Highlighted
Silva Trusted Contributor.
Trusted Contributor.
635 views

Standby Cell manager

Jump to solution

Hello,

Just an question does DP have a function working as a standby server for keeping the production running wihout corrupt while doing the upgrade / migratation? Any idea would be appreciate,

Thanks in advanced

0 Likes
1 Solution

Accepted Solutions
Micro Focus Expert
Micro Focus Expert

Re: Standby Cell manager

Jump to solution

Hi @Silva,

The quick answer is no.

There is a Standby CM concept, but the goal is different. It targets on replacing a failed Cell Manager quickly with a prepared standby system.

You can build a clustered Cell Manager on Windows, Linux and HP-UX. But upgrades still require to stop the sessions and shutdown the services at the point of the upgrade. But it can help to provide an fallback in case the upgrade fails on a node (this applies to Linux and HP-UX only, because a clustered Windows CM will always upgrade all nodes at the same time).

Regards,
Sebastian Koehler

---
Please use the Like button below, if you find this post useful.

View solution in original post

4 Replies
Micro Focus Expert
Micro Focus Expert

Re: Standby Cell manager

Jump to solution

Hi @Silva,

The quick answer is no.

There is a Standby CM concept, but the goal is different. It targets on replacing a failed Cell Manager quickly with a prepared standby system.

You can build a clustered Cell Manager on Windows, Linux and HP-UX. But upgrades still require to stop the sessions and shutdown the services at the point of the upgrade. But it can help to provide an fallback in case the upgrade fails on a node (this applies to Linux and HP-UX only, because a clustered Windows CM will always upgrade all nodes at the same time).

Regards,
Sebastian Koehler

---
Please use the Like button below, if you find this post useful.

View solution in original post

Silva Trusted Contributor.
Trusted Contributor.

Re: Standby Cell manager

Jump to solution

Dear Sebastian,

Thanks for your information. 

You mean in this case I can build CM as cluster node on the MSCS? If I build two machine HP-UX as CM on the cluster node, then if upgrade on the primary node fail, does all the DP service automatically failover to secondary CM node or we have to start manually?

0 Likes
Micro Focus Expert
Micro Focus Expert

Re: Standby Cell manager

Jump to solution

Hello Silva,

My first comment - always have an IDB backup and have your CM fully documented. Whatever happen, you can restore and recover.

Upgrade or migration (?) is a major activity and I am afraid this is an activity that will make your CM OFFLINE and so all activities (backups, restore, etc) will have to be suspended (OFF). This is why this has to be planned and then scheduled.

Hope this helps

Rgds,

Sherman

DP Support

 

 

Micro Focus Expert
Micro Focus Expert

Re: Standby Cell manager

Jump to solution

Hi @Silva,


@Silva wrote:

 

If I build two machine HP-UX as CM on the cluster node, then if upgrade on the primary node fail, does all the DP service automatically failover to secondary CM node or we have to start manually?


No, it won't be automatic. The upgrade is performed one node at a time on HP-UX and Linux. If you have the choice go for RHEL or SLES with HPE Serviceguard.

As long as the IDB does not gets corrupted there is a quick way back. Having an IDB backup is the absolute minimum to prepare for an upgrade. IIn addition you can also create a Disk Array Snapshot of the shared disk where the IDB is stored.

Regards,
Sebastian Koehler

---
Please use the Like button below, if you find this post useful.
The opinions expressed above are the personal opinions of the authors, not of Micro Focus. By using this site, you accept the Terms of Use and Rules of Participation. Certain versions of content ("Material") accessible here may contain branding from Hewlett-Packard Company (now HP Inc.) and Hewlett Packard Enterprise Company. As of September 1, 2017, the Material is now offered by Micro Focus, a separately owned and operated company. Any reference to the HP and Hewlett Packard Enterprise/HPE marks is historical in nature, and the HP and Hewlett Packard Enterprise/HPE marks are the property of their respective owners.