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Creating filesystem from HP 3PAR

Discussion in 'Red Hat and derivatives' started by anaigini, Mar 15, 2019.

  1. anaigini

    anaigini New Member

    Joined:
    Mar 15, 2019
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    Hi,

    I have a task of creating a few filesystems from external storage (HP 3PAR). The OS is RHEL 5.8.

    These are the WWN of the storage devices :

    Code:
    sht3par02 cli% showvv -host csixdb1 -d
    
    Id Name                  Rd Mstr  Prnt Roch Rwch PPrnt SPrnt PBlkRemain -------------VV_WWN------------- -----CreationTime------ Udid
    
    142 csixdb1-backup_temp.0 RW 1/0/-  ---  ---  ---  ---    --         -- 60002AC0000000000000008E0001EE00 2019-03-08 10:03:57 +08  142
    143 csixdb1-backup_temp.1 RW 0/1/-  ---  ---  ---  ---    --         -- 60002AC0000000000000008F0001EE00 2019-03-08 10:03:57 +08  143
    144 csixdb1-backup_temp.2 RW 1/0/-  ---  ---  ---  ---    --         -- 60002AC000000000000000900001EE00 2019-03-08 10:03:57 +08  144
    145 csixdb1-backup_temp.3 RW 0/1/-  ---  ---  ---  ---    --         -- 60002AC000000000000000910001EE00 2019-03-08 10:03:57 +08  145
    146 csixdb1-backup_temp.4 RW 1/0/-  ---  ---  ---  ---    --         -- 60002AC000000000000000920001EE00 2019-03-08 10:03:57 +08  146
    147 csixdb1-backup_temp.5 RW 0/1/-  ---  ---  ---   ---    --         -- 60002AC000000000000000930001EE00 2019-03-08 10:03:57 +08  147
    --------------------------------------------------------------------------------------------------------------------------------------
      6 total                                                             0
    sht3par02 cli%
    Attached is the multipath.conf file in the server.

    These were the steps I used for the OS to detect the disks :


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    Code:
    modprobe dm-multipath
    service multipathd start
    multipath -d (this will perform a dry to make sure you are happy with everything, fix anything that appears as a problem)
    multipath -v2 (commits the configuration)
    multipath -ll
    chkconfig multipathd on (make devices are configured after a reboot)
    The problem is there is no output for multipath -v2 and multipath -ll :

    Code:
    [[email protected] ~]# multipath -v2
    [[email protected] ~]#
    Code:
    [[email protected] ~]# multipath -ll
    [[email protected] ~]#
    Why doesn't the OS detect the multipath device? I need to know the name of the mapped device, then use that device name to create the filesystem using LVM (pvcreate, vgcreate, lvcreate).
     

    Attached Files:

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