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allaboutunix's avatar
allaboutunix
Level 6
9 years ago

Jeopardy state Query

Hi Team,

 

I have a query,If I have a 2 node cluster set up( S1 -S2) and system S2 went into the state of Jeopardywhat would be the impact on the service group if

a) SG has no critical resources setup

b) SG has critical resource set up

What would be the steps to rectify the this Jeopardy state.

 

Please guide.

 

Thanks..

 

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  • Sunil_Yadav's avatar
    Sunil_Yadav
    9 years ago

    Hi Allaboutunix,

     

    If I/O fencing is not enabled, and system enters in jeopardy state, then ServiceGroups are auto-disabled on that system. Thus, ServiceGroups will not online/failover/switchover on/from that particular system. This is irrespective of whether SGs has critical resources or not.

    If I/O fencing is enabled, no impact on SGs if system enters in jeopardy state.

    System enters jeopardy state when only last link is left active. Restore other links and system will recover from jeopardy.

     

    Thanks & Regards,

    Sunil Y

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  • Sunil_Yadav's avatar
    Sunil_Yadav
    Level 4
    9 years ago

    Hi Allaboutunix,

     

    If I/O fencing is not enabled, and system enters in jeopardy state, then ServiceGroups are auto-disabled on that system. Thus, ServiceGroups will not online/failover/switchover on/from that particular system. This is irrespective of whether SGs has critical resources or not.

    If I/O fencing is enabled, no impact on SGs if system enters in jeopardy state.

    System enters jeopardy state when only last link is left active. Restore other links and system will recover from jeopardy.

     

    Thanks & Regards,

    Sunil Y

  • Marianne's avatar
    Marianne
    Level 6
    9 years ago

    You may want to start reading here:

    https://sort.symantec.com/public/documents/via/7.0/solaris/productguides/html/vcs_admin/ch09s07s01.htm 

    Automatic failover actions explained in the vcs_admin guide will only apply to SG with critical resources.

    SG without critical resources will never failover automatically - jeopardy or no jeopardy. 

    You can read up about failover actions in the admin guide under these topics:

    About cluster membership and data protection without I/O fencing 

    About cluster membership and data protection with I/O fencing