New answers tagged hard-drive
We don't proactively replace disks either. Backblaze recently did a blog post on this subject. One should note that they primarily use consumer grade drives.
We don't proactively replace disks. Wait until they fail or report prefailure status. This is why you have (hardware) RAID, management agents, failure indication LEDs on the server and a monitoring solution. Keeping your gear under warranty and maintain your support contracts (within reason), having cold spares of components that fail often (disks, power ...
Had this happen to me tonight for a different situation. One of the PSU lost power. I think the gist is, if there is a flashing light in the bottom of the UI, fix that problem.
sdb is failing, as evidenced by the line: [sdb] Add. Sense: Unrecovered read error - auto reallocate failed You need make sure everything is backed up and replace the drive. For good measure, check all other drives in the system to see if they are having issues, using the drive manufacturer's tools. From what you've posted I can't tell what's going on ...
Ctrl-R during bootup brings up the BIOS menu for the controller. Go across to Foreign (Ctrl-n), hit F2 for options and choose Import Foreign Config to load previous config from the disks or choose clear foreign config to wipe it and start from scratch.
Try to run this command under nice. Before doing that you should run vmstat and iostat so to get a better picture of what is going on. If space is not an issue for you, remove the compress flag as when it comes to images,archives etc it is a waste of CPU time.
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