While I have never heard of GPFS before, the first hit on google for mmcrnsd
took me to GPFS V3.1 Administration and Programming Reference
. Reading over that, particularly regarding the DiskName
section, it leads me to believe that mmcrnsd
is expecting a block-device|partition that is directly under /dev/ and found in /proc/partitions.
My initial inclination is to identify what the dm-#
for the LV is in /proc/partitions and /dev/ and use that instead of vg1/lvol0
(/gpfs/gpfs.disks) and see if that works better for you.
To find the dm-#
to use (for example):
# lvdisplay -m /dev/vg1/lvol0 | grep Block
Block device 253:5
# grep -e 253[[:space:]]*5 /proc/partitions
253 5 67108864 dm-5
# ls -l /dev/dm-5
brw-rw---- 1 root disk 253, 5 2010-01-20 08:07 /dev/dm-5