[mythtv-users] Reassemble RAID with mdadm

[John Drescher]

> Here is the current status of my raid -
>
> mdadm -D /dev/md0
> /dev/md0:
>        Version : 00.90
>  Creation Time : Mon Dec 14 19:17:08 2009
>     Raid Level : raid1
>     Array Size : 976759936 (931.51 GiB 1000.20 GB)
>  Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
>   Raid Devices : 2
>  Total Devices : 2
> Preferred Minor : 0
>    Persistence : Superblock is persistent
>
>    Update Time : Tue Mar 16 09:00:38 2010
>          State : clean
>  Active Devices : 2
> Working Devices : 2
>  Failed Devices : 0
>  Spare Devices : 0
>
>           UUID : d376cfd0:a438be3c:5f1e94b5:d63edfe3 (local to host myth)
>         Events : 0.283797
>
>    Number   Major   Minor   RaidDevice State
>       0       8       17        0      active sync   /dev/sdb1
>       1       8       33        1      active sync   /dev/sdc1
>
> So if the status ever changes to degraded(not sure what it would
> change to if bad sectors etc...) could I simply bring the box down and
> replace with another drive?  I don't have any spares defined trying to
> keep power usage as low as possible.
>
> Or is there an added set of commands to run when the bad drive is replaced?


mdadm /dev/md0 --add /dev/newdrive

John