Buffer manager messages (CSQP...)

    CSQP002I

    BUFFPOOL VALUE OUT OF RANGE

    Severity
    8

    Explanation
    One of the following commands has been issued incorrectly:

    • DEFINE BUFFPOOL(n)
    • ALTER BUFFPOOL(n)
    • DELETE BUFFPOOL(n)
    • DEFINE PSID(x) BUFFPOOL(n)

    The value of n is in the range 0 to 99.

    System action

    The command is ignored.

    System programmer response

    See MQSC commands for information about the command, and reissue the command correctly.

    CSQP003I

    PSID VALUE OUT OF RANGE

    Severity
    8

    Explanation
    One of the following commands has been issued incorrectly:

    • DEFINE PSID(x)
    • ALTER PSID(x)
    • DELETE PSID(x)

    The value of x must be in the range 0 through 99.

    System action

    The command is ignored.

    System programmer response

    See MQSC commands for information about the command, and reissue the command correctly.

    CSQP004E

    csect-name I/O ERROR STATUS ret-code PSID psid RBA rba

    Severity
    8

    Explanation

    An I/O error has occurred. ret-code is the return code from the Media Manager. psid is the identifier of the page set for which the error occurred and rba is the RBA (in hexadecimal) of the record on which the error occurred.

    System action

    The queue manager can be abended. For example, in the case of a failing MQGET or MQPUT, the queue manager is not terminated if the CSQP004E I/O error occurs during a IBM MQ API call. However, if the I/O error occurs during checkpoint processing, the queue manager is terminated.

    System programmer response

    See the MVS/DFP Diagnosis Reference manual for information about return codes from the Media Manager. If we do not have access to the required manual, contact the IBM support center, quoting the return code from the Media Manager.

    CSQP005I

    BUFFERS VALUE OUT OF RANGE

    Severity
    8

    Explanation
    One of the following commands has been issued incorrectly:

    • DEFINE BUFFPOOL(n) BUFFERS(x)
    • ALTER BUFFPOOL(n) BUFFERS(x)

    If the value of the LOCATION parameter is BELOW, the minimum value of buffers is 100 and the maximum value is 500,000. If the value of the LOCATION parameter is ABOVE then valid values are in the range of 100 to 999999999 (nine nines).

    System action

    The command is ignored.

    System programmer response

    Reissue the command correctly. The total number of buffers that it is possible to define in all the buffer pools is determined by the amount of storage available in the queue manager address space.

    CSQP006I

    LOG CHECKPOINT NAME log-name DOES NOT MATCH QUEUE MANAGER NAME qmgr-name

    Severity
    8

    Explanation

    An attempt to restart with a log from another queue manager was detected. The name recorded in the log during checkpoint does not match the name of the queue manager using that log for restart.

    System action

    Restart is abnormally terminated with completion code X'5C6' and reason code X'00D70102'.

    System programmer response

    Change the started task JCL procedure xxxxMSTR for the queue manager to name the appropriate bootstrap and log data sets.

    CSQP007I

    Page set x uses buffer pool n

    Severity
    0

    Explanation

    This message gives the buffer pool used by the specified page set.

    It is sent in response to a DEFINE PSID(x) command.

    CSQP009I

    PAGE RECOVERY STARTED FOR PAGE SET psid PAGE page-number

    Severity
    0

    Explanation

    An incomplete update operation was detected for page page-number of page set psid. The page is being restored to a consistent state from information on the log.

    Message CSQP010I will be issued when the page recovery operation has completed.

    CSQP010I

    PAGE RECOVERY COMPLETE FOR PAGE SET psid PAGE page-number

    Severity
    0

    Explanation

    An incomplete update operation was detected for page page-number of page set psid. The page has been restored to a consistent state from information on the log.

    CSQP011E

    CONNECT ERROR STATUS ret-code FOR PAGE SET psid

    Severity
    8

    Explanation

    An attempt to open a page set was unsuccessful. psid is the page set identifier and ret-code is the return code from the Data Facilities Product (DFP) CONNECT function.

    This can occur during queue manager startup, where the most likely cause is that there is no DD statement for the page set included in the queue manager started task JCL, or in response to a DEFINE PSID command used to add a page set dynamically.

    System action

    If this occurs during queue manager startup, MQ attempts to dynamically allocate the page set and retry the open, on the assumption that the DD statement for the page set is missing. Messages following message CSQI010I at the end of restart indicate whether the dynamic page set allocation was successful, or whether such page sets still remain offline.

