Input (Database) is IBM ESS fiber-attached to the SAP DB server.
Running four sessions direct to tape - two sessions each on gigabit
ethernet.
RL-Compression enabled
5-way multiplexing

Four IBM 3580 LTO tape drives in a 3584 library (all SCSI attached)

SAP DB server is an 8-way S7A with 4 GB memory; TSM Server is a 4-way S7A
with 4 GB memory. Both systems get pushed to 0% idle during the backup.

We are not (yet) using jumbo frames on the Gigabit ethernet - may improve
performance by cutting some system overhead out.

We just switched to the LTO drives; prior to this, I was showing 45 MB/sec
to five DLT drives in an STK 9710 library, all the other config being the
same.

BKI0011I: Number of bytes left to be saved: 0 Bytes (0.0%) of 562.702 GB.

BKI0020I: End of backint program at: Thu Sep 13 21:42:21 2001.
BKI0022I: Average transmission rate was 212.429 GB/h (60.424 MB/sec).
BKI2019I: Compression ratio for backup was 1.23.
BKI0021I: Elapsed time: 02 h 39 min 11 sec.

Tom Kauffman
NIBCO, Inc

> -----Original Message-----
> From: Davidson, Becky [mailto:Becky.Davidson AT EGR DOT COM]
> Sent: Thursday, September 13, 2001 1:13 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: TDP SAP R/3
>
>
> Is anyone out there running TDP for SAP R/3 on a database
> over600 GB?  If so
> what does your performance look like and what kind of hardware are you
> using?
> Thanks
>
> Becky Davidson
> Data Manager/AIX Administrator
> EDS/Sara Lee Bakery Group
> voice: 314-259-7589
> fax: 314-877-8589
> email: becky.davidson AT egr DOT com
>