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Just bought two brand new Western Digital WD6002FFWX-68TZ4N0 HDDs (NAS Red 6TB). Installed them, threw them into a RAID 1 config with MDADM.
I just realized after about 32 hours of lifetime, that, even though I don't even have the drives mounted: BOTH of the drives are running at full (or near full) speed, making clicking noises (most of the time) and running at 53°-57°C. It seems like it started happening after I threw them into a RAID config, but I'm not sure because that happened about 1 hour into their use. I highly doubt this is two defective drives, gathered all this info using SMART tests.
Used iostat and iotop, and both show zero read/write on the drives on repeated tests, but they are still constantly spinning (and clicking once in a while).
Does anybody know where one should begin trying to troubleshoot this?
Please let me know if this isn't the correct area for this thread.
Last edited by PolishHurricane (2017-08-07 02:10:11)
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dmesg show anything?
I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.
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Scoured dmesg line by line, nothing abnormal/related, grep'd around it a little also in case.
Okay, I was able to use hdparm -y and hdparm -C to get them to spin down on idle activity. But still working on how to permanently get them to properly spin down on inactivity. Thinking about using udev. Just curious as to why I need to do all this.
*UPDATE*
Okay I think I figured this out, I'm a noob. I installed LUKS on top of this RAID1 array with mkfs.ext4. "ext4lazyinit" was running every single boot/mount. This was hidden in iotop for some reason and showed all zeros on every utility I had, so I didn't catch it. To fix, I reformatted the drive with: mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 /dev/sdX.
Last edited by PolishHurricane (2017-08-08 02:22:15)
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