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To upgrade SG to A.11.18 ( four node Metro cluster)

 
HP-UX_Ali
Regular Advisor

To upgrade SG to A.11.18 ( four node Metro cluster)

Hello Experts,

I have scenario for four node in which i have to configure Metro Cluster.

I have already setup DR site with latest SG-A.11.18 and created local cluster.

In Primary site (which is production) Only serviceguard extension for rac is installed and i have to install Service guard A.11.18 for Metro & serviceguard extension for rac to latest version addition to this i have to re-organize the filesystem.

Now the issue is, Its very critical system (Primary site). Its very hard to get downtime for long hours ( To upgrade both nodes to Latest Sg & patches ..etc).
What will be the best way to perform the upgrade with minimul down time.

Your Reply to this issue will be appreciated.

Thanks & Regards
Ali...

5 REPLIES 5
Rita C Workman
Honored Contributor

Re: To upgrade SG to A.11.18 ( four node Metro cluster)

You might considering getting on of the servers out of the existing SG/rac environment and use this node to create a single node cluster with MC/SG 11.18.

Once you have this up and running, you can then remove another node and add it to the new cluster and so on.

Doing these one at a time, gives you better control and allows for more options with scheduling downtime. It also divides the workload in case you run into an issue, since you will have fewer boxes/packages to look at for each phase.

Just a thought,
Rita
Rita C Workman
Honored Contributor

Re: To upgrade SG to A.11.18 ( four node Metro cluster)

sorry typo:

You might considering getting on of the servers out of the

Should read..

You might consider getting one of the servers out of the ....
HP-UX_Ali
Regular Advisor

Re: To upgrade SG to A.11.18 ( four node Metro cluster)

Hello Rita,

Thanks for quick response

but the issue is i have to go with management too. It will be good if i take both the servers at a time and Install & upgrade but what if any thing goes wrong when upgrading both the servers & configuring METRO cluster, then i have to add the time for revert back to orginal state too.


IF you have any idea to do the upgrade in minimul downtime, pls confirm.

Thanks.....

Regards
Ali
HP-UX_Ali
Regular Advisor

Re: To upgrade SG to A.11.18 ( four node Metro cluster)

Hello Rita,

One more thing, how it is possible DR- with 2 nodes & primary with 1 node MC/SG and again how i will add 2nd Node after upgrade & patches in MC/SG.
There is note in Metro-Rac docs online deletion & adding required same amount of nodes on both sites.

Pls confirm..

Thanks
HP-UX_Ali
Regular Advisor

Re: To upgrade SG to A.11.18 ( four node Metro cluster)

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Closing the thread and starting a new one.