IBM RS/6000 SP, Problem Determination Manual

Page: 177 / 316

This soft copy for use by IBM employees only.
sigforce = 0
display = 1
waittime = 20
grpname =
″
hb
″
Turning on debug merely changes the ODM attribute for stdout and refreshes the
relevant daemon. Follow the next example, substituting the partition name in
order to redirect output to a file:
# odmget -q
″
subsysname=hb.spcws
″
SRCsubsys > <filename>
# cp /etc/objrepos/SRCsubsys /etc/objrepos/SRCsubsys.orig
# odmdelete -q
″
subsysname=hb.spcws
″
-o SRCsubsys
Edit <filename>, and change the stdout and stderr to a file where the data is to
go, then:
# odmadd <filename>
# stopsrc -s hb.spcws
# startsrc -s hb.spcws
There are no specific heartbeat log files, so this method may come in useful if
you are experiencing problems that cannot readily be resolved. It is worth
looking at the file:
/var/adm/SPlogs/SPdaemon.log
since there may be a reference to the heartbeat here.
The host_responds daemon does have a specific log, which is:
/var/adm/SPlogs/spmon/hr.log
The heartbeat daemons can provide information to the VSD daemons had and
hcd
if they are installed. The heartbeat daemons will start up with the
-p1
flag
set if they are required to wait for these VSD daemons. Otherwise, the heartbeat
daemons get started with the
-p0
flag and this operation is bypassed. The
examples given earlier in the chapter show how this can be viewed in the
process table.
5.6 Resource Manager Reorganization
It was mentioned earlier that Resource Manager gets partitioned also. In fact
Resource Manager views each system partition as a separate logical partition.
Each partition that runs a Resource Manager has a completely separate
configuration file called:
jmd_config.<syspar_name>
Each partition has its own primary and backup Resource Manager. As a result,
nodes can only be allocated to resource pools within their own partition.
The
jm
commands all run against the partition specified by the SP_NAME
variable. This variable can be set to whichever partition the commands need to
be run against.
There is no difference in the methods used to resolve Resource Manager
problems on a partitioned system except that care needs to be taken so that the
SP_NAME is set to the partition you are experiencing problems with.
Chapter 5. System Partitioning
157