Slow disk access while rsync - what should I tune?
Matthew Dillon
dillon at apollo.backplane.com
Sun Oct 31 20:44:40 UTC 2010
:> and the output produced by dump is not live-accessible whereas a
:> snapshot / live filesystem copy is. That makes the dump fairly
:> worthless for anything other than catastrophic recovery.
:
:Ever heard of "restore -i"?
Have you ever tried to restore a single file from a 2 Terrabyte dump
file ? Or even better, if you are using incremental dumps, try
restoring a single file from 6 dump files.
I'm not saying that dump/restore is completely unusable, I'm saying
that it MOSTLY unusable for the use cases people have today for backups.
There is a certain convenience to being able to restore a file from
a live backup in a few seconds verses having to struggle with large
multi-layered incremental dump/restore files that were designed to be
spooled off to tape units.
-Matt
Matthew Dillon
<dillon at backplane.com>
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