October 21, 20232 yr Hey All, Unraid's just flagged up that Disk 1 (which is only 2 weeks old) has a SEEK_ERROR_RATE issue with the status FAILING NOW. What does this mean? And what should I do with the Data on that disc? I have Disk 2 which is empty. DO I need to manually copy data from D1 to D2? I was under the impression that I could just remove D1 and replace with a new drive, and the data would be recovered from Parity? Logs attached. Thanks! alfred-smart-20231021-2102.zip
October 21, 20232 yr 38 minutes ago, siron1992 said: What does this mean? A seek error happens when heads are unable to locate the data. Could be mechanical or misalignment, but being the drive is new, I would warranty replace it. 39 minutes ago, siron1992 said: DO I need to manually copy data from D1 to D2? No, a disk rebuild to a new disk will work. An advantage of also copying data is redundancy incase something goes wrong during rebuild.
October 21, 20232 yr Author 1 minute ago, dboonthego said: A seek error happens when heads are unable to locate the data. Could be mechanical or misalignment, but being the drive is new, I would warranty replace it. No, a disk rebuild to a new disk will work. An advantage of also copying data is redundancy incase something goes wrong during rebuild. Thanks for the advice - last Parity Check was 10 days ago, should I rerun the check before removing the drive? In terms of moving the data for redundancy, is it just a case of manuall moving everything from /mnt/disk1 to /mnt/disk2 or am I missing something here?
October 21, 20232 yr Solution 1 hour ago, siron1992 said: should I rerun the check before removing the drive? I wouldn't. Just replace and rebuild the disk. If you choose to also copy, toss it in a subfolder on disk2 that way when you rebuild disk1, you won't have duplicate files in the same path across multiple disks. This will do it. rsync -avhPX /mnt/disk1/ /mnt/disk2/disk1copy/
October 21, 20232 yr Author 24 minutes ago, dboonthego said: I wouldn't. Just replace and rebuild the disk. If you choose to also copy, toss it in a subfolder on disk2 that way when you rebuild disk1, you won't have duplicate files in the same path across multiple disks. This will do it. rsync -avhPX /mnt/disk1/ /mnt/disk2/disk1copy/ You sir are a legend. You've answered my inital question, but just for clarity around Parity - I assume it continually writes to parity and the 'Parity Check' is just a fail safe to ensure Parity is accurate? Is that correct just so I understand how Parity works?
October 22, 20232 yr 1 hour ago, siron1992 said: I assume it continually writes to parity and the 'Parity Check' is just a fail safe to ensure Parity is accurate? You got it 👍
November 3, 20232 yr Author This has become an issue again. Im now on my THIRD drive! All drives fail in Disk 1. Drive 1 - Seek Error Rate of less than 30. RMA'd and replaced with new device. Drive 2 - Seek Error Rate of less than 40. RMA's again and replaced with another new device. Drive 3 - Been in overnight and Seek Error currently at 92 and dropping, even with no data being used/pulled from the Array. I'm losing my marbles! @JorgeB I heard you run lots of Toshibas. Any thoughts? I just cant understand why its always Disk 1 thats failing and not my Parity or Disk 2.
November 3, 20232 yr Community Expert The Seek error rate failing now attribute seems to be a common issue with some Toshiba models, possibly a firmware problem, the error usually goes away on its own, probably not worth replacing the disk just for that.
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