    If the page set cannot be opened, the queue manager continues running, but we will be unable to access the data in that page set. You could encounter problems during restart, or when attempting to open a queue.

    System programmer response

    If applicable, ensure that there is a DD statement for the page set included in the queue manager started task JCL.

    If the page set cannot be opened, see the MVS/DFP Diagnosis Reference manual for information about return codes from the Media Manager. If we do not have access to the required manual, contact the IBM support center, quoting the return code from the Media Manager.

    CSQP012I

    DISCONNECT ERROR STATUS ret-code FOR PAGE SET psid

    Severity
    8

    Explanation

    An attempt to close a page set was unsuccessful. psid is the page set identifier and ret-code is the return code from the Media Manager.

    System action

    Queue manager shutdown continues, but some information might be missing from the page set. This will be corrected from the log during restart.

    System programmer response

    See the MVS/DFP Diagnosis Reference manual for information about return codes from the Media Manager. If we do not have access to the required manual, contact the IBM support center, quoting the return code from the Media Manager.

    CSQP013I

    csect-name NEW EXTENT CREATED FOR PAGE SET psid. NEW EXTENT WILL NOW BE FORMATTED

    Severity
    0

    Explanation

    Page set psid has been successfully dynamically expanded by creating a new extent.

    System action

    The new extent is formatted; message CSQI031I will be issued when formatting completes successfully.

    System programmer response

    The page set can only be expanded 123 times. After this we will have to reallocate the page set using larger primary and secondary extents. For information about managing page sets, see Manage page sets.

    CSQP014E

    csect-name EXPANSION FAILED FOR PAGE SET psid. FUTURE REQUESTS TO EXTEND IT WILL BE REJECTED

    Severity
    8

    Explanation

    An attempt to expand a page set dynamically was unsuccessful.

    System action

    Processing continues.

    System programmer response

    Look for messages from VSAM or DFP that explain why the request was unsuccessful, and do the required actions.

    Determine why the page set needs to expand:

    • Review Plan your page sets and buffer pools to make sure your page set allocation is large enough for the application queues.
    • If there is a large depth on the Dead Letter Queue (DLQ) either implement the DLQ Handler, CSQUDLQH, or clear the queue with CLEAR QLOCAL command if you don't need to take further action with the messages. Similarly, SYSTEM.EVENT.* queues can fill a page set.
    • Look in joblogs or application logs to see if an error is preventing the getting application from running.
    • See if an application is failing to commit its gets or puts. We can tell if there are uncommitted messages by using the following command:
      DISPLAY QSTATUS(qname) UNCOM CURDEPTH
      Notes:
      1. The display does not show how many messages are uncommitted, and whether they are for gets or puts.
      2. A message that is subject to an uncommitted MQGET still takes up space on the page set, although the message no longer contributes to the depth of the queue.

    • If the getting application is a channel, is the channel starting, and is the channel able to successfully move messages? Use the command
      DISPLAY CHSTATUS(channelname) ALL
      to verify the channel status attributes including STATUS, SUBSTATE, and INDOUBT.
    • If the messages use an integer in MQMD.EXPIRY, there might be expired messages that need to be cleaned up. If EXPRYINT is set to OFF in the QMGR definition, the command
      REFRESH QMGR TYPE(EXPIRY) NAME(big.queue)
      causes an EXPIRY scan of the queue that matches the name provided in the NAME() field. This command can take some time to process. Issue the command
      DISPLAY USAGE PSID(n)
      where n is the page set number, at regular intervals, to monitor progress.
    • Check for any third party products on the system that get involved with EOV or EXTEND processing.

    If we have received message IEC070I, and the return code (the first value in that message) is:

      034(004):
      End of volume - Non-extended addressable. The new allocation amount would exceed 4 GB.

      If the message volume or size requires a larger page set, follow the instructions at Defining a page set to be larger than 4 GB

      104
      No more volumes are available on which to allocate space (no more candidate volumes).Use the following commands to add space and switch off the internal page not expandable flag:

      • The TSO ALTER ADDVOLUME command to add space for extents.
      • ALTER PSID() EXPAND()

        We must supply valid syntax, that is, a page set number and expand value. See ALTER PSID for more information.

      203
      An extend was attempted, but no secondary space allocation quantity was specified.

      204
      An extend was attempted, but the maximum number of extents was reached.

      The maximum number of extents for a VSAM data set cataloged in an ICF catalog is between 119 and 123, depending upon the number of extents (1-5) allocated by DADSM per allocate/extend request.

