Advice on external backup of a Linux server.
Bill Gradwohl
bill at ycc.com
Thu Feb 10 01:30:19 UTC 2005
Arthur Pemberton wrote:
> What if something goes wrong in the chasis, for example, power surge,
> all teh HDD's go? no?
We've been in the micro computer networking business since 1982. In all
that time, I've never seen a power supply fry a drive. I don't doubt
it's happened, but I've personally never witnessed it, nor have any of
my employees. I have seen a lightning strike take out a whole slew of
machines in one shot, but what are the odds of that?
> The prob I have I have with the USB solution is that it requires user
> intervention.
What user intervention? If you use an external drive, it has its own
power supply. Just leave it plugged in permanently via its USB cable, if
what you're after is a "home" solution.
Even for a business, you can script rsync operations to fit X number of
snapshots on to a single disk, so that you only NEED to touch it every
few weeks after its filled up with umteen generations. User intervention
every long while isn't so bad - is it?
BTW - We're getting our clients used to living without tape backups,
opting for disk based backup solutions in a variety of forms. I mean
real disk, not CD-ROM or DVD. One client has a box with 6TB of disk
capacity. Only 2TB is their data. The other 2+2TB is for backup using
two 12 port 3Ware Escalade controller and a large hot swap backplane.
Works like a charm.
You can look up D2D or even D2D2T on Google to get some idea of what
industry is doing.
--
Bill Gradwohl
bill at ycc.com
http://www.ycc.com
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