[mythtv-users] Migrating RAID
Jay R. Ashworth
jra at baylink.com
Thu Nov 1 03:37:01 UTC 2007
On Wed, Oct 31, 2007 at 07:22:08PM -0700, Yan Seiner wrote:
> I am bringing up a new server which will have 6x400GB SATA drives for
> data. I plan to allocate all of it to myth. The OS lives on SCSI drives.
> Currently I have 2 empty 400 GB drives in the new server and 4 - 400 GB
> drives in the old server, with about 800GB of myth stuff I want to
> keep. I plan to use the 4 drives from the old server in the new server.
> I have a 1TB backup server that currently has all of my myth stuff.
> I'm trying to think of some way to migrate this while learning about mdadm:
> 1. Remove one drive from the old server
> 2. Build a RAID-5 array on the new server with 800 GB storage with 3 drives
> 3. Copy all of the myth stuff from the old server to the new server.
> 4. Remove the rest of the drives and install in the new server
> 5. Grow the new array to its full capacity of 2 TB
> The backup server is untouched so if it all craps out I have a backup.
> Any thoughts? Is it doable? Practical? Suicidal? (It is halloween...
> And the ghosts of computers long dead roam the ether....)
Well, you *know* what my answer is going to be here, right?
SuperDLT 220 and LTO-1 tape drives and tape are quite a bit cheaper
than you think, until you look.
Grab the trial version of BackupEdge, backup to tape. Change drives;
build arrays; restore.
Sure, it's not as much *fun*.
But they don't pay me to have fun. :-)
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
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