      209

      • An extend was attempted, but no space was available on user volume.
      • No secondary space quantity was specified and no candidate volumes are available.

      We can follow the directions in How to increase the size of a page set as IBM MQ for z/OS allows you to enable dynamic page set expansion, or add candidate volumes using IDCAMS ALTER ADDVOL.

      The data set then needs to be closed and reopened so that the TIOT is rebuilt; otherwise IEC070I 211(8,306)-221 and IGD306I UNEXPECTED ERROR DURING IEFAB4C2 PROCESSING RETURN CODE 24 REASON CODE 0 might occur.

      The close can be done without a recycle of the queue manager by using the following JCL:
      //STEP1 EXEC PGM=IDCAMS
      //DSFILE DD DSN=your.dataset.name,DISP=SHR
      //SYSPRINT DD SYSOUT=*
      //SYSIN DD *
      VERIFY FILE(DSFILE)
      /*

      We might need to run the JCL twice to complete with a non-zero return code. Some flags might not be reset during the first run.

    Note: DFP uses up to five non-contiguous areas of disk to satisfy the total space requirements of a primary or secondary extent. This means, in the worst case of badly fragmented disk space, that you might only get around 22 times the secondary space allocated before you reach the maximum space limit.

    If you believe that there is sufficient free space that could be used by another secondary extent, contact the IBM support center for assistance.

    CSQP016E

    csect-name PAGE SET psid HAS REACHED THE MAXIMUM NUMBER OF EXTENTS. IT CANNOT BE EXTENDED AGAIN

    Severity
    8

    Explanation

    An attempt to expand page set psid dynamically was unsuccessful because the maximum number of extents had been used.

    System action

    The page set cannot be extended again. When the messages on the full page set are retrieved, the existing space will be reused.

    System programmer response

    Copy the page set to a new page set with larger primary and secondary extents. By defining the page set as a multivolume data set, we can take advantage of the free space on as many disk volumes as possible. See Plan the IBM MQ environment on z/OS. For more information about page set organization and management, see Manage page sets.

    CSQP017I

    csect-name EXPANSION STARTED FOR PAGE SET psid

    Severity
    0

    Explanation

    Page set psid is being expanded dynamically, by creating a new extent.

    System action

    All threads that are currently adding message to page set psid are suspended until the page set expansion completes (this is indicated by message CSQP013I).

    CSQP018I

    csect-name CHECKPOINT STARTED FOR ALL BUFFER POOLS

    Severity
    0

    Explanation

    A checkpoint is being taken for all defined buffer pools.

    CSQP019I

    csect-name CHECKPOINT COMPLETED FOR BUFFER POOL n, pages PAGES WRITTEN

    Severity
    0

    Explanation

    A checkpoint has been successfully taken for buffer pool n.

    CSQP020E

    csect-name Buffer pool n is too small

    Severity
    8

    Explanation

    Contention is taking place for buffers in a buffer pool. Messages will have to be read from and written to the page sets, which increases the time to process an application request and increases the amount of processor time used.

    System action

    Processing continues.

    System programmer response

    If required, use the ALTER BUFFPOOL command to add more buffers to the buffer pool. Consider first altering other buffer pools to reduce the total number of buffers in use. Refer to the latest CSQY220I message on the z/OS console to see how much virtual storage is free, and hence how many extra buffers may be safely added to a buffer pool. If you do change the number of buffers in the buffer pool, we should also change the DEFINE BUFFPOOL commands in the CSQINP1 initialization input data set used by the queue manager.

    Alternatively, specify DEFINE BUFFPOOL(X) REPLACE as this option does not use the log checkpoint record.

    If the buffer pool has a LOCATION value of BELOW and there is insufficient storage below the bar then consider moving the buffer above the bar by setting its LOCATION value to ABOVE. This might require altering the value of the MEMLIMIT parameter. For more information, see Address space storage.

    CSQP021I

    Page set psid new media recovery RBA=rcvry-rba, checkpoint RBA=chkpt-rba

    Severity
    0

    Explanation

    During checkpoint processing, buffers have been flushed from the buffer pools to the indicated page set, establishing a new media recovery RBA. This RBA is the point from which log data would be required to perform media recovery for the page set. It should be the same as the checkpoint RBA.

    System action

    Processing continues.

    System programmer response

    If the media recovery and checkpoint RBAs differ, contact the IBM support center.

