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| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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# DASD disk device enablement for IBM Z (s390)
# Before we can compare or map DASD devices we must enable them.
# This operation is only needed during "rear recover".
DISK_MAPPING_HINTS=()
enable_s390_disk() {
local keyword device bus len newname
LogPrint "run chccwdev"
while read len device bus ; do
# this while loop must be outside the pipeline so that variables propagate outside
# (pipelines run in subshells)
LogPrint "Enabling DASD $device with virtual device number $bus"
if chccwdev -e $bus ; then
newname=$(lsdasd $bus | awk "/$bus/ { print \$3}" )
if ! test $newname ; then
LogPrintError "New device with virtual device number $bus not found among online DASDs"
continue
fi
if [ "$newname" != "$device" ]; then
LogPrint "original DASD '$device' changed name to '$newname'"
test "$MIGRATION_MODE" || MIGRATION_MODE='true'
fi
DISK_MAPPING_HINTS+=( "/dev/$device /dev/$newname" )
else
LogPrintError "Failed to enable $bus"
fi
done < <( grep "^dasd_channel " "$LAYOUT_FILE" | while read keyword bus device; do
# add device name length, so that "dasdb" sorts properly before "dasdaa"
# we need to create devices in the same order as the kernel orders them (by minor number)
# - this increases the chance that they will get identical names
echo ${#device} $device $bus
done | sort -k1n -k2 )
}
# May need to look at $OS_VENDOR also as DASD disk layout is distro specific:
case $OS_MASTER_VENDOR in
(SUSE|Fedora|Debian)
# "Fedora" also handles Red Hat
# "Debian" also handles Ubuntu
enable_s390_disk
;;
(*)
LogPrintError "No code for DASD disk device enablement on $OS_MASTER_VENDOR"
;;
esac