August 25, 201411 yr I have a strange problem with my unraid array. Attempting to write to one particular disk, what happens is the disk starts to read continuously, and only occasionally write some small amount. The array becomes very unresponsive, a simple directory listing would take 10s of seconds. It would go on for many minutes. The copy operation on the client side shows no progress at all, and eventually times out, notifying that the copy operation failed. To give you an example, I've tried to copy 3 files (about 800MB each) at once to the disk, which caused the disk to read for 40+ minutes. Once it finally stopped, the 3 files were there, but 2 of them with size of 0 bytes, and one ~200MB. There were no write errors indicated. I have no problem reading from the drive though, and after running a parity check no errors were found. Sometimes the copy starts fine, then suddenly the progress halts. If I pause the copy operation then, wait for the disk to finish reading, then resume the copy, I can manage to copy the file there in a few more pauses, depending on file size. Anyone experienced something similar? I suspect the disk may be dying. How can I be sure? The disk is a 2TB WD EARS drive, 93% full.
August 25, 201411 yr You should supply a syslog covering the period when you are having problems. That should show if you are having problems accessing the disk.
August 25, 201411 yr This sticky at the top of this subforum, How to report a defect and capture syslog and smart reports, will tell you how to give us better information.
August 25, 201411 yr Author Thank you for your quick response! Sorry for the missing logs, I will post them as soon as I get home!
August 25, 201411 yr Author Hello guys, here are the logs. I'm using Unraid ver 5.05. I remember copying files on the morning of 23rd, though I cannot see anything in the log. Since then I've added another disk to the array and I doesn't seem to be replicating the problem...
August 25, 201411 yr Does the drive have a jumper attached? This is a physical jumper on the pins at the end to the drive. What is the partition format?
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