topic Re: diagnostics tool to check memory in Operating System - HP-UX

diagnostics tool to check memory

Houston Kemper — Tue, 10 Sep 2002 15:48:52 GMT

Hello forum,

Is anyone aware of a diagnostics tool/utility that can be run to check memory?

Thanks

Re: diagnostics tool to check memory

Cheryl Griffin — Tue, 10 Sep 2002 15:53:53 GMT

It depends on how you want to check memory. What information are you wanting to see?

There's Glance (available by trial) and then GlancePlus.

# dmesg
(there is a physical memory section)

# swapinfo -tam

Cheryl

Re: diagnostics tool to check memory

Uday_S_Ankolekar — Tue, 10 Sep 2002 15:55:13 GMT

Hello,

Use glance or GUI version gpm
Top will also show you
swpainfo will give you information on swap memory

Re: diagnostics tool to check memory

S.K. Chan — Tue, 10 Sep 2002 15:55:19 GMT

STM is the usual tool for this .. I like "cstm" (the ascii version). Typically ..
# /usr/sbin/cstm
.. in CSTM prompt you would ..
cstm> map
cstm> sel dev
cstm> exc
cstm> map
=======> Look at the status of the "exc" (exerciser) to make sure it has completed before you proceed. It'll say 100% when done.
cstm> eal
cstm> efl
cstm> einf

The best thing for you to do is in cstm mode enter "he" to list the tools/commands available.

Re: diagnostics tool to check memory

Houston Kemper — Tue, 10 Sep 2002 15:58:24 GMT

Sorry for my somewhat vague question. I guess what I'm looking for is a tool that can check memory integrity. Our DBA team had an Oracle instance crash and Oracle is reccommending us to run a diagnostics on the memory. I'm sure I can get a CE to come out and run a physical check on the memory, but I'm wondering if there is a tool that can thrash the memory. Kind of like a 'dd if=/dev/dsk/xxxxxx of=/dev/null' for memory.

Thanks

Re: diagnostics tool to check memory

Pete Randall — Tue, 10 Sep 2002 15:59:23 GMT

Memory diagnostics are run during the boot process - you could re-boot to check your memory.

Pete

Re: diagnostics tool to check memory

harry d brown jr — Tue, 10 Sep 2002 16:04:51 GMT

Houston, this is the space shuttle, tell your DBA that if he/she spews out any more hot air, they'll be able to float their ideas to Mars.

Tell them you are waiting for HP to release the left handed mouse software for Glance.

live free or die
harry

Re: diagnostics tool to check memory

S.K. Chan — Tue, 10 Sep 2002 16:11:57 GMT

.. you would want to run the "exerciser" on the memory then .. (see my suggestion)..
My comment .. if you don't see any error in ..
# /usr/sbin/cstm
.. in CSTM prompt you would ..
cstm> map
cstm> sel dev
cstm> info
cstm> infolog

.. then don't bother to run "exc" because any error condition on the memory should be flagged in "infolog" already.

Re: diagnostics tool to check memory

Sandip Ghosh — Tue, 10 Sep 2002 16:48:09 GMT

If you are having Online Diagnostics installed, you can run stm or xstm. You can check the logs over there that if there was any failure or not.

Sandip

Re: diagnostics tool to check memory

Jon Hansen_1 — Wed, 11 Sep 2002 11:47:46 GMT

Here is a program written in C for this. It checks memory and swap. It has been passed around by other people. (Thanks to whomever wrote it.)