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Disk offline

Featured Replies

Noticed a disk was offline. Shut it down, verified all connections and started it back up. Met with Unmountable: wrong or no file system. Nearly every reboot has caused a parity re read lately so that is not good timing.

Also unable to start in maintenance mode. Check the box, hit start and it just reloads the page.

Got it into maintenance mode after a couple reboots. Disk 7 xfs check says

Phase 1 - find and verify superblock... bad primary superblock - bad CRC in superblock !!! attempting to find secondary superblock... .found candidate secondary superblock... verified secondary superblock... would write modified primary superblock Primary superblock would have been modified. Cannot proceed further in no_modify mode. Exiting now.

Clicking fix results in

Phase 1 - find and verify superblock...
bad primary superblock - bad CRC in superblock !!!

attempting to find secondary superblock...
.found candidate secondary superblock...
verified secondary superblock...
writing modified primary superblock
sb realtime bitmap inode value 18446744073709551615 (NULLFSINO) inconsistent with calculated value 129
resetting superblock realtime bitmap inode pointer to 129
sb realtime summary inode value 18446744073709551615 (NULLFSINO) inconsistent with calculated value 130
resetting superblock realtime summary inode pointer to 130
Phase 2 - using internal log
        - zero log...
ERROR: The filesystem has valuable metadata changes in a log which needs to
be replayed.  Mount the filesystem to replay the log, and unmount it before
re-running xfs_repair.  If the filesystem is a snapshot of a mounted
filesystem, you may need to give mount the nouuid option. If you are unable
to mount the filesystem, then use the -L option to destroy the log and
attempt a repair.  Note that destroying the log may cause corruption --
please attempt a mount of the filesystem before doing this.

tower-diagnostics-20260702-1337 2.zip

Edited by jmztaylor

  • Community Expert

You will need to zero the log, it's the only option to try and fix the filesystem, and most often it is not a problem.

  • Author

I got it back up for a few days but the same exact thing happened today.

  • Community Expert

I assume the disk dropped again first? If yes, it would be good to check the diags.

  • Community Expert

disk7 was already disabled in the diags, not even assigned, do you have the diags from when it last dropped, or was it never replaced since the 1st post?

  • Author
24 minutes ago, JorgeB said:

disk7 was already disabled in the diags, not even assigned, do you have the diags from when it last dropped, or was it never replaced since the 1st post?

It wasn't replaced as after repair it was functioning again. Currently if I try to assign the disk to the array it wants to format it and doesn't even emulate the contents.

  • Community Expert

Ahh, OK, in that case you can try to repair the filesystem again, but it may be a good idea to make sure backups are up to date, if it happens once more, I would recommend reformatting just that filesystem and restoring the data.

  • Author
Just now, JorgeB said:

Ahh, OK, in that case you can try to repair the filesystem again, but it may be a good idea to make sure backups are up to date, if it happens once more, I would recommend reformatting just that filesystem and restoring the data.

I did but its still not wanting to mount it without formatting it. Just for ease, I am able to mount it with unassigned plugin and moving everything off of it right now. I will just add it to the array again and format it when done

  • Community Expert

Please post the output from xfs_repair on the emulated disk.

  • Author
2 minutes ago, JorgeB said:

Please post the output from xfs_repair on the emulated disk.

Its not emulated. /mnt/disk7 does not exist. Even though the webui says emulated. I can verify the files on disk7 do not exist in the shares they were assigned.

  • Community Expert

According to diags it exists; it's just not mounting:

Jul 8 10:14:36 Tower emhttpd: shcmd (141): mount -t xfs -o noatime,nodiscard,nouuid /dev/mapper/md7p1 /mnt/disk7

With the array started, post the output from

xfs_repair -v /dev/mapper/md7p1

  • Author
1 minute ago, JorgeB said:

According to diags it exists; it's just not mounting:

Jul 8 10:14:36 Tower emhttpd: shcmd (141): mount -t xfs -o noatime,nodiscard,nouuid /dev/mapper/md7p1 /mnt/disk7

With the array started, post the output from

xfs_repair -v /dev/mapper/md7p1

root@Tower:~# xfs_repair -v /dev/mapper/md7p1

Phase 1 - find and verify superblock...

        - block cache size set to 1503144 entries

Phase 2 - using internal log

        - zero log...

zero_log: head block 2063886 tail block 2063868

ERROR: The filesystem has valuable metadata changes in a log which needs to

be replayed.  Mount the filesystem to replay the log, and unmount it before

re-running xfs_repair.  If the filesystem is a snapshot of a mounted

filesystem, you may need to give mount the nouuid option. If you are unable

to mount the filesystem, then use the -L option to destroy the log and

attempt a repair.  Note that destroying the log may cause corruption --

please attempt a mount of the filesystem before doing this.

