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Command Timeouts The Chcken or The Egg ReadyNas 516 12TB IronWolf Pros
System Disk 1 has 1 Command Timeouts Disk 2 has 3 Command Timeouts Logs 2021-02-23 16:11:08: raidard[18963]: segfault at 7ffda792b000 ip 0000000000401d20 sp 00007ffda79278d8 error 4 in raidard[...
Stephen- Thanks Again for all, your help- Things look great here. One Disk replaced completely and resynced, the second at 85% resynced. No Errors, No timeouts.
It took 3 days, 14 hours, 5 minutes to resync the first drive, probably the same for the 2nd.
When you are dealing with 12TB drives....wait!!
I will close this topic, offer thanks and kuddos.
Jeff
I agree that a failing drive can create spurious command timeouts on other drives - generally because the failing drive is messing up the SATA bus.
Have you tried running a disk test from the volume menu?
Another option is to power down the NAS, and test the drives with Seatools in a Windows PC.
Maxpower411 wrote:
It is currently at the default which I belive is now flex or Raid 5.
XRAID is the default - not FlexRAID. You can confirm the mode by looking at the XRAID control on the volume page. If there is a green stripe through it, then XRAID is on.
XRAID will use RAID-5 when you have a 4x12TB array.
How do a run a disk test from the Volume menu? I am clueless on this .All I have seen is the ability to hover over each disk and look at it.
I did not get a critical error. The error I showed came up from diagnostics in Raidr. It also showed in the disk area of my downloaded files.
If I was to check the drive with a PC, the procedure whould be shut down the nas. Pull the Drive. Put it on my USB dock. Then Run a seatools program. Which Program? I am hoping I do not have to do this, and wondering if the log files can help diagnose this. Will the seatools progam address the command timeouts, and truly consider the disk bad, not all timeouts are critical- OR NOT.
Thanks for the info
Jeff
Disk 2 Was the last disk to resync. (This just dawned on me)
I never saw a way to test Disks in the Volume Area
Maxpower411 wrote:
How do a run a disk test from the Volume menu?
Click on the volume settings wheel.
Hey Stepen-
Thanks again for all your feedback-
(Running X-Raid (Raid5)
Currently running a disk test, wonder how many days this might take. Any guess on
which disk is the culprate? I did replace one already, do you feel these numbers, at this point are worth further examination. (I was thinking of adding one more disk-but want to get to the bottom of this first. Do not want to increment these timeout numbers). Is Seatools the PC program you talked about, and do you feel these timeouts are enough to call either disk bad? (especially with no critical errors) All Disks Being New, also know as untested.
Anyone else that has an idea pleease feel free to "chime in"- all this can really be time consuming and any idea might help.
I will be checking back all weekend, any ideas from anyone might help.
Thanks again- Jeff
Maxpower411 wrote:
Currently running a disk test, wonder how many days this might take.
I think it'll take ~24 hours or so. It will depend on how much you use the NAS during the testing.
Maxpower411 wrote:
Is Seatools the PC program you talked about,
Yes. It's running pretty much the same test. But it's only running on one disk, which might make it easier to isolate.
Maxpower411 wrote:
do you feel these timeouts are enough to call either disk bad? (especially with no critical errors)
It is considered a critical smart parameter, and if a write command doesn't complete then there can be file system corruption. So it is concerning. Not sure I'd call them "bad" yet (given the very low count), but if the errors continue it's best to replace them.
If the disks are just purchased, you might still be able to exchange them with the seller.
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