O.k Over the last few days I was able to test the throughput from a couple different servers experiencing this problem. Here is what I have found.
I have verified that that ports my servers are connected to (on the backbone) are 100/meg Full Duplex. Also the server NIC card is set to 100/meg Full Duplex. So we can rule out Duplex mis-match errors between the NIC and the Switch. I used FTP to transfer several 1 GIG files to my AIX backup machine and I am still getting the same performance. I have preformed this task on several machines and found that my throughput is that same as the backups. At most I am getting 700kb/sec. I also transferred files to a GIG E card and a 100/meg Full Duplex card in the AIX backup server. Still the same result. Not much changed in speed. Any other suggestions on what could be going on here. I am not giving up:) Chad -----Original Message----- From: PINNI, BALANAND (SBCSI) [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 06, 2001 4:36 PM To: [EMAIL PROTECTED] Subject: Re: NT Performance Problem with Tivoli Client 3.7.x Jeff Is ur network NIC using autoneg mode.Keep it to 100 full duplex.(I mean in configuration).Not NIC specification wise. Pl don't increase MTU Size.Else Cisco will break down them into smaller components before transmission.This is not good. Also see that u have applied patches to TSM Client s/w and there are no memory leaks. Balanand -----Original Message----- From: Johnn D. Tan [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 06, 2001 3:02 PM To: [EMAIL PROTECTED] Subject: Re: NT Performance Problem with Tivoli Client 3.7.x I agree with Jeff -- if your clients are setup for 100 FD, you need to make sure the ports they are connected to on the switch are also 100 FD. johnn On Tuesday, November 6, 2001, at 09:24 AM, Jeff Bach wrote: > Even a 100 Base T can handle 10 clients at better than 1 Meg per second. > The rate below is 163 KB/sec. > > I would suspect alignment issues. Check the switch/hub for alignment > errors. Make sure all switch ports are also hard-coded to 100FD. > > Go back to the basics. Check FTP throughput. Narrow it to a network > issue > and trouble shoot it as one. > > MTU size when I checked is limited to 1500 on Cisco equipment. Not > sure if > this has changed recently, but if the switch has to break things down, > there > isn't any gain in changing it (I would suspect). > > As a network issue, try a different type network card, reinstall the > driver, > check NT tuning parameters. I have seen all of these cause issues. > > Jeff Bach > Home Office Open Systems Engineering > Wal-Mart Stores, Inc. > > WAL-MART CONFIDENTIAL > > > -----Original Message----- > From: <James> <healy> [SMTP:[EMAIL PROTECTED]] > Sent: Monday, November 05, 2001 8:19 AM > To: [EMAIL PROTECTED] > Subject: Re: NT Performance Problem with Tivoli Client > 3.7.x > > Chad, > Are you sure that your backup is going across the GIG e > network? > > > > > "Gent, Chad E." <[EMAIL PROTECTED]>@VM.MARIST.EDU> on > 11/05/2001 > 07:29:03 AM > > Please respond to "ADSM: Dist Stor Manager" <ADSM- > [EMAIL PROTECTED]> > > Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> > > > To: [EMAIL PROTECTED] > cc: > > Subject: Re: NT Performance Problem with Tivoli Client 3.7.x > > > Hey Guys, > > Thanks for the help. I add the following changes to my dsm.opt > file. > > LARGECOMmbuffers Yes > TCPBuffsize 31 > TCPNodelay Yes > TCPWindowsize 63 > > Still not much of a change. Does any one have any other > Ideas. I > have > attached some information from dsmsched.log info to this post. > This > will > show you the network transfer rate. I guess I could just put a > sniffer on > this box and see what its doing. But the main point is I have > 10 > servers > just like this one. Is there any settings I check