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07-15-2009 04:53 AM
07-15-2009 04:53 AM
General Help Needed
I would like to setup a two node cluster (hardware will be the same on both nodes).
The latest version of ServiceGuard that would run on a HP-UX 11.11 is 11.16 right?
The main node is running oracle and has a bunch of disk mounted off an HP XP Storage.
Could someone please tell me what needs to be done in order to create the cluster?
I have been reading some stuff regarding ServiceGuard, but because this is my first cluster and the the box (which would be the first node) is already on a production environment im afraid I might break things.
Is there any guide that tells you step-by-step what needs to be done in order to create an oracle cluster with ServiceGuard?
Help on this matter would be strongly appreciated.
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07-15-2009 04:59 AM
07-15-2009 04:59 AM
Re: General Help Needed
The latest version of ServiceGuard that would run on a HP-UX 11.11 is 11.16 right?
Yes.
http://docs.hp.com/en/6033/HPServiceguardClusterConfig_WP.pdf
Its a great doc. I am using it now.
Basic principle.
Each package needs its own volume group on shared storage which it activates at start up.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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07-15-2009 05:03 AM
07-15-2009 05:03 AM
Re: General Help Needed
Thanks a lot for the quick response.
Do you have any document that would explain how to set it up step by step on a UX box?
if the doc covers an oracle cluster, amazing.
I cant find any on the net, at least not a very intuitive one.
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07-15-2009 05:09 AM
07-15-2009 05:09 AM
Re: General Help Needed
There is no simple. step-by-step, how to create a cluster cookbook, other than the document SEP has pointed in the previous post. Clusters and the application packages running on them are so site specific, there is no easy way outline the process in such a document. Every site should have such document but it has to be created by the cluster's sysadmin as the cluster gets built.
My suggestion is to initially set up clusters on a totally non-production hardware, then shift your production instance into the newly formed cluster, leaving the standalone production system behind. The reason I am saying this, before you can certify a cluster, you will need to perform several tests regarding fail-over capabilities of your application, and some of these tests should involve, abruptly powering off the server. And since the results of this activity can be quite unpredictable, ending up taking your production system down (due to a tie breaking requirement or some other reason). You really do not want to do that, do you ?
I know it is a bit of a hassle and extra cost of finding hardware to setup brand new cluster but it is the best approach. What you can do is, you can match your new server to be clustered with the running prod system, match by an old clunker as the initial cluster setup. Once you are sure everything is in order, you can take a weekend downtime to install and test your cluster on the existing prod machine. As you might or might not know, serviceguard can run on different types and classes of hardware as long as the OS is the same on both machines.
HTH
UNIX because I majored in cryptology...
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07-15-2009 05:18 AM
07-15-2009 05:18 AM
Re: General Help Needed
Consider licensing this integration package. It is expensive, but after all, if you are (actually your company is) spending big bucks to protect a business critical asset like a database, I think adding a few thousand dollars to this expanse every year is well worth the money.
UNIX because I majored in cryptology...
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07-15-2009 05:37 AM
07-15-2009 05:37 AM
Re: General Help Needed
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07-15-2009 05:54 AM
07-15-2009 05:54 AM
Re: General Help Needed
http://docs.hp.com/en/B3936-90135/B3936-90135.pdf
Anyawys, where do I get ServiceGuard, on which media set / CD is it located?
I know we have purchased it, I just dont know where it might be.
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07-15-2009 06:32 AM
07-15-2009 06:32 AM
Re: General Help Needed
It should be there in your application CD. However you can check with swlist command once you mounted your cd.
#swlist -d @ /cdrom
This command will show the products available on mount point /cdrom.
Ganesh.
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07-15-2009 06:41 AM
07-15-2009 06:41 AM
Re: General Help Needed
UNIX because I majored in cryptology...
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07-15-2009 09:24 AM
07-15-2009 09:24 AM
Re: General Help Needed
Please check the MC/Service Guard is installed.
root # swlist | grep -i service
B3935DA A.11.09 MC / Service Guard
PHNE_23697 1.0 NTP timeservices upgrade plus utilities
PHSS_22683 1.0 MC/ServiceGuard and SG-OPS Edition A.11.09
PHSS_25499 1.0 MC/ServiceGuard and SG-OPS Edition A.11.09.
root # ps -ef | grep -i cmcld
root 2222 1 0 May 17 ? 17:57 /usr/lbin/cmcld -j
root 5322 4142 0 12:03:27 pts/ta 0:00 grep -i cmcld
And if MC/ServiceGuard License is not installed install the Software CODE Word trough sam.
Than Install & Configure the Cluster Step by Step.
Node #1
-------
# strings /etc/lvmtab
# pvcreate /dev/rdsk/c10t0d5
# vgcreate /dev/dsk/c10t0d5 vg01
# mkdir /dev/vg01
# mknod /dev/vg01/group c 64 0x010000
# vgchange -a n vg01
# vgexport -v -p -s -m /tmp/vg01.map vg01
# rcp /tmp/vg01.map node2:/tmp/vg01.map
Node #2
-------
# mkdir /dev/vg01
# mknod /dev/vg01/group c 64 0x010000
# vgimport -v -s -m /tmp/vg01.map vg01
# vgchange -a n vg01
Node #1
-------
# cd /etc/cmcluster
# cmquerycl -C /etc/cmcluster/cmclconfig.ascii -n node1 -n node2
# vi cmclconfig.ascii
# cmcheckconf -C /etc/cmcluster/cmclconfig.ascii
# cmapplyconf -C /etc/cmcluster/cmclconfig.ascii
# rcp /etc/cmcluster/cmclconfig.ascii node2:/etc/cmcluster/cmclconfig.ascii
# cmviewcl
# cmruncl
# cmviewcl
===============================================================================
How to make package for cluster
# cd /etc/cmcluster
# mkdir db_pkg as_pkg
# cmmakepkg -p /etc/cmcluster/db_pkg/dbcrmis.conf
# cmmakepkg -s /etc/cmcluster/db_pkg/dbcrmis.cntl
# cmmakepkg -p /etc/cmcluster/as_pkg/ascrmis.conf
# cmmakepkg -s /etc/cmcluster/as_pkg/ascrmis.cntl
# vi /etc/cmcluster/db_pkg/dbcrmis.conf
# vi /etc/cmcluster/db_pkg/dbcrmis.cntl
# vi /etc/cmcluster/as_pkg/ascrmis.conf
# vi /etc/cmcluster/as_pkg/ascrmis.cntl
# cmcheckconf -v -C /etc/cmcluster/cmconfig.ascii -P /etc/cmcluster/db_pkg/dbcrmis.conf
# cmapplyconf -v -C /etc/cmcluster/cmconfig.ascii -P /etc/cmcluster/db_pkg/dbcrmis.conf
# cmcheckconf -v -C /etc/cmcluster/cmconfig.ascii -P /etc/cmcluster/as_pkg/ascrmis.conf
# cmapplyconf -v -C /etc/cmcluster/cmconfig.ascii -P /etc/cmcluster/as_pkg/ascrmis.conf
Node#2
------
# mkdir /etc/cmcluster/as_pkg db_pkg
Node#1
------
# rcp /etc/cmcluster/db_pkg/dbcrmis.* node2:/etc/cmcluster/db_pkg/dbcrmis.*
# rcp /etc/cmcluster/as_pkg/ascrmis.* node2:/etc/cmcluster/as_pkg/ascrmis.*
# cmviewcl
# cmruncl -v
# cmviewcl
# cmrunpkg dbcrmis
# cmrunpkg ascrmis
# cmviewcl
Thanks