Legato w / Intel 10GbE Nic

[lpwell1]

Does anyone have any information on running Legato on 10GbE?

Current configuration includes:
Windows 2003 Server with current SP
HP DL 585 Gen 2 with 8 Proc, 8Gb of Mem
Intel 10GbE Nic (SR)
Legato 7.3
Cisco 4506E with Sup6
Cisco WS-4606-X2-E 6 port 10GbE Mod (Xenpak SR)

Problem: When Legato starts Backup performance is very limited. Tried to tune the card to allow for max MTU and RX & TX Packet size. When we run legato on the 1GbE it works fine with the exception that the 1GbE card runs at 100%

 

[denisfr]

Hello,

legato or networker ?

 

[lpwell1]

Networker / Legato are the same since being bought by EMC. Networker 7.3 is the application.

 

[denisfr]

Sorry, but Legato was a company who developped software, among them, was Networker ;-)

So let's return to the problem.

Have you checked the autonegotiation of your NIC ?
Sometimes Networker works better with forced full duplex parameters rather than autonegotiation.

Is the problem visible on all clients or just one ?

 

[lpwell1]

The standard for all 10GbE Nics are auto. Neither the Cisco switch (4506E) or Nic allow speed/duplex settings. The problem appears to affect all clients traversing the 10GbE pipe. There is lots of information with using 10GbE on Unix/linux machines however, we are caught in the "Windows" universe and can't escape. We have to "make" it work with this OS.

 

[xmsre]

Either approch (legato or networker) is the essense of evil. If you're not doing snapshots, you're wasting storage space and network bandwidth.