Re: Backing up large databases

On Apr 28, 2006, at 10:34 AM, Andy Shellam wrote:
> My future plan for when my database grows larger, is with the use
> of WAL logging – have a base backup taken on a Sunday morning (our
> quietest time), ship this to the hot-standby once a week, and start
> it off in a recovery mode (using my rolling-WAL script I’m testing
> now.)  Then throughout the week, send the WAL logs from the live
> box as they become available down to the standby, which then get
> processed on arrival – these files are 16MB in size (I believe this
> can be changed).
Theoretically the size of WAL files can be changed, but in practice
no one ever does this. In other words, it's probably not a great idea.
> This is coming from an 8.1 server, I believe it’d be okay for 7.4
> but don’t quote me on it.
PITR was introduced in 8.0. There's a number of other reasons to
upgrade as well. In the meantime, Slony might be a viable alternative.
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461