ADSM-L

Re: Configuring Backup through WAN (How to send less data in each packet therefore reducing the bandwidth usage)

2006-11-03 13:52:36
Subject: Re: Configuring Backup through WAN (How to send less data in each packet therefore reducing the bandwidth usage)
From: Richard Sims <rbs AT BU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 3 Nov 2006 13:47:19 -0500
On Nov 3, 2006, at 11:21 AM, Murugan, Palani wrote:

...
I want to know how to configure the schedules and option file so that
less data is sent in each packet therefore reducing the bandwidth
usage
but prolonging the backup it's self.

You can "de-tune" the client by doing things like setting a tiny
TCPWindowsize, a small TXNBytelimit, TCPNodelay Yes, and
MEMORYEFficientbackup Yes.  (Grossly speaking, review the TSM
Performance Tuning Guide and "do everything wrong".)  You can also
employ OS "knobs" to penalize the dsmc process to throttle it.

Beyond that you might look into how realistic Subfile Backups are for
your Windows clients.

   Richard Sims

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