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  • How does RHEV update multipath.conf

    Posted on

    We are primarily a HDS shop and we have a /etc/multipath.conf that we have optimized and push out to our hosts via Satellite.  I recently spun up 2 nodes with RHEL 6.4 and then configured them to be RHEV Hypervisors, which replaced the multipath.conf.

    This is the resulting output (which may actually be correct)

    360060e801005dee0052fba9e0000002a dm-3 HITACHI,DF600F
    size=50G features='0' hwhandler='0' wp=rw
    |-+- policy='round-robin 0' prio=1 status=active
    | `- 3:0:0:1 sdc 8:32 active ready  running
    `-+- policy='round-robin 0' prio=0 status=enabled
      `- 5:0:0:1 sde 8:64 active ready  running

    excerpt from multipath.conf
    devices {
    device {
        vendor                  "HITACHI"
        product                 "DF.*"
        getuid_callout          "/sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/%n"
    }

     

    ***********************************************************

    I was expecting to see something like (both active/ready)

    ATLAS_0001 dm-3 HITACHI,DF600F
    [size=200G][features=0][hwhandler=0][rw]
    \_ round-robin 0 [prio=1][active]
     \_ 1:0:0:2 sdc 8:32  [active][ready]
     \_ 2:0:0:2 sdh 8:112 [active][ready]

     

    excerpt from multipath.conf

            device {
                    vendor "HITACHI"
                    product "DF600F*"
                    path_grouping_policy multibus
                    path_checker readsector0
                    getuid_callout "/opt/XXX/sysadmin/XXX_id -g -u -s /block/%n"
                    }
     

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