> Go for RAID10. BackupPC's accesses data very randomly because of the
hashing-pooling  scheme. It also creates a lot of directories and small
files, so get very fast drives  (with low seek times, throughput shouldn't
be an issue).

It sounds good. I hope that gives us the best performance.

> Hm, the main reason for this might be that the OS is able to optimize disk
access better with SW-RAID. With HW-RAID, the OS only sees a huge block
device, it doesn't know of the individual disks nor stripe size etc. of the
RAID container.

That is interesting. Another Linux guru I know definitely prefers SW-RAID.
It sounds like perhaps Linux does a better job with it. And, of course, we
won't have to buy the controller. We'll get serial ATA no matter what. I
don't see myself doing any partitioning other than the swap anyway.

> I wrote myself a shell script which get's called by my Bacula job.

I'll be using Lone-tar for backups. There's no question about that. It's
outstanding.

> BackupPC's performance is mostly affected by the number of files, not by
their size!

We've got lots of graphical files. We have big files.



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