Raminder,
If I read this right you are seeing 17mb/sec sustained in a single backup 
session - correct?  Is this going direct to tape, or are you using a disk pool?

Steve Schaub
Haworth, Inc
email: Steve.Schaub AT Haworthinc DOT com

>>> raminder.braich AT DAVEY DOT COM 01/26 3:03 PM >>>
Steve
    Our Environment
       TSM Server:  Netfinity 5500R 2 processors, 1 GB RAM, Giga bit,
WIN200, TSM4.1
   CLient:  NEtfinity 7000 4 processors, 1GB RAM, WIN NT, ORACLE7.3.4 ~
360GB TSM4.1
 Cisco network switch.
 Our backup time is a litlle over 6 hours approx 17 MB/sec.  Previously on
TSM 3.7 we used to see max 11MB/sec but with TSM 4.1 and WIN2000 it is 17M
/sec.

Raminder

> -----Original Message-----
> From: Mills, John [SMTP:John_Mills AT PURINAMILLS DOT COM] 
> Sent: Friday, January 26, 2001 2:31 PM
> To:   ADSM-L AT VM.MARIST DOT EDU 
> Subject:      Re: Achievable throughput using Gigabit connections?
>
> Steve,
>
>    We have seen our database restore reach speeds of about 25 MB/s
> across a gigabit connection, but a more realistic average was 12-15MB/s.
> 80 GB/hr is about 23 MB/s, and we could see that if our disk were striped
> in an ideal situation.
>
> John
>
> > -----Original Message-----
> > From: Steve Schaub [SMTP:Steve.Schaub AT HAWORTH DOT COM] 
> > Sent: Friday, January 26, 2001 8:11 AM
> > To:   ADSM-L AT VM.MARIST DOT EDU 
> > Subject:      Achievable throughput using Gigabit connections?
> >
> > I am looking to find out what kind of mb/sec other shops are getting.
> Our
> > environment is:
> > AIX 4.3.3 Server (3466-C00 = H50 2cpu, 1gb mem, 2-gbit ethernet, 1-100mb
> > ethernet) running TSM 3.7.3.8
> > 3494 library using 3590E drives with 3590K tapes
> > Switch is Cisco 6509 on a dedicated vlan segment
> > Client is HP V2200 (16cpu, 12gb mem, 1gbit ethernet dedicated to backup
> > vlan) running TSM 3.7.2 under HP-UX 11.0
> >
> > Specifically, when we try to archive a 100gb Oracle database on the HP
> (as
> > a file system with approx 450 files, not using EBU/RMAN, residing on an
> > EMC 3700 Symmetrix), we are seeing aggregate throughput in the 6-7mb/sec
> > range, which translates into approx 4.5hrs.  When we watch the Aix
> > monitor, the gbit interface varies from 15 down to 1.5mb/sec.  The cpu
> > never goes over 20%.  The consultant who helped us get this installed &
> > setup claims that a business down the street with almost identical
> > hardware/software is able to get a single backup stream to do 80gb/hr.
> So
> > far we have involved HP, Tivoli, Aix, Cisco, EMC and almost every techie
> > in our shop without being able to find a conclusive answer as to where
> our
> > bottleneck is.
> >
> > Are other shops seeing anything close to 80gb/hr in a single stream
> using
> > gb to gb ethernet connections?  Any pointers as to where to look, or
> > recommended tools for at least diagnosing the problem?  Thanks in
> advance.
> >
> > Steve Schaub
> > Haworth, Inc
> > email: Steve.Schaub AT Haworthinc DOT com