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Power Business Continuity and Automation

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Auto detect disk problem(I/O error) then takeover

  • 1.  Auto detect disk problem(I/O error) then takeover

    Posted Mon March 28, 2011 07:04 AM

    Originally posted by: RyanChen


    Dear all :

    Environment
    AIX v6.1
    HACMP v6.1 fixpak4
    - two node (node A , node B)
    - one resource group ( boot+service IP ) , two adapter each node
    - one shared VG (normal VG) on SAN environment , two adapter each node

    Base on my HACMP v5 experience , to test ip network takeover with unplug all cable on node A,
    -> HACMP detect network down event
    -> stop resource on node A
    -> start resoure on node B
    In other words , *resource group will failover from node A to node B cause by network down*(ether network).

    But if do same test with shared VG environment (SAN). The HACMP will NOT trigger any event. that mean HACMP did NOT protect all I/O failed on one node.

    my question is if I do same test with unplug all SAN fibre cable within node A :
    1. if HACMP support auto detect shared VG (I/O error) problem then takeover resource to standby node ?
    2. if yes , How to configure HACMP for above requirement ?
    by the way : there are NO any error notification now. and shared VG is normal VG (not enhance concurrent)
    #PowerHA-(Formerly-known-as-HACMP)-Technical-Forum
    #PowerHAforAIX


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