The traditional option is dump/restore, which is included with the
YDL distribution.
If you're looking for fast, efficient, convenient, disk-to-disk
backup software, take a look at rsnapshot on http://
www.rsnapshot.org/ .
It's worth noting that dump/restore can also be used disk-to-disk;
you don't need a tape drive.
If cost is no object, then you'll want to go disk-to-tape with
offsite storage of your tapes. If you want to go that route, email
me and I'll ask our Operations folks for a list of vendors for off-
site storage with recommendations on quality of service. Amanda or
Bacula will be useful software for this option -- allowing more
efficient use of your tapes and tape drives than a simple dump/
restore script would get -- at the expense of additional complexity
of setup.
If you want ultimate simplicity and security and don't care how much
it costs, you can do a "remote-mirror" via the internet with the
backup disk located off-site on a commercial co-location server.
If you are one of a number of co-operating sites, each with plenty of
surplus disk space, there are some experimental distributed file-
systems that use error-correcting codes to split files up into
optimally redundant pieces and spread the pieces out over the whole
set of co-operating nodes. In this way the file can't be said to
reside on any one particular machine. Among the interesting
properties of these schemes is that they are resistant against total
destruction of any subset of the nodes (up to a size that depends on
the error-correcting code used). Another interesting property is
that if the bad-guys seize any subset of the individual nodes (again,
up to a size that depends on the code used) they won't be able to
reconstruct any of the files.
So there are a range of options...
Rick
On Jul 24, 2006, at 6:02 PM, Nick Jones wrote:
Hello, I've gotten everything up and running nicely with YDL 4.1 on my
XServe with XRAID. Now I just need to get some backup software
running to create a backup before formatting my RAID volume that has
the current backup.
I am looking into AMANDA and Arkeia backup software. Does anyone
have any suggestions for backup software? Cost is no issue, I want
the most reliable recovery mechanism that exists, so if you have had
problems with certain solutions please let me know.
I looked at bacula, but something about it "sucking the essence from
my computers every night" made me uneasy :)
Thanks
Nick
--
Nick Jones
University of Iowa
Dept of Neurology
Systems Analyst
319-356-0451
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