aaron

Another raid5 scare, and how to recover an apparently trashed array

This morning after waking up to lots of thunder and lightning, I got a text message saying my raid5 array had failed. Only this time, 2 of the 3 drives were missing. Since both of those drives were actually mounted via a vblade share (on a different physical machine), I assumed that the other server had freaked out during a power surge. I quickly rebooted the machine to bring back the vblade shares, but...

aaron

2/4 failed drives in a raid5 array??

Apparently raid arrays don’t like it when you kill power to the machine. We’ve been doing remodeling in the house, and I’ve been turning on and off breakers. Apparently I forgot which breaker the servers were on, and turned it off accidentally a few times. One of the drives apparently did fail for some reason. I accept this. This happens all the time, and that is exactly why I have a...

aaron

Failed disk when creating RAID5 array

I spent about an hour bashing my head against a wall with this one. I just put 4 400gb drives into my linux server. I didn’t feel like getting a hardware raid card, so I went with the linux software raid solultion. I run the command to create the array: mdadm -v –create /dev/md1 –chunk=128 –level=5 –raid-devices=4 /dev/hda1 /dev/hdb1 /dev/hdc1 /dev/hdh1 And then it starts to...