Recovering the OS from software RAID HDD crash with rPath (or RHEL/CentOS/Fedora)?
I'm trying to build a home NAS using openfiler. I don't have a hardware RAID so I have set up a software RAID.
So my disks are
Filesystem Size Used Avail Use% Mounted on
/dev/md3 2.0G 693M 1.2G 37% /
/dev/md0 251M 19M 219M 8% /boot
tmpfs 1.9G 0 1.9G 0% /dev/shm < (swap?)
/dev/md1 745M 17M 690M 3% /var/log
/dev/md0 is raid 1 mirrored using sda1 and sdc1
/dev/md1 is raid 1 mirrored using sda2 and sdc2
swap is raid 1 mirrored using sda3 and sdc3
/dev/md3 is raid 1 mirrored using sdb1 and sdd1
I set that up using this doc
and this for reference
So you guys probably can't speak for OpenFiler, so just tell me if this holds true for RHEL/CentOS.
Lets say the sda drive dies. The info is mirrored on sdc. I've done some reading and I just want to make sure that this sounds right.
Using the instructions here:
1. Partition /dev/sda the same as /dev/sdc:
sfdisk -d /dev/sdc | sfdisk /dev/sda
2. Add the partition to the array:
mdadm /dev/md0 --add /dev/sda1
mdadm /dev/md1 --add /dev/sda1
mdadm /dev/md3 --add /dev/sda1
(what about swap?)
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