Restoring Data to AIX - Slow

[MIScjryan]

Hello all,

I came across a major problem this past weekend, and figured I'd pass it along to the rest of you.

If you are experiencing poor throughput when restoring data with ArcServe 11.1 (may work for other versions, but have not tried, so I am no liable for any issues caused) to an AIX/Unix system, there is a quick registry hack that will fix it.

HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\BrightStor Arcserve Backup\Task\Remote

or, for Enterprise edition,

HKEY_LOCAL_MACHINE\SOFTWARE\ComputerAssociates\BrightStor Enterprise Backup\ClientAgent\Parameters

Change the following keys:
"SetWSRcvdBuffSize" set value to 65536 (in decimal)
"SetWSSendBuffSize" set value to 65536 (in decimal)
=====
The reason for the poor throughput is that, while AIX handles data in 64byte blocks, Windows, by default, only handles data in 16byte blocks.

This worked very well for me - cut my restore time from 34 hours to 1.5 hours. Hope this helps someone out!

--
Chris
Systems Analyst

Christopher Ryan
cryan.at.colemans.ca
visit us online @

http://www.colemans.ca