January 1, 201610 yr I bought some new RAM for my Unraid Tower as well as moved a drive (one of the data drives) from a port on the motherboard to a port on a SATA card installed in a PCI-E 1x slot. I didn't make any changes to the Parity Drive. When I powered on the tower I see on the dashboard a red (X) in the Faulty column for the parity drive. Well one time when the server came up it didn't show a drive in the parity slot at all, then I powered it off, double checked all the connections inside and powered it back on. It detects the drive now, but shows it as faulty. The SMART status is green. I was thinking of running a manual parity check, but in the "Parity Status" section I only see "Parity is invalid" in red. I don't see a way to run a manual parity check? How to I get my parity drive back online?
January 1, 201610 yr Community Expert The following sequence should work: Stop the array and then unassign the parity drive Start the array. You should be told that it will be unprotected but go ahead anyway Stop the array and assign the parity drive. Start the array and unRAID should start building parity When the parity has been built, do a parity check (which should result in 0 errors) to make sure it was written correctly. This is basically the same process that would be used to force a data disk that had been marked as failed to rebuild onto itself.
January 1, 201610 yr Author Thanks itimpi, I followed your instructions (also found the same steps on the unraid wiki). Parity check is running now.
January 5, 201610 yr Author Wow... I didn't realize a parity rebuild could take so long. Still running and it's estimating 7 more days.
January 5, 201610 yr Community Expert Wow... I didn't realize a parity rebuild could take so long. Still running and it's estimating 7 more days. Something is still wrong. Go to Tools - Diagnostics and post the complete diagnostics zip.
January 5, 201610 yr Author Here is the diagnostics zip. I know this system is not built for speed at all. But I would appreciate a look to see if something else is wrong. The GUI reported speed of the parity rebuild (which I read in other threads is unreliable) stays around 1.2 - 1.5 MB/sec. tower-diagnostics-20160104-2109.zip
January 5, 201610 yr Community Expert Nothing obvious in diagnostics. You have mover running hourly but I assume that is intentional. What about your hardware makes you expect it to be slow? Are there any errors showing up on the Main page?
January 6, 201610 yr Author My server is low budget, which is why I assume it will be slower. It's a dual core Atom: http://www.newegg.com/Product/Product.aspx?Item=N82E16813500037 It only supports SATA II, so I added a SATA III PCIe card. Just before the problem with the Parity disk I had opened the case and added RAM (from 2GB to 4GB), moved the 2TB drive to the SATA III card and overclocked the cpu. For errors I'm just seeing 3 of these currently which I assume is related to the parity sync: unRAID Status: 05-01-2016 00:20 Notice [TOWER] - array health report [FAIL] Array has 4 disks (including parity & cache)
January 6, 201610 yr Author No, there are no errors showing up in the error column. It has read through 1.3TB of the drives.
January 9, 201610 yr Author The parity sync is still running. It seems to be done with one of the two data disks.
January 10, 201610 yr Author The Parity Sync finished this morning. It showed a warning saying the parity had not been checked so I kicked off a parity check now. That should complete in 6 hours based on previous runs. If that comes back OK, then I guess I'm up and running again. I just have no idea why a parity sync would take 8 days and 14 hours for a 2TB parity drive! Does anyone else have experience with how long a parity sync takes for their system?
January 10, 201610 yr The Parity Sync finished this morning. It showed a warning saying the parity had not been checked so I kicked off a parity check now. That should complete in 6 hours based on previous runs. If that comes back OK, then I guess I'm up and running again. I just have no idea why a parity sync would take 8 days and 14 hours for a 2TB parity drive! Does anyone else have experience with how long a parity sync takes for their system? When I had my 2tb array, it was between 8.75 to 12 hours for parity sync and checks.
January 10, 201610 yr Community Expert The Parity Sync finished this morning. It showed a warning saying the parity had not been checked so I kicked off a parity check now. That should complete in 6 hours based on previous runs. If that comes back OK, then I guess I'm up and running again. I just have no idea why a parity sync would take 8 days and 14 hours for a 2TB parity drive! Does anyone else have experience with how long a parity sync takes for their system? Parity sync duration should be similar to a parity check, my 2tb servers take a little under 6h.
January 10, 201610 yr Author Uh oh, the parity check has slowed down and it says it found 14 errors so far on the parity disk.
January 10, 201610 yr Author Wait, i have one drive attached to this pci-e 1x sata controller: SYBA SI-PEX40089 It's one of my data drives (not the parity drive which has the errors) Do I need to setup the script from this post? http://lime-technology.com/forum/index.php?topic=19882.30 I'm using unraid 6.1.6.
January 10, 201610 yr If your drive is already working, I do not think you need any additional scripts.
January 10, 201610 yr Community Expert Are the errors on disk1 or 2? Disk2 does not look very healthy: 183 Runtime_Bad_Block 0x0032 001 001 000 Old_age Always - 141
January 10, 201610 yr Community Expert Miss understood your post, still disk2 does not look good, parity SMART looks good, although with a somewhat high load count.
January 11, 201610 yr Author Parity check completed it says with 0 errors, however I see 3595 errors in the array devices table for my parity disk. What does this mean? Do I need to replace any of these drives? It sounds like from what Johnnie.black was saying I should replace disk 2?
January 11, 201610 yr Author Including another diagnostic log in case it's helpful. tower-diagnostics-20160111-0845.zip
January 11, 201610 yr Community Expert SMART for Parity still looks good but those errors suggest otherwise, I would try to do an extended SMART test.
January 13, 201610 yr Author I ran an extended SMART report for all the disks. I'm assuming they are contained in the diagnostics when I download the zip right? tower-diagnostics-20160112-2137.zip
Archived
This topic is now archived and is closed to further replies.