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Networker 7.2.2 Performance Question
Hi,
I've got some performance issues with my Networker 7.2.2 Install (Windows 2003, 4 Tape Virtual drives from a CDL). Generally if i've got a lot of jobs running (32) its not too noticable as each virtual drive multiplexes up to 4 save sets, however if only one job is running it will generally only backup at about 2,000-4,000 KB/s. I've tried to diagnose what could be causing this, but with not much luck so far.
- It occurs on pretty much all backup clients.
- while the job runs if I manually generate load on the backup client disk I can see an massive increase in load (i.e. Networker is not getting any where near the throughput on the disk). So the disks are ok.
- If I create network traffic between the networker server and the networker client I can max out the 1Gb link. So I think the network is ok.
- If I run many jobs then I can max out the Virtual tape drive (80MB/s). So I think the CDL / SAN connectivity is ok.
Does anyone have any ideas about where I can go from here?
I've got some performance issues with my Networker 7.2.2 Install (Windows 2003, 4 Tape Virtual drives from a CDL). Generally if i've got a lot of jobs running (32) its not too noticable as each virtual drive multiplexes up to 4 save sets, however if only one job is running it will generally only backup at about 2,000-4,000 KB/s. I've tried to diagnose what could be causing this, but with not much luck so far.
- It occurs on pretty much all backup clients.
- while the job runs if I manually generate load on the backup client disk I can see an massive increase in load (i.e. Networker is not getting any where near the throughput on the disk). So the disks are ok.
- If I create network traffic between the networker server and the networker client I can max out the 1Gb link. So I think the network is ok.
- If I run many jobs then I can max out the Virtual tape drive (80MB/s). So I think the CDL / SAN connectivity is ok.
Does anyone have any ideas about where I can go from here?
- I ran performance monitor on the network link, and then firstly copied file data to to the networker server using windows shares (didn't max out the link, but consumed a lot more than the backup was taking), and then used a util called netperf to generate traffic between the client and the server.
ble1
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Posted July 23rd, 2007 00:00
Can you tell me how did you test network connectivity?