disabling scsi polling on tape

[PSS SYS ADMIN]

Hi everyone,
I need to know if there's a way to disable hw scsi polling on tape on an hpux 11.11 box.
I need to know:
- if there's hw monitoring that probes for the dm_stape and I want to disable it
- if there's a sw that detect hw probe on a tape device on hpux 11.11

Regards...
PSS

[Devender Khatana]

Hi,

You can do monconfig command to achive this.

/etc/opt/resmon/lbin/monconfig

Also resls to list the currently monitored resources. Have a look at man pages for detailed information.

HTH,
Devender

[PSS SYS ADMIN]

How can I remove the tape monitoring?

[James George_1 · Accepted solution]

Hi

See the procedures below ...


How to stop an EMS Monitor (dm_stape)

ANSWER :

â ¢ # /etc/opt/resmon/lbin/monconfig

â ¢ Select (K)ill (disable) monitoring. Then (Q) uit

â ¢ # cd /usr/sbin/stm/uut/bin/tools/monitor
# mkdir ./org
# mv ./dm_stape ./org

This moves the executable for the daemon to directory org.
We can restore the monitor if necessary by moving the file back.

â ¢ # cd /etc/opt/resmon/dictionary
# mkdir ./org
# mv ./dm_stape.dict ./org
This moves the dictionary entry for dm_stape to the directory org.
We can restore the monitor if necessary by moving the file back.

â ¢ #cd /var/stm/data/tools/monitor
# mkdir ./org
#mv ./dm_stape.hwa ./org

This moves the dm_stape.hwa file to the directory org.
We can restore the monitor if necessary by moving the file back.

â ¢ Start MONCONFIG (repeat step 2)
# /etc/opt/resmon/lbin/monconfig

â ¢ Inside this window select (E)nable Monitoring

How to disable a hardware device from being monitored.


ANSWER

â ¢ # /etc/opt/resmon/lbin/monconfig

â ¢ Select (K)ill (disable) monitoring. Then (Q) uit

â ¢ # vi /var/stm/data/tools/monitor/disabled_instances (one text line per device)
/storage/events/disks/default/8_12.0.0 (for example)
(see /var/adm/syslog/syslog.log file to have instances)

â ¢ Start MONCONFIG (repeat step 2)
# /etc/opt/resmon/lbin/monconfig
Inside this window select (E)nable Monitoring
Then select (C)heck detailed monitoring status

The resource class that you disabled should show up in the list with no description of
what to do with events


How to tell when EMS is polling devices


PROBLEM

How can you tell when EMS(Event Monitoring Service) is polling the devices connected to the system ?

RESOLUTION

EMS polls devices every 60 minutes per default. This is defined in the file

/var/stm/config/tools/monitor/Global.cfg:

POLL_INTERVAL 60 # in minutes (one hour)

This value can be overwritten by editing the poll interval in the monitor specific configuration file :

/var/stm/config/tools/monitor/monitor_name.cfg.

After EMS is started when the system boots,it will poll devices at every poll interval.EMS startup is recorded in :

/var/opt/resmon/log/event.log.

EMS does not create an entry in a log file entry unless it detects an event while polling a device. It does not start any process or daemon for polling.Polling is part of the EMS monitor processes which are started as soon as EMS is enabled.

You should see activity for the EMS hardware monitor processes while polling occurs.These processes run under the path name :

/usr/sbin/stm/uut/bin/tools/monitor.

The command ps -ef or performance measurement products should show activity while polling occurs.You cannot force polling to occur. The monitor process will automatically wake up at each poll interval, reread its configuration file and poll devices.If the poll interval is not defined in the monitor configuration file, the global configuration file Global.cfg applies.


Rgds / James

[PSS SYS ADMIN]

Can I apply this procedure on a cluster HPUX11i?

[James George_1]

Hi

Sure, you can do it on cluster.

James