It's been mentioned that it is probably the RAID5 on your TSM storage pool.
To rule out TSM, simply do a FTP from the client to the same disks on the
server and see what throughput you get.



-----Original Message-----
From: Vin Yam [mailto:vyam AT QBCT DOT COM]
Sent: Tuesday, October 29, 2002 7:16 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: HELP! Faster Restore than Backups over Gigabit?


Hi,

We just installed Gigabit fiber NICs and an isolated gigabit fiber switch.
Our restores have increased dramatically from 31.81 GB/hr (8.84 MB/s) to 56
GB/hr (15.6 MB/s).  The backups are still around 35.5 GB/hr (9.8 MB/s).  The
TSM server is very powerful (NT 4.0 SP6a Dual 1.8 Ghz P4 w/ 4GB RAM, 150 GB
RAID array) and the clients are (Netware 4.2 Quad XEON P3 w/ 4 GB RAM).
(We've tried changing the TCPWindow Size in our dsmserv.opt from 63 to 2048
with no effect) We're running TSM 5.1.1.4 server and TSM 4.2.3 netware
client.   Any
ideas?  Please email me direct if you have any suggestions or need more
information.  Thanks.

DSM.OPT settings

** TSM TWEAKS **
COMPRESSION NO
LARGECOMMBUFFERS YES
MEMORYEFFICIENTBACKUP NO
PROCESSOR 20
RESOURCEUTILIZATION 10

TXNB 2097152

TCPB 32
TCPNodelay YES
TCPWindowsize 64
** TSM TWEAKS **

managedservices schedule webclient
schedmode prompted

-Vin
vyam AT qbct DOT com