Subject: Re: Amanda backups: gtar or dump?
To: None <firstname.lastname@example.org>
From: Sean Doran <email@example.com>
Date: 10/28/1998 12:24:36
Um if we are redesigning backup stuff, I have a question.
Should backups be tape-focused, or considered a form of
remote long-term stable storage?
Personally, the reasons I've used backups are, in order of frequency:
-- accidentally nuking a file that was important
-- needing back an old version of a file that has been unlinked
in the past
-- moving files off a disk, repartitioning, and moving them back on
-- replacing a dying disk that tended to crash and corrupt files
with all the fun of figuring out which files were corrupted
finding older versions of files fast is nice. A colleague and I
have been spoiled by IBM's ADSM for a while, and so mostly are
looking at ways to make backups to a large RAID array, which then
would put long-term erased/overwritten versions of things onto
long-term stable media in something like LRU fahsion.
The fun is in figuring out how to support the (ick) multiple OS platforms...
The plan9 mindset (http://plan9.bell-labs.com/plan9/doc/README.html, look
for "Backup and Recovery") is sorta neat, too, for that matter.