -f 4)
ADDRESS="[${SESSION}]:scsi$HOST:${MAJOR}:${MINOR}:${LUN}"
ADDRESSES+="${ADDRESS} "
BLOCKDEVICE=$(echo "${SESSIONFOLDER}" | sed "s/\(.*\)\/iscsi_session.*/\1\/target${SCSIADDRESS}\/${FULLSCSIADDRESS}\/block/g" | xargs ls -1 | xargs printf "/dev/%s")
BLOCKDEVICES+="${BLOCKDEVICE} "
done
multipath -r
MULTIPATHDEVICE=$(multipath -l ${BLOCKDEVICES[0]} | grep 'mpath' | sed -e 's/^\([a-z]*\) .*/\1/g')
if [ ! -z "${MULTIPATHDEVICE}" ]; then
BLOCKDEVICE="/dev/mapper/${MULTIPATHDEVICE}"
fi
mkdir -p /mnt/iSCSI_${IQN}
MOUNTPOINT="/mnt/iSCSI_${IQN}"
mkdir -p ${MOUNTPOINT}
FILESYSTEM=$(blkid ${BLOCKDEVICE})
if [ -z "${FILESYSTEM}" ]; then
@@ -37,8 +72,29 @@ if [ -z "${FILESYSTEM}" ]; then
echo "mkfs.ext4 ${BLOCKDEVICE}"
echo ""
echo "And mount afterwards using:"
echo "mount ${BLOCKDEVICE} /mnt/iSCSI_${IQN}"
echo "mount ${BLOCKDEVICE} ${MOUNTPOINT}"
else
mount -o discard ${BLOCKDEVICE} /mnt/iSCSI_${IQN}
mount -o discard ${BLOCKDEVICE} ${MOUNTPOINT}
RETURNCODE=$?
if [ "${RETURNCODE}" != "0" ]; then
echo "IQN: ${IQN}"
for ADDRESS in ${ADDRESSES}; do
echo "Address: ${ADDRESS}"
done
echo "Device: ${BLOCKDEVICE}"
echo "Mountpoint: ${MOUNTPOINT}"
echo "Mounting failed"
else
echo "IQN: ${IQN}"
for ADDRESS in ${ADDRESSES}; do
echo "Address: ${ADDRESS}"
done
echo "Device: ${BLOCKDEVICE}"
echo "Mountpoint: ${MOUNTPOINT}"
echo "Mounting succeeded"
fi
fi
echo ""