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MC/ServiceGuard, IBM Shark and SDD

 
Sherry Strohmeyer
New Member

MC/ServiceGuard, IBM Shark and SDD

Is anyone aware of an HP "Service Guard Support Matrix" I have a copy of the ibm ESS support matrix that shows IBM's ESS is supported in an MC Service Guard ENV however, not when using IBM's SDD virtual path software. This IBM doc is from this month but I would like to see something from HP on this.

Thanks
5 REPLIES 5
Geoff Wild
Honored Contributor

Re: MC/ServiceGuard, IBM Shark and SDD

This is the only thing I can find:

http://docs.hp.com/hpux/onlinedocs/4076/SG%20SGeRAC%20EMS%20Support%20Matrix_10-3-03.htm

You will probably have to contact your HP Account Rep or place a Software Support service call.


Rgds...Geoff
Proverbs 3:5,6 Trust in the Lord with all your heart and lean not on your own understanding; in all your ways acknowledge him, and he will make all your paths straight.
John Poff
Honored Contributor

Re: MC/ServiceGuard, IBM Shark and SDD

Hi,

I can confirm this. We run an MC/SG cluster with two nodes that used to be attached to an IBM ESS Shark disk array. We heard that SDD wouldn't work in an MC/SG cluster and that is correct. We tried it and it failed. The SDD software replaces your cXtXdX disk devices with vpath1, vpath2, etc. These vpathXX devices are fine with LVM on a standalone box, but MC/SG doesn't like them, and the cluster configuration will complain about them and fail. One reason why we now live on an XP1024 disk array.

Been there, tried that, still got the Shark fin. :)

JP
melvyn burnard
Honored Contributor

Re: MC/ServiceGuard, IBM Shark and SDD

The IBM SHARK array can be used in a Serviceguard cluster, but os not officially "supported". This means it may work ok, but then again may not. It has not been tested by the division responsible for Serviceguard, hence it is not "supported".
My house is the bank's, my money the wife's, But my opinions belong to me, not HP!
Gord Moore
Frequent Advisor

Re: MC/ServiceGuard, IBM Shark and SDD

See page 13 of the IBM interoperability guide.

http://www.storage.ibm.com/disk/ess/pdf/interop.pdf

SDD is not supported on ServiceGuard. PVLinks works fine.

Jasja Verbeek
Occasional Advisor

Re: MC/ServiceGuard, IBM Shark and SDD

Hi,

We have several sharks connected to our clusters. it's not "supported" by HP , but we got "support" from IBM that it should work. (without SDD !)

We have different kinds of sharks.

I don't know what will happen when there's a firmware upgrade or something and the disk connections are gone...

Good luck,

Jasja