Hi All
A customer of mine have a big issue with their backup since a couple of Days ago and we Believe it's due to an upgrade of ESXi hosts to 5.5.0,3029944 but not 100% sure.
All ESXi hosts are upgrdaed 10 Days agon and they uses NetBackup (7.6.0.3) to do backup of the virtual servers via SAN and NBD.
During the backupwindow we see that some servers (not the same all the time) have done a robbot, looking in vSphere client we see that a disk consolidation has been issued directly after the snapshot is removed see attached image
In Windows Event Viewer on the affected servers we get:
ID 6008 - The previous system shutdown at 21:04:45 on 2015-09-24 was unexpected.
and:
ID 41 - The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Some servers have rebooted two or Three times during the last 10 Days while most servers are unaffected.
We have checked that affected servers are not on the same ESXi host, not the same Datastore, not the same physical storage, not on the same OS (2008R2 and 2012R2)
We have started a case against VMware but I'll try this way as well. i don't have the VMware log at this time but have requested it from VMware admin.
This setup have worked fine during the last 6 months and thats why I suspect the ESXi upgrade....
Anyone seen this?
