[mythtv-users] Removable storage with MythTV

chris at cpr.homelinux.net chris at cpr.homelinux.net
Mon Aug 8 20:45:21 UTC 2005


On Mon, Aug 08, 2005 at 10:45:55AM -0700, Fedor Pikus wrote:
> This way, you pull the disk out of source computer, life goes on. You
> plug it into destination, RAID reconstructs, now you have your
> destination disk updated. You take the drive out of destination, it
> stays as the mirror of the source disk until you update it again.

Are you using software RAID?  Are you on a budget?  If so then you can
use just two drives total (one per machine), assuming you're willing to
leave the playback machine shut down when you go to fetch new shows.

Configure both drives with normal Linux and swap partitions and install
your favorite distro on each.  Then put both drives in one machine and
build a mirror array using a large partition from each drive (so they'll
have the same serial number).  Then split the drives and run both
machines in "degraded mode".  You can do anything you want on the
playback machine while the recording machine fills up the RAID
partition.  When it's time to copy the data, tell the RAID on the
playback machine that the partition is dirty and then shut down and pull
the drive.  Put the drive into the recording machine and tell it to "hot
add" the dirty partition.  It will mirror the recording partition onto
the playback partition.  Now shut down, pull the drive and return home.
Your machine should mount the refreshed drive as the recording machine
marked it clean again.  Rinse and repeat.  Since your MySQL database is
also on the mirror, your MythTV menu should have all the correct show
information.



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