[ADSM-L] ANS1809W-messages using shared memory communication?
2014-07-08 03:26:25
Dear all,
i'm running in a problemw with two TSM servers, i do not understand:
both, TSM client and server are located on the same maschine and use
sharedmemory communication.
well, the performance is quite good, but i found several warnings
"ANS1809W - A session with the TSM server has been disconnected." in the
dsmerror log.
the explanation due to the IBM infocenter directs to network problems,
but shared memory does not use a network? or am I wrong?
so, that's why i do not understand what's the real problem.
i see those messages mostly on my windows servers, linux seems to have
much less of them, but some.
first i thought, there's correlation with the number of nodes accessing
but they appear when there're only a few nodes (four or five) and the
number does not increase if there are more nodes the same time.
i doubled the values for COMMTIMEOUT (now 600) and IDLETIMEOUT (60), but
it seems to have no effect.
neither "top" / "nmon" nor the windows performance monitor gives me a
hint, that the server are at their performance limits.
=> does anyone had the same problem?
=> any guess, what to do?
used systems:
1) Dell R610 (12 Cores, 48 GB RAM) with SLES 11 SP3, TSM 7.1.0 server
and client, backing up a 130 TB HSM filesystem using 28 dedicated nodes
2) Dell R620 ( 8 Cores, 48 GB RAM) with Windows 2008R2, TSM 7.1.0
server and client, backing up a 90 TB HSM filesystem using 16 dedicated
nodes
both servers act as a "gateway node" to the SAN-based HSM filesystem and
therefore have direct and local access to the filesystems to be backuped.
thanks & best regards
Bjørn
--
Bjørn Nachtwey <mailto:bjoern.nachtwey AT gwdg DOT de>
Arbeitsgruppe IT-Infrastruktur Tel. +49 551 201-2181
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