Re: Gig utilization during backups
2006-09-11 02:54:53
Geoff,
Check these settings, they apply to 1Gig Ether.
original settings:
sb_max = 1048576
udp_recvspace = 42080
udp_sendspace = 9216
tcp_recvspace = 16384
tcp_sendspace = 16384
rfc1323=0
The following settings have been applied:
no -o sb_max=2097152
no -r -o sb_max=2097152
no -o udp_sendspace=65536
no -r -o udp_sendspace=65536
no -o udp_recvspace=65536
no -r -o udp_recvspace=65536
no -o tcp_recvspace=262144
no -r -o tcp_recvspace=262144
no -o tcp_sendspace=262144
no -r -o tcp_sendspace=262144
no -o rfc1323=1
no -r -o rfc1323=1
Hope this help...
Jacques van den Berg
TSM / SAP Storage Administrator
Pick 'n Pay IT
Email : jvandenberg AT pnp.co DOT za
Tel : 021 - 658 1711
Fax : 021 - 658 1676
Mobile : 082 - 653 8164
Dis altyd lente in die hart van die mens wat God
en sy medemens liefhet (John Vianney).
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Gill, Geoffrey L.
Sent: Friday, September 08, 2006 6:50 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] Gig utilization during backups
I'd like to get some input on what others see on their port utilization
during heavy network traffic. With 350+ systems backing up to a single
TSM
server I'm curious as to why we see only about 50% utilization on the
GIG
port with max scheduled sessions set to 95. Sessions run extremely long
compared to when they were on the old system.
What have others seen their systems and what do you have set for max
scheduled sessions?
I still feel like this system, which has 4 CPU's is not nearly as fast
at
moving data than my 2 CPU system was and the setup is very similar.
AIX 5.3 - TSM 5.3.3.0 - 4 CPU's - 4GB memory - Gig interface
Thanks,
Geoff Gill
TSM Administrator
PeopleSoft Sr. Systems Administrator
SAIC M/S-G1b
(858)826-4062
Email: <mailto:geoffrey.l.gill AT saic DOT com> geoffrey.l.gill AT saic DOT com
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