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i recall XFS had some serious corruption issues if a failure happens when not on a UPS (or the UPS fails catastastrophically). Has this been dealt with ?

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Yes, it had but that bug was fixed like 10 years ago. Stop spreading FUD.

Possibly fixed. I've had one incident of an XFS filesystem refuse to mount after it replayed the journal after a power outage. xfs_repair worked but I shouldn't have to piss around in single user mode in 2015.

Kit was a HP DL380p, SmartArray 420i SAS array, CentOS 7 about 3 months ago.

Outage caused by a large UPS explosion that took out 100 machines. No NTFS or ext3/4 trouble at all.

From personal experience I can say that I haven't seen it recently. RHEL 7 went to XFS as their default filesystem so hopefully they've looked into it.

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