We can't afford the bandwidth to have a DISK/SAN offsite to do backups
for DR and we really don't have that much production DASD (1.5-2 TB of
production data).
If you are backing up to DISK/SAN on site what do you do for DR? If you
site is damaged: fire, water, earthquake, plane, ect. Then backup is
damaged, no DR.
Although DISK/SAN may seem cheaper than tape, the bandwidth needed to
move the data from one site to another may not be so cheap.
Chantal wrote:
Hi all,
I thought the answer to this question was extremely simple, until we
discussed this in my "Introduction to z/OS" class today. I always felt
that backing up to a disk device would be inefficient, much more
expensive and more likely to fail when compared to tape. However after
a classmate brought it up, I wonder now if it might be good to do at
least some backup to a SAN.
How do you folks feel about this topic? Is it best to stick with all
tape, all disk or a mixture of the two? Are companies continuing to
use tape because they have already invested so much money in silos,
etc? I know there won't be one right answer for every organization,
but I'd love to hear from you.
Thanks,
Chantal
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