OA56333: IEC331I 050-018 ON ANY ZFS LOCATED ON R/O DASD IOEZ00336I READ.DASD COULD NOT BE MARKED AS A ZFS AGGREGATE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customers receive IEC331I 050-018 on any zFS located on R/O
  DASD,
  
  IOEZ00336I READ.DASD could not be marked as a zFS aggregate in
  the catalog, rc=50 rsn=18
  
  The error does not stop mount processing. The file system is
  mounted and accessible to users.
  
  This failure is reported after installing PUT1708. No failure is
  reported prior to that maintenance level.
  
  The complete set of messages displayed along with this error
  are,
  
  IOS000I 1A06,78,WRI,E7,0200,,00020000,VTIGYJ,CATALOG , 465
   8002000000000000000000000000000000000000D2800F00000040E20000000
  0
   PREFIX PARAMETER LIST DATA =  01C00080000000000000000000C00000
                                 0000004C0002000000020000D3227B43
                                 6368758780FF0000000000003F800001
                                 00020000000200000329100000130002
                                 80000000
  IEC331I 050-018(00201110,VTIGYJ),ZFS,ZFS,VMMC,IGG0CLE2
  IEF196I IEC331I 050-018(00201110,VTIGYJ),ZFS,ZFS,VMMC,IGG0CLE2
  IOEZ00336I IGY610.ZFS could not be marked as a zFS aggregate in
  the catalog, rc=50 rsn=18
  BPXF013I FILE SYSTEM IGY610.ZFS WAS SUCCESSFULLY MOUNTED.
  
  The rc=50 rsn=18 indicates:
  
  RETURN CODE 50 Explanation:
  An error has been detected in VVDS manager. There may be sfi
  information for this message. Message IEC331I might be produced
  for the error and can contain additional information (SFI) for
  diagnostic use.
  
  18 Explanation:
  An I/O error has been detected while accessing a VVDS record.
  This reason code results in message IEC161I being issued,
  which provides more information about the error. An SVC dump
  may also have been created, depending on the type of error that
  occurred.
  

Local fix

• None.
  
  The file system is mounted and accessible to users.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of the z/OS Version 2 Release 3                    *
  * FMID(HZFS430) ZFS filesystem.                                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * IOS000I, IEC331I, and IOEZ00336I                             *
  * messages are generated when zFS                              *
  * attempted to set a new "zfs" bit                             *
  * in the catalog. This bit was                                 *
  * introduced for z/OS V2R3.                                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * APPLY PTF                                                    *
  ****************************************************************
  zFS attempted to set a new "zfs" bit in the catalog when
  mounting an aggregate and the DASD on which the VVDS
  resided was read-only, resulting in the IOS000I, IEC331I,
  and IOEZ00336I messages.
  

Problem conclusion

• If a mount (or takeover) is made with the read-only option,
  zFS will longer attempt to set the old or the new zFS bits in
  the catalog, thus avoiding the IOS000I, IEC331I, and
  IOEZ00336I messages. If the mount/takeover is read-write,
  and the DASD is read-only, these messages can still occur.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• IOEFSKN
  

Fix information

• Fixed component name

  ZFS ZSERIES FIL

• Fixed component ID

  5696EFS00

Applicable component levels

• R430 PSY UA98802

     UP19/03/30 P F903

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.