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Forum Discussion
Detected increasing command timeouts errors
1. Have a ReadyNAS 316 that I have been running for many years without any odd ball issues. Recently I swapped out a 4TB Seagate HDD for a 12TB Seagate HDD. After a few weeks, it started generating "...
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Do the other drives get the same Command timeout errors? Are all drives have the same make/model family?
It would be best if you can run a disk test using the Boot menu on the NAS or by plugging in the 12TB drive on your PC and run Seatools or other available disk utility like Acronis.
The 12TB drive might have been replaced but unfortunately it's not always a Brand new replacement, most would be a refurbished/re certified units. It would be better to make sure that the drive does not have any errors.
If the issue still persist, it would be good to turn to check to turn off the NAS, remove the drives and label them accordingly and insert a spare disk on the slot where the 12TB is located. It will initiate a setup using the spare disk, once done we'll be able to check if it will give the same error and the NAS might need a hardware check.
HTH
Regards
Marc_V wrote:
If the issue still persist, it would be good to turn to check to turn off the NAS, remove the drives and label them accordingly and insert a spare disk on the slot where the 12TB is located. It will initiate a setup using the spare disk, once done we'll be able to check if it will give the same error and the NAS might need a hardware check.
A related test is to turn off the NAS, and switch the slots of the 8 TB drive and the 12 TB drive. Then reboot and see if the problem moves.
It would also be useful to download the full log zip file, and look for disk / btrfs errors in system.log and kernel.log. It is possible that errors with other disks might be triggering the command timeouts. Also look in disk_info.log, as there could be other SMART errors that aren't generating alerts.
Marc_V wrote:
... or by plugging in the 12TB drive on your PC and run Seatools ...
I'd suggest Seatools for this (connecting with either USB or SATA). If there is an issue with the RMA'd disk, it will be simpler to exchange it again if you have a Seatools failure code.
FWIW, Acronis Drive Monitor won't actually test the disk. It will look at the SMART stats (which can be handy), but that's all it does.
Mark_V, A new 12TB drive gave me the original "increasing command timeouts errors". All other drives have been running well for some time, no errors from the system or SMART error counts. Then on RMA 12TB HDD that I received and inserted (returning the original 12TB drive) ...after a few weeks....the RMA replacement 12TB drive started reporting the "increasing command timeouts errors" just like the original NEW HDD. I will downloand the full logds tomorrow and review. To me at first pass it seems like a 12TB drive NAS OS cache flush handling issue.
Checked the system.log and kernel.log for any btrfs errors. Nil reported. System log make no references. Kernel log has btrfs log entries, but none reporting with "error".
ReadyNAS 316.
Firmware level 6.10.2
All drives are Seagate IronWolf NAS.
Populated as follows.
Drive / Channel 1: 4TB ST4000DM000
Drive / Channel 2: 12TB ST12000VN0008
Drive / Channel 3: 4TB ST4000DM000
Drive / Channel 4: 8TB ST8000VN00022
Drive / Channel 5: 8TB ST8000VN00022
Drive / Channel 6: 8TB ST8000VN00022
It is only the 12TB drive (on both the original and on the RMA repacement) that is generating the "Detected increasing command timeouts errors".
In full..."Detected increasing command timeouts errors: [14] on disk 2 (Internal) [ST12000VN0008-2JH101, ZHZ1ENC9] 10 times in the past 30 days. This condition often indicates an impending failure. Be prepared to replace this disk to maintain data redundancy."
Thank you for the update.
I don't think it would be a power supply issue where the needed power is not met thus getting Command timeouts on the 12TB. But it just might be a possible cause.
Can you please send in the logs using a download link sent to me via PM.
If possible, kindly try our suggestion of doing a spare disk or switching the disk bays by turning off the NAS first just like what StephenB mentioned. This is to check if the Command timeouts follows the 12TB so we can at least confirm.
HTH
Regards
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