Hi all,

every few days i'm noticing that shares on my cache disk just disappears from the gui. Cache disk seems to be present without problems.

Of course this is destroying all my dockers until a complete reboot.

One thing to notice, and i think that is the main problem, is that my cache disk is a ssd on external usb (i cannot opt for something else sadly , my build is a qnap 451+ with 4 disks, all on the array)

Something else i can try other than remove the cache disk and use my dockers on one of my array's disk ? This is something i wanna avoid to let it spin down of course.

Attached are my diagnostics

diagnostics-20221201-1051.zip

Diags are just after rebooting, but likely the cache device is dropping offline because of being USB, post new diags after it happens again.

Thanks, will do as soon as it happens.

Sadly just happened once more, what can i do to alleviate this usb disconnect problem ? 

 

Dec  4 10:48:43 SAGITTARIUS kernel: usb 1-3: USB disconnect, device number 6
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 0, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: sd 2:0:0:0: [sdc] Synchronizing SCSI cache
Dec  4 10:48:43 SAGITTARIUS kernel: sd 2:0:0:0: [sdc] Synchronize Cache(10) failed: Result: hostbyte=0x01 driverbyte=DRIVER_OK
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 1, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 2, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 3, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 4, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 5, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 6, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 7, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 8, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:43 SAGITTARIUS kernel: BTRFS error (device sdc1): bdev /dev/sdc1 errs: wr 9, rd 1, flush 0, corrupt 0, gen 0
Dec  4 10:48:45 SAGITTARIUS kernel: BTRFS warning (device sdc1): direct IO failed ino 2748 rw 1,34817 sector 0x5759be0 len 4096 err no 10
Dec  4 10:48:45 SAGITTARIUS kernel: BTRFS warning (device sdc1): direct IO failed ino 2748 rw 1,34817 sector 0x5759d10 len 4096 err no 10
Dec  4 10:48:45 SAGITTARIUS kernel: BTRFS warning (device sdc1): direct IO failed ino 2748 rw 1,34817 sector 0x5759d28 len 4096 err no 10
Dec  4 10:48:45 SAGITTARIUS kernel: BTRFS warning (device sdc1): direct IO failed ino 2748 rw 1,34817 sector 0x6fb48f0 len 8192 err no 10

 

 

sagittarius-diagnostics-20221204-1123.zip

Edited December 4, 20223 yr by zirconi

If USB is the only option try a different USB port/controller is available, or using a different USB bridge, some are better than others.

Tried the usb 3.0 port, disconnected after only 1 day. I'm sadly moving all my cache files to my array and remove the cache disk