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  • 1.  HDLM drivers on AIX

    Posted Mon December 06, 2010 11:04 AM

    Originally posted by: chlawren


    Hi all,

    Please can someone give advise as I am not sure if the current configuration for our environment is quite correct.

    I am in the mindset that Native MPIO and HDLM can co-exist on a server however does this require the host attach script for HDLM?

    also can SDD and HDLM co-exist on a system and does the host attach need to be installed

    I have a server with Hitatchi and SVC Luns presented with SDD / HDLM / Native MPIO drivers:

    > lslpp -l DLManager.mpio.rte
    Fileset Level State Description
    Path: /usr/lib/objrepos
    DLManager.mpio.rte 5.94.0.102 COMMITTED Dynamic Link Manager

    Path: /etc/objrepos
    DLManager.mpio.rte 5.94.0.102 COMMITTED Dynamic Link Manager

    > lslpp -l devices.common.IBM.mpio.rte
    Fileset Level State Description
    Path: /usr/lib/objrepos
    devices.common.IBM.mpio.rte
    5.3.8.4 APPLIED MPIO Disk Path Control Module

    Path: /etc/objrepos
    devices.common.IBM.mpio.rte
    5.3.8.4 APPLIED MPIO Disk Path Control Module
    > lslpp -ha devices.sdd.53.rte
    Fileset Level Action Status Date Time
    Path: /usr/lib/objrepos
    devices.sdd.53.rte
    1.7.0.0 COMMIT COMPLETE 10/10/08 02:10:16
    1.7.0.0 APPLY COMPLETE 10/10/08 02:10:16

    Path: /etc/objrepos
    devices.sdd.53.rte
    1.7.0.0 COMMIT COMPLETE 10/10/08 02:10:19
    1.7.0.0 APPLY COMPLETE 10/10/08 02:10:19

    > lslpp -l devices.fcp.disk.ibm.rte
    Fileset Level State Description
    Path: /usr/lib/objrepos
    devices.fcp.disk.ibm.rte 1.0.0.11 COMMITTED IBM FCP Disk Device

    Path: /etc/objrepos
    devices.fcp.disk.ibm.rte 1.0.0.11 COMMITTED IBM FCP Disk Device
    does this configuration look ok?

    thanks

    Chris


  • 2.  Re: HDLM drivers on AIX

    Posted Mon December 06, 2010 11:56 AM

    Originally posted by: shargus


    I am in the mindset that Native MPIO and HDLM can co-exist on a server

    Yes, that is true. HDLM appears to work on top of MPIO, adding new load-balancing algorithms.

    however does this require the host attach script for HDLM?

    I am not aware of any scripts needed to get it working. For us, it just works.
    DLManager.mpio.rte 5.94.0.102 COMMITTED Dynamic Link Manager

    Your HDLM is pretty far out of date. They are up to 6.3 now.


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