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remote group resource question

mokkan
Level 6
Certified

I'm trying to understand the remotegroup concepts.  Is it designed to monitor remote service group?  For an example if we setup cluster 1 in on location and cluster 2 in another location, we can monitor cluster 1 service group from cluster2? And other way?

1 ACCEPTED SOLUTION

Accepted Solutions

Gaurav_S
Moderator
Moderator
   VIP    Certified

Hello,

Yes, that is the concept of remote group agent & remote group resource. When you create a remotegroup resource in cluster, you need to define the cluster name & service group name which you want to monitor.

Typically this is used when you have interdepencies in cluster, for e.g you can configure remotegroup resource in an application cluster which will monitor the database service group in a database cluster.

Here is an e.g

https://sort.symantec.com/public/documents/sf/5.1/aix/html/vcs_admin/ch_vcs_config_resources12.html

more details can be found

https://sort.symantec.com/public/documents/sfha/6.0/linux/productguides/html/vcs_admin/ch07s04.htm

 

 

G

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4 REPLIES 4

Gaurav_S
Moderator
Moderator
   VIP    Certified

Hello,

Yes, that is the concept of remote group agent & remote group resource. When you create a remotegroup resource in cluster, you need to define the cluster name & service group name which you want to monitor.

Typically this is used when you have interdepencies in cluster, for e.g you can configure remotegroup resource in an application cluster which will monitor the database service group in a database cluster.

Here is an e.g

https://sort.symantec.com/public/documents/sf/5.1/aix/html/vcs_admin/ch_vcs_config_resources12.html

more details can be found

https://sort.symantec.com/public/documents/sfha/6.0/linux/productguides/html/vcs_admin/ch07s04.htm

 

 

G

mokkan
Level 6
Certified

Thank you very much. Service group status managed by WAC ?

 

 

mikebounds
Level 6
Partner Accredited

No WAC is not used - you configure the RemoteGroup resource with a Username and Password to communicate with the other cluster.

The RemoteGroup resource can also be used to control (online and offline) a service group as it has 3 control modes:

 

■ OnOff
The RemoteGroup resource brings the remote service group online
or takes it offline.
When you set the VCSSysName attribute to ANY, the SysList
attribute of the remote service group determines the node where
the remote service group onlines.
 
MonitorOnly
The RemoteGroup resource only monitors the state of the remote
service group. The RemoteGroup resource cannot online or offline
the remote service group.
Make sure that you bring the remote service group online before
you online the RemoteGroup resource.
 
■ OnlineOnly
The RemoteGroup resource only brings the remote service group
online. The RemoteGroup resource cannot take the remote service
group offline.
When you set the VCSSysName attribute to ANY, the SysList
attribute of the remote service group determines the node where
the remote service group onlines.
Also the service group does not have to be in a remote cluster, it can be in the same cluster - the use case for this is where the dependencies can't be defined using the limitations of service group depencies (like a parent group can't have 2 children)
 
Mike

 

 

Clifford_Barcli
Level 3
Employee Accredited Certified

I would also recommend using a Virtual Business Service (VBS) available in 6.0 and later.   Remote SGs were created to help with cross-cluster dependencies (SGs that exist in different clusters).  VBS extends that to model to n-tier applications that exist on any platform VCS or AppHA supports.  VBSs are much easier to configure and offer more flexibilty.   See the VCS guides for details.  NOTE: to configure (not RUN) a VBS, one must use VOM.  VBS also allows for day to day opperations and monitoring of the "service" instead of just the point applicaiton.  As most services are made up of many moving parts, it becomes important to manage to the service, not just the databvase or application.

 

Cheers