  • Author

I have already moved too much stuff around and off of disk7. I will just finish moving everything and add it back and format it. Is this a possible drive issue or just something got messed up?

  • Community Expert

You would need to use -L, for now, it just looks like a filesystem issue.

  • Community Expert

There are a lot of ATA errors logged for ATA6, which is disk 7, likely not a coincidence. Replace both cables for that disk to see if they stop

Jul 14 10:03:53 Tower kernel: ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)

Jul 14 10:03:53 Tower kernel: ata6: EH complete

Jul 14 10:03:53 Tower kernel: ata6.00: exception Emask 0x50 SAct 0x80fe3ffc SErr 0x40f0802 action 0xe frozen

Jul 14 10:03:53 Tower kernel: ata6.00: irq_stat 0x00400000, PHY RDY changed

Jul 14 10:03:53 Tower kernel: ata6: SError: { RecovComm HostInt PHYRdyChg PHYInt CommWake 10B8B DevExch }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:10:68:4f:00/01:00:00:00:00/40 tag 2 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:18:68:50:00/01:00:00:00:00/40 tag 3 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

### [PREVIOUS LINE REPEATED 1 TIMES] ###

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:40:68:5d:00/01:00:00:00:00/40 tag 8 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/48:50:68:5f:00/00:00:00:00:00/40 tag 10 ncq dma 36864 in

Jul 14 10:03:53 Tower kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/b8:58:b0:5f:00/01:00:00:00:00/40 tag 11 ncq dma 225280 in

Jul 14 10:03:53 Tower kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/78:60:68:61:00/00:00:00:00:00/40 tag 12 ncq dma 61440 in

Jul 14 10:03:53 Tower kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:68:e0:61:00/01:00:00:00:00/40 tag 13 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:90:68:54:00/01:00:00:00:00/40 tag 18 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

Jul 14 10:03:53 Tower kernel: ata6.00: status: { DRDY }

Jul 14 10:03:53 Tower kernel: ata6.00: failed command: READ FPDMA QUEUED

Jul 14 10:03:53 Tower kernel: ata6.00: cmd 60/00:98:68:55:00/01:00:00:00:00/40 tag 19 ncq dma 131072 in

Jul 14 10:03:53 Tower kernel: res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x50 (ATA bus error)

  • Author

Replaced both. Went back through the process of repairing filesystem. Said it was corrected. Parity check started on array start. Logs are showing this now

Kul 15 13:05:08 Tower kernel: ata7: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 15 13:05:08 Tower kernel: ata7.00: configured for UDMA/133
Jul 15 13:05:08 Tower kernel: ata7: EH complete
Jul 15 13:05:14 Tower kernel: ata7.00: exception Emask 0x10 SAct 0x1c000 SErr 0x400000 action 0x6 frozen
Jul 15 13:05:14 Tower kernel: ata7.00: irq_stat 0x08000000, interface fatal error
Jul 15 13:05:14 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:14 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:14 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:14 Tower kernel: ata7.00: cmd 61/80:80:a8:d2:ad/00:00:7d:01:00/40 tag 16 ncq dma 65536 out
Jul 15 13:05:14 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:14 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:14 Tower kernel: ata7: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 15 13:05:14 Tower kernel: ata7.00: configured for UDMA/133
Jul 15 13:05:14 Tower kernel: ata7: EH complete
Jul 15 13:05:20 Tower kernel: ata7.00: exception Emask 0x10 SAct 0xfc4 SErr 0x400000 action 0x6 frozen
Jul 15 13:05:20 Tower kernel: ata7.00: irq_stat 0x08000000, interface fatal error
Jul 15 13:05:20 Tower kernel: ata7: SError: { Handshk }
Jul 15 13:05:20 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:20 Tower kernel: ata7.00: cmd 61/40:10:c8:e5:ba/05:00:7d:01:00/40 tag 2 ncq dma 688128 out
Jul 15 13:05:20 Tower kernel:         res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:20 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:20 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:20 Tower kernel: ata7.00: cmd 61/20:30:08:eb:ba/01:00:7d:01:00/40 tag 6 ncq dma 147456 out
Jul 15 13:05:20 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:20 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:20 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:20 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:20 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:20 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:20 Tower kernel: ata7.00: cmd 61/38:58:a8:ad:bb/04:00:7d:01:00/40 tag 11 ncq dma 552960 out
Jul 15 13:05:20 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:20 Tower kernel: ata7: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Jul 15 13:05:20 Tower kernel: ata7.00: configured for UDMA/133
Jul 15 13:05:20 Tower kernel: ata7: EH complete
Jul 15 13:05:25 Tower kernel: ata7: limiting SATA link speed to 3.0 Gbps
Jul 15 13:05:25 Tower kernel: ata7.00: exception Emask 0x10 SAct 0x2020 SErr 0x400000 action 0x6 frozen
Jul 15 13:05:25 Tower kernel: ata7.00: irq_stat 0x08000000, interface fatal error
Jul 15 13:05:25 Tower kernel: ata7: SError: { Handshk }
Jul 15 13:05:25 Tower kernel: ata7.00: failed command: WRITE FPDMA QUEUED
Jul 15 13:05:25 Tower kernel: ata7.00: cmd 61/40:28:50:36:24/05:00:7f:01:00/40 tag 5 ncq dma 688128 out
Jul 15 13:05:25 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:25 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:25 Tower kernel: ata7.00: cmd 61/40:68:90:3b:24/05:00:7f:01:00/40 tag 13 ncq dma 688128 out
Jul 15 13:05:25 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)
Jul 15 13:05:25 Tower kernel: ata7.00: status: { DRDY }
Jul 15 13:05:25 Tower kernel: ata7: hard resetting link
Jul 15 13:05:25 Tower kernel: ata7: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
Jul 15 13:05:25 Tower kernel: ata7.00: configured for UDMA/133
Jul 15 13:05:25 Tower kernel: ata7: EH complete
  • Community Expert

