I learned something today;

No matter how many times someone tells you a particular item has
definitley, 100% absoloutley been configured correctly, go and check.
Having LANFREECOMMMETHOD actually set to TCPIP can create the misleading
impression that TSM is using TCPIP to communicate between stagent and
client on the same host even though LANFREECOMMMETHOD is set to
SHAREDMEM.


...It turns out LANFREECOMMMETHOD was set to TCPIP. Fixing this has
greatly increased our throughput, and eased the stress on the TCP/IP
stack leading to more reliable session connections etc...

Matthew.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Richard Sims
Sent: Thursday, June 02, 2005 8:25 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Poor LanFree performance / mixed LAN xfer??

On Jun 2, 2005, at 8:41 AM, Warren, Matthew (Retail) wrote:

> We have made a little progress on this; it appears to be related to
> the
> fact the storage agent and the client use 127.0.0.1 to communicate on
> the same host, regardless of any COMMMEthod SharedMem options if the
> host O/S is not AIX. ...

COMMMethod can be bewildering in Storage Agent use, as I see in reading
APAR IC45593 (agent and server). Boy, does this stuff get complex...

    Richard Sims


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