cache ssd seen but unmountable


iarp

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[   33.024701] sd 16:0:0:0: [sde] 488397168 512-byte logical blocks: (250 GB/233 GiB)
[   33.025587] sd 16:0:0:0: [sde] Write Protect is off
[   33.025590] sd 16:0:0:0: [sde] Mode Sense: 00 38 00 00
[   33.026552] sd 16:0:0:0: [sde] Asking for cache data failed
[   33.026561] sd 16:0:0:0: [sde] Assuming drive cache: write through
[   33.051175]  sde: sde1
[   33.054211] sd 16:0:0:0: [sde] Attached SCSI disk
[   33.186906] BTRFS: device fsid 3346e7ab-0a8a-4c11-bb04-9ccbcdc4e414 devid 1 transid 14150489 /dev/sde1
[   33.256468] BTRFS info (device sde1): using free space tree
[   33.256471] BTRFS info (device sde1): has skinny extents
[   33.350488] BTRFS info (device sde1): start tree-log replay
[   33.402424] BTRFS info (device sde1): leaf 5668864 gen 14150490 total ptrs 179 free space 2321 owner 2
[   33.402799] BTRFS error (device sde1): unable to find ref byte nr 51566100480 parent 0 root 5  owner 12453882 offset 2129920
[   33.403016] BTRFS: error (device sde1) in __btrfs_free_extent:3077: errno=-2 No such entry
[   33.403018] BTRFS: error (device sde1) in btrfs_run_delayed_refs:2188: errno=-2 No such entry
[   33.403022] BTRFS: error (device sde1) in btrfs_replay_log:2281: errno=-2 No such entry (Failed to recover log tree)
[   33.485774] BTRFS error (device sde1): open_ctree failed
[   52.162186] BTRFS info (device sde1): using free space tree
[   52.162191] BTRFS info (device sde1): has skinny extents
[   52.260330] BTRFS info (device sde1): start tree-log replay
[   52.310696] BTRFS info (device sde1): leaf 5668864 gen 14150490 total ptrs 179 free space 2321 owner 2
[   52.311070] BTRFS error (device sde1): unable to find ref byte nr 51566100480 parent 0 root 5  owner 12453882 offset 2129920
[   52.311321] BTRFS: error (device sde1) in __btrfs_free_extent:3077: errno=-2 No such entry
[   52.311323] BTRFS: error (device sde1) in btrfs_run_delayed_refs:2188: errno=-2 No such entry
[   52.311328] BTRFS: error (device sde1) in btrfs_replay_log:2281: errno=-2 No such entry (Failed to recover log tree)
[   52.401769] BTRFS error (device sde1): open_ctree failed
[   74.423093] BTRFS info (device sde1): using free space tree
[   74.423095] BTRFS info (device sde1): has skinny extents
[   74.520379] BTRFS info (device sde1): start tree-log replay
[   74.570325] BTRFS info (device sde1): leaf 5668864 gen 14150490 total ptrs 179 free space 2321 owner 2
[   74.570705] BTRFS error (device sde1): unable to find ref byte nr 51566100480 parent 0 root 5  owner 12453882 offset 2129920
[   74.570924] BTRFS: error (device sde1) in __btrfs_free_extent:3077: errno=-2 No such entry
[   74.570926] BTRFS: error (device sde1) in btrfs_run_delayed_refs:2188: errno=-2 No such entry
[   74.570932] BTRFS: error (device sde1) in btrfs_replay_log:2281: errno=-2 No such entry (Failed to recover log tree)
[   74.655031] BTRFS error (device sde1): open_ctree failed

 

I've taken it out of the unraid box and its connected to my main linux machine to see if i could do anything here but all i get is "Error mounting /dev/sde1 at /media...: mount(2): system call failed: No such file or directory"

 

How to proceed? Is there anything that can be done?

 

While googling some things I saw another unraid post mention running the command "btrfs fi show /dev/sde1" which outputs the following, it still shows used space.

Label: none  uuid: 3346e7ab-0a8a-4c11-bb04-9ccbcdc4e414
	Total devices 1 FS bytes used 87.25GiB
	devid    1 size 232.89GiB used 126.02GiB path /dev/sde1

 

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The 3rd command listed under the read-only section "ro,notreelog,nologreplay" worked and I'm copying as we speak.

 

It's unclear to me if this is a failing drive or something else happened and i'm safe to just reformat and put it back into service.

 

I grabbed diagnostics before shutting it down the first time, according to my emailed errors this happened at exactly 9AM my time.

 

Edited by iarp
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I reconnected the drive to the system and ran memtest which found no errors. Upon restarting into unraid the cache drive is randomly back. Should I trust this is ok?

 

Edit: I didn't trust it and attempted to rm the appdata folder because i had already restored that using a backup directly to the array and i didn't want things to get mixed. I'm hit with the following message on hundreds of files

 

rm: cannot remove 'appdata/jellyfin/dlna/system/Sony Bravia (2014).xml': Read-only file system
rm: cannot remove 'appdata/jellyfin/dlna/system/Sony PlayStation 3.xml': Read-only file system
rm: cannot remove 'appdata/jellyfin/dlna/system/Sony PlayStation 4.xml': Read-only file system
rm: cannot remove 'appdata/jellyfin/dlna/system/WDTV Live.xml': Read-only file system
rm: cannot remove 'appdata/jellyfin/dlna/system/Xbox One.xml': Read-only file system
rm: cannot remove 'appdata/jellyfin/dlna/user': Read-only file system

But other files on the system can be deleted without issue.

 

Edit 2: I'm now hunting for a way to somehow verify every bit of an ssd to see if it catches some kind of error? I'm not sure if thats possible.

Edited by iarp
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