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