[Veritas-bu] Veritas-bu Digest, Vol 13, Issue 16 - exchange mailbox backup perf
2007-05-16 08:26:14
Subject: |
[Veritas-bu] Veritas-bu Digest, Vol 13, Issue 16 - exchange mailbox backup perf |
From: |
Mark.Hickey at hds.com (Mark Hickey) |
Date: |
Wed, 16 May 2007 05:26:14 -0700 |
I'm liking Simon's solution as a first step....
200 GB * 1024 = 204800 MB
204800 MB/3600 sec = 5.6 MB/sec
Assuming a 100 Mbit/sec LAN, and giving you the benefit of the doubt on
the bits per byte and protocol efficiency calculations, the best you can
hope for is 10 Mbytes/sec over the LAN, and you are getting 56% of that.
Factor in the inherent slowness of brick-level backup (getting away from
this is another good recommendation), think time on the client,
bandwidth contention (applications if you are using the corporate LAN,
and other backup traffic on a backup LAN), and your rates do not seem
unusual.
Back in the day when backup was my life, 200 GB was a fairly common
architectural threshold for SAN attaching a server for backup instead of
going over the net.
Mark
By the way - the comments above are my own, and do not reflect the
opinions, policies, practices, thoughts, wisps of ideas, etc. of my
employer. They have no idea I am even responding to this message, so
don't construe the merest thing about them from what I am writing.
> Failing this, backups over fiber?
>
> Regards
>
> Simon Weaver
> 3rd Line Technical Support
> Windows Domain Administrator
>
> EADS Astrium Limited, B23AA IM (DCS)
> Anchorage Road, Portsmouth, PO3 5PU
>
> Email: <mailto:Simon.Weaver at Astrium-eads.net>
Simon.Weaver at Astrium-
> eads.net
>
> -----Original Message-----
> From: veritas-bu-bounces at mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of
Anas
> Kayal
> Sent: 10 May 2007 13:17
> To: veritas-bu at mailman.eng.auburn.edu
> Subject: [Veritas-bu] Exchange Mailbox Backup
>
>
>
> Im backing up Exchange 2003 Mailboxes through my LAN. Backup
process
> takes
> about 10 hours for about 200GB of data. Does anyone know what I
can do
> to
> drop it down.
>
>
>
> Anas
Mark Hickey
Technical Consultant
Storage Management
HITACHI DATA SYSTEMS
Northeast Region
P 617-395-8568/M 781-254-6441
mark.hickey at hds.com
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