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We have an issue with "DFH540.ZFS" during the IPL,Could you please help us to resolve the issue.

  • 1.  We have an issue with "DFH540.ZFS" during the IPL,Could you please help us to resolve the issue.

    Posted Mon June 27, 2022 01:36 AM

    Hi Team,

    We have an issue with "DFH540.ZFS" during the IPL ,later after IPL we have tried to mount manually but we are getting the below error. Could you please help us to resolve the issue.

    BPXF274I FILE SYSTEM DFH540.ZFS 867
    FAILED TO MOUNT.
    RETURN CODE = 00000072, REASON CODE = EF186058



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    Bujjireddy Regalla
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  • 2.  RE: We have an issue with "DFH540.ZFS" during the IPL,Could you please help us to resolve the issue.

    Posted Tue June 28, 2022 09:37 AM
    If you issue this command from TSO:  BPXMTEXT EF186058 you will get an explanation of the reason code. There are a few possible reasons for this error. Post the output of the D OMVS,F,N='DFH540.ZFS ' command, if you want additional help. 

    Mike


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    Mike Shorkend
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  • 3.  RE: We have an issue with "DFH540.ZFS" during the IPL,Could you please help us to resolve the issue.

    Posted Tue June 28, 2022 09:38 AM

    Hi, TSO BPXMTEXT EF186068 

    zFS Wed Jan 19 13:01:58 EST 2022
    Description: HFS-compat mount, - error attaching aggregate or was found not to
    be HFS-compat.

    Action: Ensure that the HFS compatibility mode aggregate that is being MOUNTed
    has a single read-write file system and the file system name is the same as
    the aggregate name (that is, the VSAM Linear Data Set name). This can also
    mean that you attempted to move ownership of a zFS sysplex-aware read-write
    file system to a system that does not support zFS sysplex-aware (that is, it
    is z/OS V1R12 but is running sysplex=off). This is not allowed. A mount of a
    zFS file system that fails with return code 138 (ENXIO) can indicate that the
    file system is already mounted on another system that is not in the same
    sysplex but is sharing DASD accessibility. zFS prevents data corruption by not
    allowing a zFS file system to be mounted read-write on two systems that are
    not in a shared file system environment. In this case, verify that the file
    system is not already mounted read-write on another system. zFS prevents a
    system from writing to a zFS aggregate that is mounted read-write on another
    system. Another possible cause is the VSAM linear data set was not formatted

    as a ZFS file system. Also, look in the system log for messages from other
    z/OS components related to this aggregate (data set) name. Otherwise, contact
    the service representative.
    ***



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    Roland Schiradin
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  • 4.  RE: We have an issue with "DFH540.ZFS" during the IPL,Could you please help us to resolve the issue.

    Posted Wed June 29, 2022 02:00 AM
    Hi Roland,

    Thanks for the information. I have got the same issue mentioned on the thread after the IBM maintenance.
    https://community.ibm.com/community/user/ibmz-and-linuxone/discussion/issue-on-cics-starting#bm1dbd7720-c35d-407f-8f5f-b37d5c2b9e9e

    During the IPL I have got the error message for re specifying USSHOME, so I have cancelled the region and I though I can look at the mount issue later on from TSO

    DATA INVALID FOR 'USSHOME'. RESPECIFY KEY
    WORD AND DATA OR BYPASS WITH '.END': '/usr/lpp/cicsts/cicsts54    


    From TSO I saw that /usr/lpp/cicsts/cicsts54 is not having required files under it and also observed that "DFH540.ZFS" is not mounted.So I have tried to mount  "DFH540.ZFS" to the path  /usr/lpp/cicsts/cicsts54 but I am getting the error "EF186058".
    Here is the mount command:
    MOUNT FILESYSTEM('DFH540.ZFS')
    TYPE(ZFS)
    MODE(READ) MOUNTPOINT('/usr/lpp/cicsts/cicsts54')

    And here is the MVS DISPLAY command output:
    ----------------------------------------------------------------
    -D OMVS,F,N='DFH540.ZFS'
    BPXO042I 00.42.57 DISPLAY OMVS 761
    OMVS 000F ACTIVE OMVS=(OM,OZ,SV,90,MS,IF,IE,ID,7C,67,I
    'DFH540.ZFS' NOT FOUND
    -----------------------------------------------------------

    And I have looked at my SYSLOG , I see this error for DFH540.ZFS,could you please check once.
    -----------------------------------------------------------------------------------------------------------
    IOEZ00001E zFS I/O error 2101520 occurred for aggregate DFH540.ZFS
    IOEZ00002E MMRE error id=31 cis=11 if=80 of=5 buf=506511D000 CI=0
    IOS000I 1A11,58,WRI,E7,0200,,07E40000,VDDFHI,ZFS , 448
    80020000000000000000000000000000000000005A000F00000040E000000000
    PREFIX PARAMETER LIST DATA = 01C0008C000000000000000000C00000
    0000004C07E4000007E4000000000000
    0000000080FE0000000000003F800001
    07E4000007E400000106100000130002
    80000000
    IOS000I 1A11,5A,WRI,E7,0200,,00020000,VDDFHI,CATALOG , 449
    80020000000000000000000000000000000000005A000F00000040E000000000
    PREFIX PARAMETER LIST DATA = 01C00080000000000000000000C00000
    0000004C000200000002000000000000
    0000000080FF0000000000003F800001
    0002000000020000043B100000130002
    80000000
    IOS000I 1A11,5A,WRI,E7,0200,,00020000,VDDFHI,CATALOG , 450
    80020000000000000000000000000000000000005A000F00000040E000000000
    PREFIX PARAMETER LIST DATA = 01C00080000000000000000000C00000
    0000004C000200000002000000000000
    0000000080FF0000000000003F800001
    0002000000020000043B100000130002
    0002000000020000043B100000130002
    80000000
    IEC331I 050-018(00201110,VDDFHI),ZFS,ZFS,VMMC,IGG0CLE2
    IEF196I IEC331I 050-018(00201110,VDDFHI),ZFS,ZFS,VMMC,IGG0CLE2
    IEF196I IEC251I 037(050,018,IGG0CLE2)-006,ZFS,ZFS,SYS00098,,,DFH540.ZF
    IEF196I IEC251I DFH540.ZFS.DATA,CATALOG.DFH540
    IEC251I 037(050,018,IGG0CLE2)-006,ZFS,ZFS,SYS00098,,,DFH540.ZFS, 453
    IEC251I DFH540.ZFS.DATA,CATALOG.DFH540
    IOEZ00953E Media Manager return code 00000008 disconnecting aggregate
    456
    DFH540.ZFS.







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    Bujjireddy Regalla
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