diff options
Diffstat (limited to 'src/core/libs/lib-blockdevices-filesystems.sh')
| -rw-r--r-- | src/core/libs/lib-blockdevices-filesystems.sh | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/core/libs/lib-blockdevices-filesystems.sh b/src/core/libs/lib-blockdevices-filesystems.sh index 577fd81..3511557 100644 --- a/src/core/libs/lib-blockdevices-filesystems.sh +++ b/src/core/libs/lib-blockdevices-filesystems.sh @@ -773,3 +773,46 @@ get_blockdevice_size () [ $unit = GiB ] && BLOCKDEVICE_SIZE=$((bytes/2**30)) [ $unit = GB ] && BLOCKDEVICE_SIZE=$((bytes/10**9)) } + + +# $1 blockdevice (ex: /dev/md0 or /dev/sda1) +# return true when blockdevice is an md raid, otherwise return a unset value +mdraid_is-raid () +{ + local israid + if [ -z $1 ]; then + # Don't call mdadm on empty blockdevice parameter! + israid="" + elif [ "$(mdadm --query $1 | cut -d':' -f2)" == " is not an md array" ]; then + israid="" + else + israid=true + fi + echo $israid +} + +# $1 md raid blockdevice (ex: /dev/md0) +# return the array member device which is slave 0 in the given array +# ex: /dev/md0 is an array with /dev/sda1, /dev/sdb1, +# so we would return /dev/sda1 as slave 0 +# +# This procedure is used to determine the grub value for root, ex: (hd0,0) +mdraid_slave0 () +{ + echo "/dev/"$(ls -ldgGQ /sys/class/block/$(basename $1)/md/rd0 | cut -d'"' -f4 | cut -d'-' -f2) +} + +# $1 md raid blockdevice (ex: /dev/md0) +# return a list of array members from given md array +# ex: /dev/md0 has slaves: "/dev/sda1 /dev/sdb2 /dev/sdc2" +mdraid_all-slaves () +{ + local slave= + local slaves= + for slave in $(ls /sys/class/block/$(basename $1)/slaves/); do + slaves=$slaves"/dev/"$slave" " + done + echo $slaves +} + + |