topic Re: HA Monitors question in Operating System - HP-UX

HA Monitors question

aaaA_4 — Thu, 18 May 2006 04:22:20 GMT

Hi folks,

I have a simple questions. Do I have to purchase HA monitors product separately or is it included in MC/ServiceGuard product licence? I use FOE with SG separately purchased product. Is HA monitors product the only way to use RESOURCE monitoring in packages (SG environment) or is it enough to have EMS framework installed?

Thank you,
N.

Re: HA Monitors question

Steven E. Protter — Thu, 18 May 2006 04:30:05 GMT

Shalom,

Monitor templates are included with Serviceguard.

That leaves you having to modify the templates to properly monitor the application package you wish to run in the cluster.

For complex situations like NFS or Oracle, add on packages including control scripts and monitors are available for purchase. They are not required but save you quite a bit of time.

SEP

Re: HA Monitors question

Chan 007 — Thu, 18 May 2006 05:10:47 GMT

Hi,

MC/Sg will monitor yor hardware. Also I agree with Stephen on scripts, even you can have you inbuild shell scripts for doing such things.

just for example to check the oracle from SA side, a small script that check pmon and either restart oracle on the same node or start the package on the next node.

e.g ps -ef |grep pmon | wc -l, of this is less then 1, then restart or start the package to the next server.

EMS are mostly installed to monitor in a large scale env.

Chan

Re: HA Monitors question

aaaA_4 — Thu, 18 May 2006 05:37:19 GMT

Thank you, but...

I have to repeat my last question.
Is HA monitors product the only way to use the RESOURCE (disk, VG, LV...) monitoring in packages (SG environment) or is it enough to have EMS framework installed?

N.

Re: HA Monitors question

Chan 007 — Thu, 18 May 2006 06:22:33 GMT

Hi,

I feel EMS is enough to handle normal environment, but in a Mission Critical HA monitors provide more provision and added features to monitor applications (DB), given a chance to choose between the two in a Test and Devl env I would go for EMS while in a Mission Critical (Prod) one HA monitors. Each and every thing is totally depends on the Organisation goal for efficiency to handle problems in going for the new products.

For more details between those two products please find the link
http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=319368

Chan

Re: HA Monitors question

Denver Osborn — Thu, 18 May 2006 06:58:52 GMT

No. You don't have to purchase the EMS-HA product in order to use RESOURCE monitoring in MC/SG packages. The EMS-HA product will allow you to have the pkg trigger on more falures (such as kernel resource and filesystem space... -vs- the base EMS product wich is a lot of H/W monitoring)

Aso far as I know, resource monitoring for LVM volume groups, physical and logical volumes is only with the EMS-HA product.

hope this helps,
-denver

Re: HA Monitors question

Stephen Doud — Thu, 18 May 2006 07:26:42 GMT

The HA Monitors product (B5736DA) provides the following special monitoring daemons

/etc/opt/resmon/lbin/clustermond
/etc/opt/resmon/lbin/fsmond
/etc/opt/resmon/lbin/lanmond
/etc/opt/resmon/lbin/mibmond
/etc/opt/resmon/lbin/pkgmond
/etc/opt/resmon/lbin/svcmond
/etc/opt/resmon/lbin/rdbmsmond
/etc/opt/resmon/lbin/diskmond

and partner dictionaries to enable Serviceguard to capture triggering events from the following new EMS resource classes:

/cluster/status
/cluster/concl
/cluster/package
/cluster/localNode

/system/filesystem/availMb

/net/interfaces/lan/status

/rdbms/server
/rdbms/database

/vg/vg??/lv
/vg/vg??/lv_summary
/vg/vg??/pv_pvlink
/vg/vg??/pv_summary

The volume group category permits (among other things) the administrator to configure an EMS Resource that can trigger a package to fail over if a pv_summary indicates that a volume group is no longer whole.

HP sells it because standard EMS does not provide these additional EMS resources.

To learn more, investigate HA Monitors documents located at this link:
http://docs.hp.com/en/ha.html#Event%20Monitoring%20Service%20and%20HA%20Monitors

Re: HA Monitors question

aaaA_4 — Thu, 18 May 2006 07:34:18 GMT

Thank you, I've got it.
N.