> Seth Vidal wrote:
>
> We've got DLT's doing backups right now and we're conceiving
> that it might
> be cheaper to setup a system with 2 or 3 linear striped or
> raid 0 34+gig
> ide disks and have 2 sets of these disks that we swap out
> week to week for
> backups - rather than spend a fortune in DLT tapes and deal with a
> whopping 4MB/s transfer time. We would be using a set of disks for 4
> weeks then swapping out to another set - the other set would be fresh
> formatted at that point and would be ready to go for the next month's
> backups.
Price wise, this seems like a good approach. If it were my system, I would
be concerned about disaster recovery. I have been a believer for a long
time in tape rotation and offsite storage. Also, you are risking losing
4 weeks worth of data; a full backup at least weekly and incremental
backups can save your business. You not only should think about system
failures,
but fires, floods, etc. An onsite disk storage scheme doesn't take these
situations into account. Perhaps, if you want to consider alternate
storage,
you should look at optical media or some other approach.
Bob Gerrish
