On Wed, Sep 2, 2009 at 11:44 AM, Les Mikesell <[email protected]> wrote:
> Mark Phillips wrote:
> > I am setting up a new backuppc server. Are there any advantages to using
> > an external drive (USB or eSATA) over an internal drive to store the
> > backups? The server is an older Pentium 3 500 MHz box running Debian
> > Linux. I plan on using ssh/rsync to do the backups for other Linux
> > boxes, a Windows box, and a Mac.
>
> USB is considerably slower than SATA/eSATA even with the same drive on
> the other end of the adapter - and the motherboard USB ports on a P3 box
> are likely to be 1.x which is too slow. Otherwise the tradeoffs are
> fairly obvious. The power connection can be fragile on external drives
> if you move them around much. Also, you might want to consider some
> sort of RAID mirroring. My favorite is a 3-member RAID1 where 2 drives
> are internal and the third is a set of external drives that are
> periodically added long enough to sync, then rotated offsite.
>
>
Just an FYI if you havent been on the lists long or are new. Backuppc is
primarily bound by IO. A USB devices may say it has the bandwidth to do the
job but USB delivers very slow IO performance compared to a hard disk.
eSata is ideal for external drives but make sure the controller you buy can
hot-swap (since you are on a p3 500 there was no Sata interface in that era)
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