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1070

May 11th, 2009 11:00

Performance issue with one of the CIFS Servers

We have a NS80. We have about 9 Cifs Servers, all are dedicated as file windows file servers. They are all the same except for names and IP address.

We have 1 that we get the users complaining about slowness. We can't seem to find anything wrong. I have tested it out.

Saved a doc to a cif that is not having a issue, saves fine. Do the same with the other and it takes a good 2 minutes to save, where it should only take 10 - 15 seconds.

90 Posts

May 11th, 2009 12:00

Do you have CAVA setup? If so do you have a global CIFS server for CAVA?

Anything in the server_log?

Sagle

51 Posts

May 11th, 2009 12:00

No CAVA.

42 Posts

May 12th, 2009 02:00

are there any differences between the cifs servers? Like are they all using the same filesystem layout, using the same pools / disks?
Are they connected to different IP networks (maybe all GBit Eth, but the one with performance issues only Fast Eth?)
Are they in different domains / AD trees with different domain controllers?

51 Posts

May 12th, 2009 03:00

Everything is the same

Same Layout

Same Domain

Same IP Subnet

Same Hard Drive

That is why this makes no sense to me.

5 Practitioner

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274.2K Posts

May 12th, 2009 05:00

Martin,

Execute "server_netstat server_X -s" on the datamover. Look for data packets retransmitted.

You aren't saving the same document from the good and bad client to the same place are you? The clients aren't sharing the file you're testing with are they?

Collect a network trace using Wireshark off the good client while saving the file. Collect a network trace off the bad client while saving the file. Compare the 2 traces.

If you aren't comfortable with Wireshark and network traces, contact your area NSPEED representative.

90 Posts

May 12th, 2009 07:00

Are there any errors or messages in the server_log server_x command?
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