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Re: [Veritas-bu] General Advice - Flash Backups
2008-02-11 11:22:22
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Thank you Ed. Yes, our environment is a mixed and lot of SSO's, but it
seems to work. Providing we dont get any real failures, things work
fine.
The files are a real "mix
and match" - but if I can get less than 18 hours, I would be very
happy.
Im trying to find a PDF on this document for NBU 5.1 - but unable to find
anything relevant. Is this still a seperate product to buy, or is it part of the
so called "Advanced Client" ?
Thank you
On Feb 11, 2008 9:21 AM, WEAVER, Simon (external) <simon.weaver AT astrium.eads DOT net>
wrote:
Scenario: 1 Win2k3
Server with 8 VDisks connected to a large enterprise SAN. environment Win2k3
Master + Many Media Servers using SSO. LTO2 Drives.
Total Data is approx 2TB split across these
vdisks.
As Data is a mixture of files, sizes, compressed
zipped and uncompressed, I get the backups completing in around 18 hours as a
San Media using SSO.
Just wondering if Flash Backups are the answer here
for this type of system?
Flash Backups are the answer for lots of little files. If you have a
lot of big files, it won't do much for you. Our original testing was on
250GB volumes with 10M files on them and Flash Backups cut the elapsed time in
half.
I just checked one of our Windows file clusters with a wide
mixture of file sizes and it backed up 525GB in under 5 hours and that's just a
single stream - there were multiple streams active on this server at the same
time. This job was writing directly to LTO-3 drives at about 33MB/sec over
a GigE network. We don't use SAN Media Servers at all - in my opinion,
they're evil when sharing tape drives.
.../Ed
--
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org
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