-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Scott Marlowe wrote: > On Mon, 2006-08-07 at 15:18, Ron Johnson wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Scott Marlowe wrote: >>> Oh, I see where you were headed. >>> >>> I've found a bit here and there googling about for multiplex and tar, >>> and found an IO:Multiplex module for perl. >>> >>> I don't see why someone couldn't make use of it to create some kind of >>> system where you'd do: >>> >>> pg_dump dbname | perl mulitiplexscript device1,device2,device3,devicen >>> >>> No need for postgresql to support it directly. Restoring would likewise >>> just be a reverse operation. >> Interesting. Many thanks. Scary though that it hasn't been touched >> in 30 months. >> >> With multiple SCSI cards, each with it's own tape drive, this >> immensely speeds up the backup operation. > > Yeah, I read the description, and I think it's just a fancy name for > tee. sigh. Not REAL multiplexing, but stream duplication. This is where a multi-threaded pg_tapedump would be more effective, since it would be able to, for example, have 4 threads reading (different parts of) the database and writing to 4 separate tape drives. - -- Ron Johnson, Jr. Jefferson LA USA Is "common sense" really valid? For example, it is "common sense" to white-power racists that whites are superior to blacks, and that those with brown skins are mud people. However, that "common sense" is obviously wrong. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFE16wiS9HxQb37XmcRAvi0AJ0eHuurG7cC3HC9A1lOMXvcBDJ7QACeMlyB bS3ozQ69gFgrM70oHGJr8Zk= =8N8c -----END PGP SIGNATURE-----