    CSQP022I

    Buffer pool n is not defined

    Severity
    8

    Explanation

    A command has been issued specifying a buffer pool that is not defined.

    System action

    The command is ignored.

    System programmer response

    See MQSC commands for information about the command, and reissue the command correctly.

    CSQP023I

    Request completed for buffer pool n, now has k buffers

    Severity
    0

    Explanation

    The size of the specified buffer pool has been successfully changed.

    CSQP024I

    Request initiated for buffer pool n

    Severity
    0

    Explanation

    The request to change the buffer pool has been accepted. One of the messages CSQP023I, CSQP052I, or CSQP053I will be sent to the z/OS console when the change is complete,

    CSQP025I

    Page set n is not defined or offline

    Severity
    8

    Explanation

    A command has been issued specifying a page set that is not available to the queue manager.

    System action

    The command is ignored.

    System programmer response

    See MQSC commands for information about the command, and reissue the command correctly.

    CSQP026I

    Page set n is in use by a storage class

    Severity
    8

    Explanation

    The page set specified is referenced by a storage class, and so cannot be deleted.

    System action

    The command is ignored.

    System programmer response

    Change or delete all the storage classes that reference the page set, and then reissue the command.

    CSQP027I

    Page set n has buffers in use

    Severity
    8

    Explanation

    The page set specified has buffers that are still in use, and so cannot be deleted.

    System action

    The command is ignored.

    System programmer response

    Wait until three checkpoints have been completed, and then reissue the command.

    CSQP028I

    Request initiated for page set n

    Severity
    0

    Explanation

    The request to define or delete the page set has been accepted. Message CSQP042I or CSQP032I will be sent to the z/OS console when the change is complete. If the change fails, messages CSQP041E or CSQP031E will be sent.

    CSQP030E

    Deallocation failed for data set dsname, error status=eeeeiiii, SMS reason code=ssssssss

    Severity
    8

    Explanation

    An error occurred when trying to dynamically deallocate the page set data set. Error status is the error reason code returned by z/OS dynamic allocation.

    System action

    The page set is deleted and is no longer available for use.

    System programmer response

    The error status portion of this message contains a 2-byte error code (eeee, S99ERROR) followed by the 2-byte information code (iiii, S99INFO) from the SVC99 request block. If the S99ERROR code indicates an SMS allocation error ('97xx'), then ssssssss contains additional SMS reason code information obtained from S99ERSN.

    Go to the z/OS MVS™ documentation in IBM Knowledge Center, and select the Interpreting DYNALLOC return codes topic of the MVS Authorized Assembler Services Guide for information about these codes .

    CSQP031E

    Page set n deletion failed

    Severity
    8

    Explanation

    An error occurred while deleting the specified page set.

    System action

    Processing continues.

    System programmer response

    See the preceding error messages for more information about the error.

    CSQP032I

    Page set n deletion completed

    Severity
    0

    Explanation

    The specified page set has been successfully deleted.

    CSQP033E

    Error deleting page set n, code=rrr

    Severity
    8

    Explanation

    An error occurred while deleting the specified page set.

    System action

    The page set is not deleted, and is still available for use.

    System programmer response

    Note the error code and contact the IBM support center.

    CSQP034E

    Page set n is already defined

    Severity
    8

    Explanation

    The specified page set is already in use by the queue manager, and so cannot be dynamically defined.

    System action

    The command is ignored.

    System programmer response

    See MQSC commands for information about the command, and reissue the command correctly.

    CSQP035E

    Allocation failed for data set dsname, error status=eeeeiiii, SMS reason code=ssssssss

    Severity
    8

    Explanation

    An error occurred when trying to dynamically allocate the page set data set. Error status is the error reason code returned by z/OS dynamic allocation.

    System action

    The page set is not defined.

    System programmer response

    The error status portion of this message contains a 2-byte error code (eeee, S99ERROR) followed by the 2-byte information code (iiii, S99INFO) from the SVC99 request block. If the S99ERROR code indicates an SMS allocation error ('97xx'), then ssssssss contains additional SMS reason code information obtained from S99ERSN.

    Go to the z/OS MVS documentation in IBM Knowledge Center, and select the Interpreting DYNALLOC return codes topic of the MVS Authorized Assembler Services Guide for information about these codes .

