psycat

I think I'm up and running again. The Pre-clear finished as well as the parity sync. My array is started and protected. Thanks for the help everyone.

Thanks for the help. I bought a new drive and it's pre-clearing now. I also turned off the over clocking and found another setting in the bios where ACPI was set to V1.0. I changed that to ACPI V3.0. I'll see if that helps improve speed.

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

Including another diagnostic log in case it's helpful. tower-diagnostics-20160111-0845.zip

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?

The errors are on the parity drive and its up to 79.

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.

Uh oh, the parity check has slowed down and it says it found 14 errors so far on the parity disk.

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?

The parity sync is still running. It seems to be done with one of the two data disks.

No, there are no errors showing up in the error column. It has read through 1.3TB of the drives.

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)

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

Wow... I didn't realize a parity rebuild could take so long. Still running and it's estimating 7 more days.