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cluster

Created: 30 Nov 2012 • Updated: 01 Dec 2012 | 6 comments
This issue has been solved. See solution.

Hi  ALL,

I have below queries regarding cluster configuration in NBU.

  1. Service gp ,cluster gp and NBU gp are all same thing?
  2. /usr/openv/netbackup/logs/cluster will show what messages if my node moves from active to passive i.e if switch over takes place.
  3. In below commands,what does lx21 is online and lx 22 offline nbu_group mean and aptareSG means? and cluster service?
  4. why cluster service is offline on lx21? 
  5. aptare SG offline on lx22?
  6. nbu_group lx22 is offline?

 

 

sudo ./hastatus -summary
 
-- SYSTEM STATE
-- System               State                Frozen
 
A  lx21         RUNNING              0
A  lx22         RUNNING              0
 
-- GROUP STATE
-- Group           System               Probed     AutoDisabled    State
 
B  ClusterService  lx21         Y          N               OFFLINE
B  ClusterService  lx22         Y          N               ONLINE
B  aptareSG        lx21         Y          N               ONLINE
B  aptareSG        lx22         Y          N               OFFLINE
B  nbu_group       lx21         Y          N               ONLINE
B  nbu_group       lx22         Y          N               OFFLINE
 
 
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g_lee's picture

1. The question is not clear. If you're asking if ClusterService, aptareSG, nbu_group are the same thing, then no. If you're asking about terminology then refer to the document linked below.

2. This isn't a question. Consider rephrasing to make your query clear.

3, 4, 5, 6. In the output provided:

- ClusterService is online/running on lx22 (so it is offline on lx21 as this is a failover group)

- aptareSG is online/running on lx21 and offline/not running on lx22

- nbu_group is online/running on lx21 and offline/not running on lx22

For failover groups, it is normal that the group is only online on one node at a time.

For parallel groups (for applications that run concurrently), then the group can be online on more than one node at a time, however this depends on how the group is configured.

If you want more details about cluster concepts and terminology, I would suggest the following document as a starting point

Veritas Cluster Server 6.0.1 (Linux) Administrator's Guide

https://sort.symantec.com/public/documents/sfha/6....

see Clustering concepts and terminology

If you are using a different platform/version, see the Product Guides for the relevant version under https://sort.symantec.com/documents

If this post has helped you, please vote or mark as solution

Marianne's picture

/usr/openv/netbackup/logs/cluster will show what messages if my node moves from active to passive i.e if switch over takes place.

In my 14 years of using NBU and clustering more NBU masters than I can remember, I have never used this log. You need to tell us what you see in this log folder.

NBU Clustered Master Server Admin Guide says:

 

■ Cluster configuration-related information is recorded in log.cc.<date> file, which is located at
/usr/openv/netbackup/logs/cluster. The configuration scripts creates the log directory, if it is not
present.
■ Cluster upgrade related information is recorded in trace.cluster_upgrade.<process_ID> file, which is located at /usr/openv/netbackup/logs/cluster.
■ Agent (Online/Offline/Monitor) related information is recorded inlog.<date> file, which is located at
/usr/openv/netbackup/logs/cluster
 
Also see your other post: https://www-secure.symantec.com/connect/forums/cluster-query 
 

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

Arun K's picture

Service gp ,cluster gp and NBU gp .

 

I have seen in a forum that service gp and cluster gp are same.

 

But what is this nbu_group DOES IN HASYSTEM COMMAND  DOES?

  1. When i go to /usr/openv/netbackup/logs/cluster logs.what it will show when failover has happened to other node.
Marianne's picture

No idea what you mean with this question.
1. There is no such command.
2. hasys command works at system/node level, not service group (nbu_group) level.

You have been given links to the manual - PLEASE USE it to understand concepts and terminology.
There is also a command reference section.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

Arun K's picture

so nbu_gp and service gp are same?

Marianne's picture

You have 3 Service groups:
ClusterService
aptareSG
nbu_group

I repeat:
Please read the manual for understanding of concepts and terminology.

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

SOLUTION