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issue with MPIO

  • 1.  issue with MPIO

    Posted Mon February 24, 2014 04:36 AM

    Originally posted by: dno25


    Hi All,

    I'm running into an issue when I execute> mpio_get_config -Av
    it return the following result:
    Frame id 1:
        Storage Subsystem worldwide name: 608e50018523200005265f2a
        Controller count: 2
        Partition count: 1
        Partition 0:
        Storage Subsystem Name = 'P720A'
            hdisk#           LUN #   Ownership          User Label
            hdisk2              11   A (preferred)      datavgA
            hdisk3              12   B (preferred)      backupvgA
    Frame id 0:
        Storage Subsystem worldwide name: 608e5002ca1f200005265f259
        Controller count: 2
        Partition count: 1
        Partition 0:
        Storage Subsystem Name = 'P720B'
            hdisk#           LUN #   Ownership          User Label
            hdisk4              13   A (preferred)      datavgB
            hdisk5              14   B (preferred)      backupvgB
     

    However, it also generated the following error log:

    DCB47997   0124093014 T H hdisk4         DISK OPERATION ERROR

    ---------------------------------------------------------------------------
    LABEL:          SC_DISK_ERR4
    IDENTIFIER:     DCB47997
     
    Date/Time:       Fri Jan 24 09:30:28 TAIST 2014
    Sequence Number: 848
    Machine Id:      00F8BCE54C00
    Node Id:         FBP720B
    Class:           H
    Type:            TEMP
    Resource Name:   hdisk4          
    Resource Class:  disk
    Resource Type:   mpioapdisk
    Location:        U78AA.001.WZSJWXM-P1-C3-T1-W20140080E52C64B4-LD000000000000
    VPD:             
            Manufacturer................IBM     
            Machine Type and Model......1814      FAStT 
            ROS Level and ID............31303630
            Serial Number...............
            Device Specific.(Z0)........0000053245085032
            Device Specific.(Z1)........
     
    Description
    DISK OPERATION ERROR
     
    Probable Causes
    MEDIA
    DASD DEVICE
     
    User Causes
    MEDIA DEFECTIVE
     
    Recommended Actions
    FOR REMOVABLE MEDIA, CHANGE MEDIA AND RETRY
    PERFORM PROBLEM DETERMINATION PROCEDURES
     
    Failure Causes
    MEDIA
    DISK DRIVE
     
    Recommended Actions
    FOR REMOVABLE MEDIA, CHANGE MEDIA AND RETRY
    PERFORM PROBLEM DETERMINATION PROCEDURES
     
    Detail Data
    PATH ID
               0
    SENSE DATA
    0A00 2A00 1EE0 BE20 0000 1004 0000 0000 0000 0000 0000 0000 0102 0000 7000 0600 
    0000 009E 0000 0000 2904 0000 0000 0000 0100 0000 0000 0000 0000 0000 0000 0000 
    0008 3600 002A 001E E0BE 2000 0010 0400 0000 0000 0000 0000 5351 3230 3930 3037 
    3435 2020 2020 2020 0784 4600 000D 0000 0900 0000 0000 0000 0000 0000 0000 0000 
    0000 0000 0000 0005 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
    0000 0000 0000 0000 0000 06B8 C34F 3031 3233 3134 2F32 3032 3233 0000 0000 0000 
    0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 1282 
    40D9 0082 0080 
    ---------------------------------------------------------------------------

    Can't figure out why? Can anyone help me out?

    Thanks~


    #AIX-Forum


  • 2.  Re: issue with MPIO

    Posted Tue March 11, 2014 06:08 PM

    Originally posted by: GarlandJoseph


    That error suggests the following...

    Jan 24 09:30:28 hdisk4     T SC_DISK_ERR4        path  0 WRITE(10)        (1EE0BE20,0010) CHECK UNIT ATTENTION; DEVICE INTERNAL RESET


    SC_DISK_ERR4 implies he controller has reset itself due to an internal error condition This error above is an indication that there's something going on the storage side that should be reviewed

     

    How frequently is this happening.  How many paths to hdisk4 (lspath -l hdisk4)?  Are you sure that error is generated everytime you do the query?

     


    #AIX-Forum


  • 3.  Re: issue with MPIO

    Posted Wed March 12, 2014 02:22 AM

    Originally posted by: dno25


    Hey, Garland, 

     

    Thanks for replied, however, storage manager didn't show any errors, but I'll check again.

    I didn't check how many paths to hdisk4, I will have to check.

    But I'm sure that everytime when I execute mpio_get_config -Av, that error is generated.


    #AIX-Forum


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