Hi All,
We are testing out some flash storage. I created a couple of NSDs successfully
(?):
root@nec:~/gpfs# mmlsnsd -F
File system Disk name NSD servers
---------------------------------------------------------------------------
(free disk) nsd1 nec
(free disk) nsd2 nec
root@nec:~/gpfs#
So I tried to create a filesystem:
root@nec:~/gpfs# mmcrfs gpfs0 -F ~/gpfs/flash.stanza -A yes -B 1M -j scatter -k
all -m 1 -M 3 -Q no -r 1 -R 3 -T /gpfs0
GPFS: 6027-441 Unable to open disk 'nsd2' on node nec.
GPFS: 6027-441 Unable to open disk 'nsd1' on node nec.
No such device
No such device
GPFS: 6027-538 Error accessing disks.
mmcrfs: 6027-1200 tscrfs failed. Cannot create gpfs0
mmcrfs: 6027-1639 Command failed. Examine previous error messages to determine
cause.
root@nec:~/gpfs#
Does this output from readdescraw look normal?
root@nec:~/gpfs# mmfsadm test readdescraw /dev/zd16
NSD descriptor in sector 64 of /dev/zd16
NSDid: 0A0023D258C1C02C format version: 1403 Label:
Paxos sector: -1931478434 number of sectors: 8192 isPdisk: 0
Comment: NSD descriptor for <unknown> Thu Mar 9 14:50:52 2017
No Disk descriptor in sector 96 of /dev/zd16
No FS descriptor in sector 2048 of /dev/zd16
root@nec:~/gpfs# mmfsadm test readdescraw /dev/zd32
NSD descriptor in sector 64 of /dev/zd32
NSDid: 0A0023D258C1C02B format version: 1403 Label:
Paxos sector: -1880562609 number of sectors: 8192 isPdisk: 0
Comment: NSD descriptor for <unknown> Thu Mar 9 14:50:51 2017
No Disk descriptor in sector 96 of /dev/zd32
No FS descriptor in sector 2048 of /dev/zd32
root@nec:~/gpfs#
Thanks in advance, all…
Kevin
—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
kevin.buterba...@vanderbilt.edu<mailto:kevin.buterba...@vanderbilt.edu> -
(615)875-9633
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