[mythtv-users] The purpose of a Secondary Backend is... (is this really OT? I'm not sure)

[Glen Hawksworth]

What a fantastic amount of discussion on this topic. Thanks everyone for
all the input I now have a much better understanding of secondary
systems.
Cheers,
Glen

n Fri, 2008-06-20 at 09:50 -0400, Sam Hooker wrote:

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> | One caveat though: if the secondary peer is disconnected long enough,
> | the primary will run out of auxiliary storage and it will then be
> | necessary to sync the entire partition when the secondary is
> | reconnected. My most recent experience with this was a 70GB partition
> | that literally took all day to sync over a GigE link. For this reason, I
> | have my doubts that this use of heartbeat/DRBD is a good one.
> 
> Yeah, I'd imagine that a number of factors (how active your DB is, how
> often mysqld is flushing to disk) can make its on-disk storage a moving
> target for DRBD to synchronize. That's one of the reasons I thought
> MySQL replication (with just DRBD for the recordings -- no Heartbeat)
> would be the way to go. Then, you could just write a script on the
> portable machine to mount the disk and start myth*end.
> 
> 
> Cheers,
> 
> - -sth
> 
> sam hooker|mythtv at noiseplant.com|http://www.noiseplant.com
> 
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