That's a different disk, assuming ports were not swapped, but it also looks like a power/connection issue. Any power splitters in use? It could also be a bad/weak PSU

  • Author
On 7/16/2026 at 1:38 AM, JorgeB said:

That's a different disk, assuming ports were not swapped, but it also looks like a power/connection issue. Any power splitters in use? It could also be a bad/weak PSU

Its a 700w psu that only has about a year of usage on it. I swapped around every drive and cable, pulled the GPU in case that was the issue, and moved the problem drive to a different sata controller. Nothing would make the issue go away. I pulled the drive completely and no longer seeing any errors on any drive. I don't want to lose that much storage but tired of dealing with this issue.

  • Community Expert

It's possible the drive is the problem; sometimes SMART can look OK, and the errors are not logged as a disk problem, and it still is.

  • Author
1 hour ago, JorgeB said:

It's possible the drive is the problem; sometimes SMART can look OK, and the errors are not logged as a disk problem, and it still is.

Yeah thats where I am going with this. If I remember right one of my wd 4tb drives was a warranty claim and is a refurb. So I am just going to try that route and leave it out, as I haven't seen a single issue since pulling it completely

  • Author

Still not quite solved. Pulled that disk and switched to a different PSU. All sata cables were replaced also. And it stayed at ata7 but switched to disk 1. Now its only happening in one loop instead of consistent like before. And according to the logs only happened twice since this boot yesterday.

Jul 19 04:49:02 Tower emhttpd: read SMART /dev/sdf

Jul 19 04:59:27 Tower kernel: ata7.00: irq_stat 0x08000000, interface fatal error

Jul 19 04:59:27 Tower kernel: ata7.00: failed command: READ FPDMA QUEUED

Jul 19 04:59:27 Tower kernel: ata7.00: cmd 60/00:00:d8:ce:58/02:00:5e:00:00/40 tag 0 ncq dma 262144 in

Jul 19 04:59:27 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)

Jul 19 04:59:27 Tower kernel: ata7.00: cmd 60/00:f8:d8:cc:58/02:00:5e:00:00/40 tag 31 ncq dma 262144 in

Jul 19 04:59:27 Tower kernel:         res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x10 (ATA bus error)

Jul 19 04:59:27 Tower kernel: ata7.00: status: { DRDY }

Jul 19 04:59:27 Tower kernel: ata7: hard resetting link

Jul 19 05:12:03 Tower emhttpd: spinning down /dev/sdj

Edited by jmztaylor

  • Community Expert

It could also be an issue with the controller, or just those specific ports.

  • Author
3 hours ago, JorgeB said:

It could also be an issue with the controller, or just those specific ports.

I have another pc with same mb/ram/cpu. I swapped out those 3 and haven't seen a single issue. The other pc doesn't use the sata ports. So hopefully this is the end of this.

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