Networker

[Networker] NDMP slow down after teaming NIC's on the Networker Backup Server

2007-04-19 13:06:32
Subject: [Networker] NDMP slow down after teaming NIC's on the Networker Backup Server
From: Fazil Saiyed <fazil.saiyed AT ANIXTER DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 19 Apr 2007 13:01:00 -0400
Hello,
I would verify if the teaming performance without NDMP in the mix, 
meaning, just do some copy, use utilities such as iometer etc to verify if 
your teaming is correct as designed, if incorrect mode or config exist you 
may be using only one or even in some case worse performance since the 
team may have to redo lot of packets inbout\outbound, you also need to 
verify correct config on your ethernet swith for it to work correctly, i.e 
in my expample i Team two NIC on server then also did
enable sharing 4:1 grouping 4:1,4:2 ( In this example, port 4:1 acts as 
single mac address to where server sends and receives its data from, while 
4:1 & 4:2 make up the team on the eithernet switch).
There are more then one method to implement the team on the switch, check 
your vendor and pick the one that makes most sence.
The throughput which seems heigh could be becasue of blok level backup 
over eithernet wich might be lot more efficent then the regular trafic.

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