Hello!
I am running a Unraid server with 1 pairty drive, 6 data drives, and 1 cache.
I had a drive fail, it seems to have been a hardware failure, a SMART report shows 2814 "uncorrectable error in data" errors,
ER -- ST COUNT LBA_48 LH LM LL DV DC
-- -- -- == -- == == == -- -- -- -- --
40 -- 51 00 00 00 01 7b 64 94 37 40 00 Error: UNC at LBA = 0x17b649437 = 6365156407
And the recover software I am using gave me this:
Warning: Storage defect was detected in "read" operations of:
This error indcates the storage device failed to complete a read request due to error.
The power blinked and for whatever reason the UPS didn't hold, when it came back up disk 2 was showing as unmountable. I didn't do things the correct way, I am so used to UnRaid being foolproof that I didn't run dianostics to post when I saw the error, I just shut down and hoped for the best. (I've been up and running since 2015 with no issues other than the occasional drive failures where is disables the drive, emulates it, and I run a couple of days until the new drive comes in and I just swap and it rebuilds and I am fine)
I referenced the "check file systesm" wiki and ran through the steps to check an XFS drive. It couldn't find the superblock or any secondary superblock.
Currently the array is started with the one disk missing. Not all files are showing up on the shares (but do exist on the remaining disks) but I have read this is normal when you have corruption. For example, I have a blu-ray directory where I store an ISO backup of all my blu-rays. If I browse to l33tnas\data\blu-ray the directory shows as empty. If I browse to \\disk1 (or 3, 6, 7, or 8\blu-ray the data is there.
I have all data from the other 5 disks backed up to external drives. I am running a recovery on the dead drive with UFS Explorer to get any of the data I can.
Where do I go from here? Is there any way to recover what I have without starting from scratch? I see a document about replacing the boot drive and adding existing data drives back in to the array, all my drives are clearly labeled so I know which one is the parity disk, but I am more concerned about the config and all the shares, I don't really want to try to reinvent the wheel on all of those.
I am attaching the current diagnostics, if there is any other info I need or if I need to pop the failed drive back in and run diagnostics again let me know.
ps. If it looks odd in my config that I have disks 1 2 and 3 and then 6 7 and 8 there is a reason. When the array started getting too large I stole a couple of drives from it and started ANOTHER Unraid server I just never took the time to renumber the drives (although it does bother me)
Thanks!
l33tnas-diagnostics-20230422-1008.zip