Topic
  • 4 replies
  • Latest Post - ‏2012-08-24T13:59:48Z by ynhh.aixtech
ynhh.aixtech
ynhh.aixtech
3 Posts

Pinned topic Manual fiber channel failover

‏2012-08-23T17:25:01Z |
Aside from pulling the fiber cable or shutting down the vio server, is there a way to manually fail over the active fiber channel path from one vio server to the other?
Updated on 2012-08-24T13:59:48Z at 2012-08-24T13:59:48Z by ynhh.aixtech
  • unixgrl
    unixgrl
    25 Posts

    Re: Manual fiber channel failover

    ‏2012-08-23T18:29:11Z  
    There should be a way to disable an entire path via your multipathing software. For example, with powerpath you could disable one entire HBA which should then cause the client LPARs to start using the path from the other VIO server.
    In powerpath you'd try "powermt disable hba=0" to shutdown the first adapter. MPIO has similar functionality.
  • ynhh.aixtech
    ynhh.aixtech
    3 Posts

    Re: Manual fiber channel failover

    ‏2012-08-23T18:38:53Z  
    • unixgrl
    • ‏2012-08-23T18:29:11Z
    There should be a way to disable an entire path via your multipathing software. For example, with powerpath you could disable one entire HBA which should then cause the client LPARs to start using the path from the other VIO server.
    In powerpath you'd try "powermt disable hba=0" to shutdown the first adapter. MPIO has similar functionality.
    Exactly. But I can't find it anywhere.
    We have 2 vio servers with 1 fc on each going to an SVC and then to an XIV. We are supporting multiple clients via npiv. We used to use vscsi and then it was just a matter of changing the priority of the path on the client.

    I've scoured the net to no avail...
  • kamdard
    kamdard
    1 Post

    Re: Manual fiber channel failover

    ‏2012-08-23T21:03:06Z  
    Exactly. But I can't find it anywhere.
    We have 2 vio servers with 1 fc on each going to an SVC and then to an XIV. We are supporting multiple clients via npiv. We used to use vscsi and then it was just a matter of changing the priority of the path on the client.

    I've scoured the net to no avail...
    If you are using SDDPCM then you can try
    $> pcmpath set adapter <N> online/offline
    Regards,
    kamdard.
  • ynhh.aixtech
    ynhh.aixtech
    3 Posts

    Re: Manual fiber channel failover

    ‏2012-08-24T13:59:48Z  
    • kamdard
    • ‏2012-08-23T21:03:06Z
    If you are using SDDPCM then you can try
    $> pcmpath set adapter <N> online/offline
    Regards,
    kamdard.
    That's it - thanks Kamdard