January 30, 201313 yr Hi all I've been using and been very happy with a basic unraid setup (v5.0-14 beta) for quite a while now. A week ago I ugraded to a WD green 2T data drive, precleared it once, did the data rebuild and all was good for a week. I tried a large data transfer to it yesterday and the system started acting up (slow folder updates, unable to access via web interface at times) and from the unmenu last 6 syslog lines I could see a bunch of errors. Today the drive is dead. It shows on the main menu as being missing with a ton of error messages in the syslog. Something must have corrupted it. Cables are all good, so I'm thinking it must be a dud, or can it be salvaged? I don't know to test it at this point. syslog-2013-01-29.txt
January 30, 201313 yr I have had an unusually high number of WD Green drives fail within the first few weeks of use and had to RMA them. Unless you can find a problem on the unRAID server such as a bad cable then I would suggest that you try connecting the drive to a PC running windows so that you can run the Western Digital Data Lifeguard Tools for checking the drive.
January 31, 201313 yr Also try running more than one preclear cycle when you preclear a drive and don't skip the pre and post read steps (if you did). I do 3 cycles and I've heard of people doing 6 cycles before putting them into their servers for use. Others use several passes of "badblocks" which will exercise the sectors better than just writing just zeros like preclear. I stop at 3 preclear passes. That has been very good for me. I've had about a 20% failure rate on WD green drives in the past year. That is why I'm buying RED drives now. Out of 10 drives I've only had 1 die during a preclear. Other then when a fan died and cooked some drives during a parity check - I've had ZERO WD drives fail if they make it through 3 preclear cycles.
January 31, 201313 yr Author Post a SMART report for the drive. I don't see how I can do this as the drive does not get assigned now, it is just missing in the unraid main menu and I'm assuming the bios is not seeing it. What I'm wondering now is if I can put back the old 320g drive and check/correct parity while I think about what might have happened.
January 31, 201313 yr Post a SMART report for the drive. I don't see how I can do this as the drive does not get assigned now, it is just missing in the unraid main menu and I'm assuming the bios is not seeing it. It's missing from the array, because of all the bad sectors, but it's not missing from the system. You can still get a SMART report on it at a console, addressing it as sdc. Obtain a SMART report smartctl -a -d ata /dev/sdc >/boot/smartsdc.txt
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