Re: [Networker] Performance Tuning backup
2007-07-26 10:59:41
E Gold wrote:
Hi all
I run legato 732 on win2003.
I have 6 fiber LTO2 tape drives.
The server has 4 cpus and 4GB ram, and 5 Gigabit nic cards in a team.
All my legato server settings are the default. Tape drive target sessions
is 4.
I backup my lotus server daily, its 800gb and it takes 10 hours.
How can I increase the speed of this backup with tuning legato?
I do not think the network is the bottleneck as I recently added more nic
cards and it didn't help.
Should I change target sessions or parallelism?
Let's do some math:
You do 800Gb/10h = 22Mb/s.
GigE is 1000/8=125Mb/s.
LTO-2 is 30Mb/s (native).
For your current Lotus needs (and some growth) a single GigE link is
enough.
You didn't describe how many sessions the Lotus server (or its backup
agent) can do at the same time. I would also suggest that you will try
to monitor the performance on the Lotus server and see if you can see
any CPU or disk I/O bottlenecks on it.
Thanks,
Evan Gold
Financial Security Assurance
31 West 52nd Street
New York, New York 10019
212.893.2762
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