November 26, 20205 yr I don't know what to blaim yet. I have to get the cache SSD out of the server and try to find out what's wrong with it. As I mentioned it happened before and the SSD looked fine at the time. Any help is really appreciated. tower-diagnostics-20201126-1246.zip
November 26, 20205 yr Community Expert It's filesystem corruption, can't see an apparent reason, and if it's not the first time it might indicate a hardware issue, good idea to run memtest.
November 26, 20205 yr Author 50 minutes ago, JorgeB said: It's filesystem corruption, can't see an apparent reason, and if it's not the first time it might indicate a hardware issue, good idea to run memtest. Thank you for the quick reply. If I remember corectly the Unraid USB has a built in memtest? Or should I prepare a memtestx86 for this?
November 26, 20205 yr Community Expert You can use the one built in, it doesn't work with UEFI boot though, only legacy/CSM.
November 26, 20205 yr Community Expert If you want a UEFI version of memtest you need to download it off the memtest site and use it to create a bootable USB drive.
November 26, 20205 yr Author Thank you for the advice again. Indeed I have a bad stick of RAM and you pointed me in the right direction. Should I try to recover the cache drive somehow or is better to recover what I can and format it? Any BTRFS commands I should try? I have a few unassigned HDDs using BTRFS. Should I be worried about that data too?
November 27, 20205 yr Community Expert Best bet is to re-format, there are some recovery options here if you can't just copy the data. 10 hours ago, andreidelait said: I have a few unassigned HDDs using BTRFS. Should I be worried about that data too? Btrfs is very susceptible to bad RAM, but any issue is also usually pretty evident, you can run a file system check (without repair enable) to make sure all is well.
November 27, 20205 yr Author I got burned two times with this, so I guess I'll convert everything to XFS as soon as I can. For some reason I tought I can only use BTRFS for cache drive.
November 27, 20205 yr Community Expert 36 minutes ago, andreidelait said: For some reason I tought I can only use BTRFS for cache drive. That is only true if you have more than one drive in the cache (pool). With a single drive it can be any supported file system.
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