Measuring shared memory

[Simon R Wootton]

Running HP11i on an RP7410 machine. Following the recent installation of Data Protector on the above machine, it appears that I'm running out of shared memory and therefore unable to open the application. Sometimes, I'm unable to run SAM and get the same error messages, but closing some of the system applications (eg. test systems) allows me to run SAM successfully.

The error messages were diagnosed by a seperate forum question and I have now increased the amount of shared memory on the machine from 128Mb to 160Mb. Unfortunately, I am still unable to run Data Protector.

Is there any way to measure the amount of shared memory being used by the machine in real time ? Also, is there anything else I can do to release shared memory to try and run Data Protector without having to increase it further which means another reboot on a machine that runs 24x7 ??

All help will be rewarded, thanks in advance.

Regards
Simon

[Alex Glennie · Accepted solution]

I'd try the following it might work :

omnisv.sh -stop

/opt/omni/lbin/crs -clshm
/opt/omni/lbin/crs -shutdown
omnisv.sh -start

as to measurement : glance ? or shminfo (hp utility - would require a call to local Response Centre)

[Simon R Wootton]

Thanks for the reply Alex, can you please advise what these commands do before I issue them on a live server ?

Regards
Simon

[Sanjiv Sharma_1]

Hi Simon,

Please check this document:
http://www.openview.hp.com/sso/ecare/getsupportdoc?docid=OV-EN015876

hth.

[Sanjiv Sharma_1]

Hi Simon,

You can issue these commands on your live server w/o any concern. These commands will clear the shared memory and start the Data Protector.

[Simon R Wootton]

Hi Sanjiv

Thanks for the response. You say the commands clear shared memory - what about the other live applications using the shared memory - will they be affected ??

Regards
Simon

[Geoff Wild]

You can do a
ipcs -m
to Display information about active shared memory segments.

man ipcs for more info.

Rgds...Geoff

[Alex Glennie]

as to other live applications ... no affect just clears out/down the shared memory in use by DP/OBII in the case of memory leaks etc ...

appologies been busy today

[Sundar_7]

Hi Simon,

Download the attached shminfo.sh which can be used to accurately determine the shared memory segments in use.

Sundar.