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power loss corrupts appliance

Geniux

My XG 17 is running on ESXi 6.5 on a LSI Raid array, the raid policies are iopolicy=cached rdcache=ra wrcache=awb pdcache=on

when the server loses power, all Windows VMs are working properly, just a chkdsk /f to verify the filesystem is intact. just this XG boots in failsafe

show failsafe-reason says unable to start config database

any way to check the filesystem and repair it ?



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  • 0

    If your getting corruption on any raid array you should really check you raid controller, Is it a Battery backed up raid controller? if it is has the battery failed?

     https://community.sophos.com/kb/en-us/125039

    That Article may help with the Sophos XG Vm disk checks though but as i say i run XG on ESXI at a few places but that sort of issue you describe you really ought to check the esxi logs themselves which will point to a RAID controller issue, Ive had dell PERCs with Batteries on fail that then switch between write through and write back because the battery has failed.  But if you have a non battery controller you may have on the wrong caching mode altogether, I cant remember off the top of my head which cache policy doesn't like power loss for this sort of scenario data loss on power loss (that's why Some Controllers have batteries to allow the controller to write out the cache on a power loss)

  • 0 in reply to john_kenny

    There is no BBU as of now. but all Windows VMs are surviving this power loss. what can be done to have XG doing the same.

    while it boots up it always says assuming drive write through, maybe it can be changed and that will help?

  • 0 in reply to Geniux

    If it is using Write through then your using the caching policy that should not lead to much data loss but with servers any sort of caching can lead to data loss if its not shut down correctly hence why you should always use UPS with servers.

    Id look at getting a UPS if you power isnt very reliable as dirty shutdowns can always lead to some sort of data loss / damage.

    Sorry if this isnt what you needed to know but contact sophos support if your XG file system still has issues.

    JK