on the AIX > box? > > 11/05/2001 03:40:55 --- SCHEDULEREC STATUS BEGIN > 11/05/2001 03:40:55 Total number of objects inspected: 659,189 > 11/05/2001 03:40:55 Total number of objects backed up: 156 > 11/05/2001 03:40:55 Total number of objects updated: 0 > 11/05/2001 03:40:55 Total number of objects rebound: 0 > 11/05/2001 03:40:55 Total number of objects deleted: 0 > 11/05/2001 03:40:55 Total number of objects expired: 4 > 11/05/2001 03:40:55 Total number of objects failed: 1 > 11/05/2001 03:40:55 Total number of bytes transferred: 3.24 > GB > 11/05/2001 03:40:55 Data transfer time: > 20,832.29 sec > 11/05/2001 03:40:55 Network data transfer rate: 163.10 > KB/sec > 11/05/2001 03:40:55 Aggregate data transfer rate: 101.13 > KB/sec > 11/05/2001 03:40:55 Objects compressed by: 0% > 11/05/2001 03:40:55 Elapsed processing time: 09:19:54 > 11/05/2001 03:40:55 --- SCHEDULEREC STATUS END > 11/05/2001 03:40:55 --- SCHEDULEREC OBJECT END NTSERVERS > 11/04/2001 > 18:00:00 > 11/05/2001 03:40:55 Scheduled event 'NTSERVERS' completed > successfully. > 11/05/2001 03:40:56 Sending results for scheduled event > 'NTSERVERS'. > 11/05/2001 03:41:00 Results sent to server for scheduled event > 'NTSERVERS'. > > 11/05/2001 03:41:00 Querying server for next scheduled event. > 11/05/2001 03:41:00 Node Name: MDCAL3 > 11/05/2001 03:41:00 Session established with server ADSM: > AIX-RS/6000 > 11/05/2001 03:41:00 Server Version 3, Release 7, Level 4.0 > 11/05/2001 03:41:00 Server date/time: 11/05/2001 03:45:11 > Last > access: > 11/04/2001 18:25:11 > > Thanks In Advance > > Chad Gent > Legg Mason Network/Server Support > [EMAIL PROTECTED] > > > > -----Original Message----- > From: Joshua S. Bassi [mailto:[EMAIL PROTECTED]] > Sent: Thursday, November 01, 2001 5:00 PM > To: [EMAIL PROTECTED] > Subject: Re: NT Performance Problem with Tivoli Client 3.7.x > > > Actually on NT 4.0 make this line read: > > TCPWindowsize 63 > > > -----Original Message----- > From: Gent, Chad E. [mailto:[EMAIL PROTECTED]] > Sent: Thursday, November 01, 2001 2:49 PM > To: [EMAIL PROTECTED] > Subject: NT Performance Problem with Tivoli Client 3.7.x > > > Hello, > > I have 10 NT 4.0 clients backing up to a AIX TSM Server running > version > 3.7.2.4. These NT clients are configured to backup to a GIG E > card > in > the > AIX server (should be plenty fast enough). Each client is > setup for > 100 > mb > Full duplex on their network card. No auto-negotiate. My > clients > are > getting very poor network performance. Lets take one clients > unparticular. > It backs up about 15 GB a night but only gets a Aggregate > Transfer > Rate > of > 50.25 KB/second. The Network Transfer rate is about 4,000 > KB/second. > Is > there anyway for me to get a higher Aggregate rate? I need > these > machines > to backup faster. Can I tweak MTU setting or something for > NT? Any > help is > greatly appreciated. Below is my option file from 1 of my > clients. > > Chad Gent > Legg Mason Network/Server Support > [EMAIL PROTECTED] > > NODENAME MDCAL3 > TCPSERVERADDRESS aixbackup_g.leggmason.com > Resourceutilization 1 > Exclude "*:\...\ea data. sf" > Exclude "*:\...\pagefile.sys" > Exclude "*:\...\ibmbio.com" > Exclude "*:\ibmdos.com" > Exclude "*:\msdos.sys" > Exclude "*:io.sys" > Exclude "*:\...\system32\config\*.*" > Exclude "*:\...\system32\config\...\*" > Exclude.dir "C:\winnt\profiles" > backupregistry yes > PASSWORDACCESS GENERATE > DOMAIN ALL-LOCAL > > > ********************************************************************** > This email and any files transmitted with it are confidential > and intended solely for the individual or entity to > whom they are addressed. If you have received this email > in error destroy it immediately. > ********************************************************************** >
