[mythtv-users] An LVM'd drive died! What do I do...

[Bryan Halter]

On Oct 27, 2005 03:02 PM, David Bennett <davidbennett1979 at gmail.com>
wrote:

>I must admit you have me quite intrigued by this RAID 5.
>
>So heres the deal, I am going to go out and buy some disks.
>Anything I need to know before I start?
>
>How (and what) do I need to know to setup a software Raid 5 on my
>linux? Any guides etc.?
>
>Also, I wonder if there is any easy way to get the info off from my
>current 2 drive LVM onto the raid? (I would like to use some of these
>LVM drives to be put in this raid). Can I started with all my info on
>one HD and turn that into a Raid, or does a raid have to be
>parititoned, constructed and THEN have information copied on to it...
>
>am I in over my head?
>
>dave
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Well to start with for RAID you need to have disks that are all the same
size (preferably the same model).  I believe Linux supports growing
software RAID volumes and I'm sure someone will correct me if it
doesn't.  Personally I'd go out and buy a 4 device SATA-RAID controller
and 4 250GB drives that will give you 750GB of storage and fewer
headaches since the RAID array will be seen as any other scsi disk and
the card will do the thinking so you won't take a CPU hit for having
RAID.