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Josh-D. S. Davis

Xaminmo / Omnimax / Max Omni / Mad Scientist / Midnight Shadow / Radiation Master

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Today - Disks
Josh 201604 KWP
When adding drives to a degraded array, the order added can matter. During rebuild, one of the drives went offline. This took the controller offline, which took a second one.

I couldn't stop the array because it had a VG on it. I couldn't export nor set the VG unavailable because the underlying array was inaccessible. Stupid leenooks LVM.

Anyway, I rescanned the busses and the disks came back. This concerns me because I have all disks set to fast fail on boot so they don't time out for the array.

Readding the drives after they came back caused them to show up as spare and not live.

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(Deleted comment)
Yah, I upgraded and that was a mistake. :)

Part of the problem is the SATA controller's on the motherboard. It's really two ports on the same bus, so if one disk dies, it often takes both on that one controller.

Well, you know, when IBM drops in a new disk, they do a "certify" which means it does r/w test on the whole disk, which causes the drive to build an internal bad-block map. I didn't do that with these disks.

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