We had similar problems, especially when copying files and with Microsoft Office products. We solved these problems by making two changes in our configuration. We have a 4-port 10/100 VIF with channeling on our Cisco switch. The default gateway was set for the VIF subnet on the switch. We also had ("had" is the key word here!) the e0 interface set up on a different subnet than the VIF. There was a problem with the switch determining the proper gateway for the e0 interface since the filer can only have one default gateway. Once we disabled the e0 interface performance improved for clients who were on remote (T1 linked) subnets. We still had a problem for some users when they tried to copy files from the filer. We found that these users were on 10/100 ports that were set to full duplex, 100Mb port speed. We changed the setting to half duplex, 100Mb port speed and that solved the problem for these users. We currently have over 2000 user home directories and group shares on the filer with excellent performance at our primary sites and at our 40 T1-linked sites. Maybe this will help with some of your problems.

-----Original Message----- From: Geert Jackers [mailto:gj@pandora.be] Sent: Wednesday, January 30, 2002 1:33 PM To: toasters@mathworks.com Subject: CIFS Performance.

Hi,

we have F740 and F820 running only CIFS. We hear everywhere that the performance is great of these boxes. We installed the latest 6.1.1R2 (I think) which would solve some problems with virusscanning (trendmicro) on the boxes and clients. When we read a file (doc file) it is somewhat fast, but when we save it it takes twice as long as on a NT box. When we do the same with a RTF file....or TXT it is much faster. Not to say when opening or working with outlook and .pst files on that share, it takes forever.....almost. We see that when we open a file on the box a ~file is created on the same directory too, can this have an influence ? A copy from a file to and from the box....also slow.

We have a 100 Mbit switched network and 1 Gbit links to the filers....other traffic on the network is fast etc. We disabled viruschecking on the filer and the pc's...no difference.

Do we need to tune or set special parameters on the filer ? Somebody has had the same experience....?

Please any info is appreciated.

Geert

Geert Jackers Siemens Business Services Belgium