    CSQP036I

    Data set dsname for page set n is not formatted with RECOVER or REPLACE

    Severity
    8

    Explanation

    The named page set data set was not formatted correctly. A data set that is to be used for adding a page set dynamically must be one that is newly formatted (using TYPE(RECOVER)), or one that has previously been used to hold messages and has been formatted using TYPE(REPLACE).

    System action

    The page set is not defined.

    System programmer response

    Format the data set as required. If we are adding a previously unused page set to the queue manager, use the FORMAT function of the utility program CSQUTIL, specifying TYPE(RECOVER). If the page set was previously used to hold messages, use the FORMAT function specifying TYPE(REPLACE).

    In the latter case, if the queue manager terminated abnormally, the formatting may fail, and message CSQU160E will be issued. It is not possible to add such a page set data set dynamically, but the page set can be brought into use again by including it in the started task JCL procedure xxxxMSTR for the queue manager, and then restarting the queue manager.

    CSQP037E

    OPEN failed for page set n, VSAM return code=rc reason code=reason

    Severity
    8

    Explanation

    A VSAM error occurred when trying to open the page set data set.

    System action

    The page set is not defined.

    System programmer response

    See the DFSMS/MVS Macro Instructions for Data Sets for information about the return and reason codes from VSAM. If necessary, reissue the request.

    CSQP038E

    GET failed for page set n, VSAM return code=rc reason code=reason

    Severity
    8

    Explanation

    A VSAM error occurred when trying to get a record from the page set data set.

    System action

    The page set is not defined.

    System programmer response

    See the DFSMS/MVS Macro Instructions for Data Sets for information about the return and reason codes from VSAM. If necessary, reissue the request.

    CSQP039E

    CLOSE failed for page set n, VSAM return code=rc reason code=reason

    Severity
    8

    Explanation

    A VSAM error occurred when trying to close the page set data set.

    System action

    The page set is not defined.

    System programmer response

    See the DFSMS/MVS Macro Instructions for Data Sets for information about the return and reason codes from VSAM. If necessary, reissue the request.

    CSQP041E

    Page set n definition failed

    Severity
    8

    Explanation

    An error occurred while defining the specified page set.

    System action

    Processing continues.

    System programmer response

    See the preceding error messages for more information about the error.

    CSQP042I

    Page set n definition completed

    Severity
    0

    Explanation

    The specified page set has been successfully defined.

    CSQP043I

    Buffer pool n is in use by a page set

    Severity
    8

    Explanation

    The buffer pool specified is in use by a page set, and so cannot be deleted.

    System action

    The command is ignored.

    System programmer response

    Change or delete all the page sets that reference the buffer pool, and then reissue the command.

    CSQP045I

    Buffer pool n is not in use by any page set

    Severity
    8

    Explanation

    The buffer pool specified is not in use by any page set, and so cannot have buffers added or removed.

    System action

    The command is ignored.

    System programmer response

    Define at least one page set that references the buffer pool, and then reissue the command, or delete the buffer pool.

    CSQP046I

    Request already in progress for buffer pool n

    Severity
    8

    Explanation

    The buffer pool specified is being altered or deleted by another command.

    System action

    The command is ignored.

    System programmer response

    Wait until the other command has completed processing, and then reissue the command if appropriate.

    CSQP047E

    Unavailable page sets can cause problems - take action to correct this situation

    Severity
    4

    Explanation

    One or more page sets are unavailable, as reported in the preceding messages; they are either offline having been used previously, not defined, suspended, or otherwise inaccessible. For example, MQ may have attempted to open a page set at restart, but failed perhaps because it was in use by another application.

    This situation can cause problems, so we should take action to correct it as soon as possible.

    System action

    Processing continues.

    System programmer response

    Use the DISPLAY USAGE command to get a list of the unavailable page sets.

    If a previously-used page set is required, bring it online; this can be done without stopping the queue manager. Use the FORMAT function of the utility program CSQUTIL, specifying TYPE(REPLACE). Then issue a DEFINE PSID command to bring the page set back into use. Note that all units of recovery (except those that are indoubt) that involved the offline page set will have been backed out by the queue manager when the page set was last used. These indoubt units of recovery may be resolved once the page set is back in use by the queue manager.

    If a page set is not required, issue a DELETE PSID command to remove it. Also remove any DEFINE PSID command for it from the CSQINP1 initialization input data set.

    CSQP048E

    PUT failed for page set n, VSAM return code=rc reason code=reason

    Severity
    8

    Explanation

    A VSAM error occurred when trying to get a record from the page set data set.

