This doesn't sound like normal behaviour. It shouldn't matter which filesystem your tiebreaker disks belong to. I think the failure was caused by something else, but am not able to guess from the little information you posted.. The mmfs.log will probably tell you the reason.
-jf ons. 3. mai 2017 kl. 19.08 skrev Shaun Anderson <[email protected]>: > We noticed some odd behavior recently. I have a customer with a small > Scale (with Archive on top) configuration that we recently updated to a > dual node configuration. We are using CES and setup a very small 3 > nsd shared-root filesystem(gpfssr). We also set up tiebreaker disks and > figured it would be ok to use the gpfssr NSDs for this purpose. > > > When we tried to perform some basic failover testing, both nodes came > down. It appears from the logs that when we initiated the node failure > (via mmshutdown command...not great, I know) it unmounts and remounts the > shared-root filesystem. When it did this, the cluster lost access to the > tiebreaker disks, figured it had lost quorum and the other node came down > as well. > > > We got around this by changing the tiebreaker disks to our other normal > gpfs filesystem. After that failover worked as expected. This is > documented nowhere as far as I could find​. I wanted to know if anybody > else had experienced this and if this is expected behavior. All is well > now and operating as we want so I don't think we'll pursue a support > request. > > > Regards, > > *SHAUN ANDERSON* > STORAGE ARCHITECT > O 208.577.2112 > M 214.263.7014 > > > NOTICE: This email message and any attachments here to may contain > confidential > information. Any unauthorized review, use, disclosure, or distribution of > such > information is prohibited. If you are not the intended recipient, please > contact > the sender by reply email and destroy the original message and all copies > of it. > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss >
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