why can not active the session,is the MODE define error?

[zhangych]

now,i define 40 local lu on a pu,when i deactive the session of one lu,i can
use the snaadmin deactive_session to deallocate the session with mode of
snavcmg and parrell.but when i active the session,return the
max_session_exceed error.it the mode define error?

[l***@attglobal.net]

Post by zhangych
now,i define 40 local lu on a pu,when i deactive the session of one lu,i can
use the snaadmin deactive_session to deallocate the session with mode of
snavcmg and parrell.but when i active the session,return the
max_session_exceed error.it the mode define error?

You should never deactivate the SNASVCMG session.
It is used by the sna nodes to negotiate the session
limits when new sessions are started.

The mode definition exists in at least two places and
may exist in several more. The minimum two are within
the two sna endpoint nodes. The mode may also be defined
on any intermediate ISR Network Nodes and the mode may
also be defined/overridden by the endpoint applications
(e.g. CICS). The SNASVCMG session is the path used to
negotiate the session values (max sessions, minconwinner,
minconloser, rusizes). If the mode definitions do not
agree then the lowest common values will be used.

How is the parrell mode defined on the target system?

You could try doing an initialize_session_limit or
reset_session_limit command before doing the activate_session.
That may restart the SNASVCMG session.

When the activate_session command failed was anything logged
in the /var/sna/sna.err file? Have you looked at a
link trace during the time of the activate_session
failure to see if CS/AIX even tried to contact the
target system to start the session.


Paul Landay