Forum Discussion

allaboutunix's avatar
allaboutunix
Level 6
10 years ago

Plan for DIMM replacement activity(VCS nodes)

Hi Team,

 

We have to replace DIMM on the passive node in which VCS services is currently not running.The cross over LLT cables   is badly hanged wih each other and Symantec engineer told us that he will manage the cable issue and no require to down the active node.

Kindly guide step by step procedure  for this activity,also please suggest the prerequisities before starting this activity.

This is very very crucial activity as Class A application is running on the active node.

Currently, SG is running in Sydney server.We have to perform activity on Madagascar server.

-- SYSTEM STATE
-- System               State                Frozen

A  Sydney              RUNNING              0
A   Madagascar            RUNNING              0

-- GROUP STATE
-- Group           System               Probed     AutoDisabled    State

B  ClusterService  Sydney              Y          N               ONLINE
B  ClusterService   Madagascar              Y          N               OFFLINE
B  ORA_SG_Group   Sydney             Y          N               ONLINE
B  ORA_SG_Group   Madagascar          Y          N               OFFLINE

 

 

Kindly suggest as soon as possible.

Thanks in advance..

 

Allaboutunix

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  • Sunil_Yadav's avatar
    Sunil_Yadav
    10 years ago

    Affirmative.

     

    DIMM is planned on Madagascar server, and no service group is active on it. Steps mentioned in our last comment will suffice. You need not do anything on Sydney server.


    Thanks & Regards,
    Sunil Y

  • Sunil_Yadav's avatar
    Sunil_Yadav
    Level 4
    10 years ago

    Hi,

     

    DIMM is planned on Madagascar server. With current cluster state, there is no active service group on Madagascar server. Thus, nothing very crucial/specific required as prerequisite.

     

    However, you can freeze the Madagascar server. Freezing Madagascar will prevent any accidental failover(either user initiated or automated) of service groups.

     

    For freezing:

    # hasys -freeze –persistent Madagascar

    After successful completion of DIMM, you should unfreeze it.

    For unfreezing:

    # hasys –unfreeze –persistent Madagascar

     

    Thanks & Regards,

    Sunil Y

  • allaboutunix's avatar
    allaboutunix
    Level 6
    10 years ago

    As this is critical server.. so Please confirm on this,

    Do I need to do anything in Sydney server in which vcs services are running?

     

     

    OR

    just need to do, Freezing and unfreezing of VCS services in madagascar.

     

    For freezing:

    # hasys -freeze –persistent Madagascar

    After successful completion of DIMM, you should unfreeze it.

    For unfreezing:

    # hasys –unfreeze –persistent Madagascar

     

  • Sunil_Yadav's avatar
    Sunil_Yadav
    Level 4
    10 years ago

    Affirmative.

     

    DIMM is planned on Madagascar server, and no service group is active on it. Steps mentioned in our last comment will suffice. You need not do anything on Sydney server.


    Thanks & Regards,
    Sunil Y

  • allaboutunix's avatar
    allaboutunix
    Level 6
    10 years ago

    Thanks.. Sunil Appreciate your help to resolve this issue.I have completed this activity without any issues.

    Thanks again!!