    System action

    The page set is not defined.

    System programmer response

    See the DFSMS/MVS Macro Instructions for Data Sets for information about the return and reason codes from VSAM. If necessary, reissue the request.

    CSQP049I

    Data set dsname is formatted for a different page set n

    Severity
    8

    Explanation

    The page set data set was formatted using TYPE(REPLACE), and as such may contain messages for a specific page set n. It cannot be added dynamically with a different page set identifier.

    System action

    The page set is not defined.

    System programmer response

    Reissue the command specifying the correct data set and page set. If you intended adding a previously unused page set, reformat the data set with use the FORMAT function of the utility program CSQUTIL, specifying TYPE(RECOVER).

    CSQP051I

    Insufficient storage for buffer pool n request

    Severity
    4

    Explanation

    The size of the specified buffer pool has not been changed as requested because insufficient storage is available.

    System programmer response

    The DISPLAY USAGE command can be used to determine the current sizes of all buffer pools defined to the system. It may be possible to reduce the size of other buffer pools, so freeing storage, which can then be assigned to this buffer pool by reissuing the command.

    Message CSQY220I shows the storage information. Refer to Manage buffer pools for more information on how to alter your buffer pool.

    CSQP052I

    Request partially completed for buffer pool n, now has k buffers

    Severity
    4

    Explanation

    The size of the specified buffer pool has been changed. The number of buffers is not that requested because, for example, insufficient storage is available.

    CSQP053I

    Request completed for buffer pool n, buffers not changed

    Severity
    0

    Explanation

    The size of the specified buffer pool has not been changed. This could be because the number of buffers requested was the same as the existing size, or because there was insufficient storage available to change the size or location of the buffer pool (as shown by preceding message CSQP051I).

    CSQP054I

    Buffer pool n is now located above the bar

    Severity
    0

    Explanation

    The specified buffer pool has now been moved so that it is located above the bar.

    CSQP055I

    Buffer pool n is now located below the bar

    Severity
    0

    Explanation

    The specified buffer pool has now been moved so that it is located below the bar.

    CSQP056E

    The ALTER BUFFPOOL command for buffer pool n has failed

    Severity
    8

    Explanation

    An unexpected error occurred while processing the ALTER BUFFPOOL command. The buffer pool will be left with the number of buffers that were in it at the time the error occurred.

    System action

    Processing continues.

    System programmer response

    Use the DISPLAY USAGE PSID(*) command to view the current state of the buffer pool. If necessary reissue the ALTER BUFFPOOL command again.

    If any abends have been issued, look at the abend code to see if the error is caused by the queue manager being short of storage. Changing the LOCATION parameter from BELOW to ABOVE for a buffer pool might require you to increase the MEMLIMIT parameter in the JCL of the queue manager stored procedure, xxxxMSTR. For more details, see Address space storage.

    If switching a buffer pool from above to below the bar you might need to decrease the number of buffers in the buffer pool.

    CSQP060E

    Page set 0 must use one of buffer pools 0 to 15

    Severity
    12

    Explanation

    Page set 0 must be defined so that it uses buffer pool 0 to 15.

    System action

    Queue manager startup fails.

    System programmer response

    Define page set 0 so that it uses buffer pool 0 to 15. Generally, use buffer pool 0.

    CSQP061I

    ALTER BUFFPOOL n in progress, elapsed time m minutes

    Severity
    4

    Explanation

    The ALTER BUFFPOOL command has been issued for the specified buffer pool. If the command takes longer than approximately five minutes to process, this message is output approximately every five minutes until the command is complete.

    Once the command is complete one or more of the following messages is output: CSQP023I, CSQP051I, CSQP052I, or CSQP053I.

    This message might be output in the following scenarios:

    • The specified buffer pool has had its LOCATION parameter changed from ABOVE to BELOW
    • The specified buffer pool had its LOCATION parameter set to ABOVE and the number of buffers has been reduced by a large number

    In most cases the ALTER BUFFPOOL command completes very quickly, and this message is not output. If this message is output, it should not be a cause for concern unless the value of the elapsed time becomes a large value - more than 30 minutes.

    System action

    Processing continues.

    System programmer response

    Monitor the job log for further output of this message, or a message indicating that the ALTER BUFFPOOL command has completed.

    If this message is continually output and the elapsed time grows to a large value (more than 30 minutes) this might indicate a problem, so contact the IBM Service representative.

    CSQP062I

    Buffer pool n PAGECLAS changed, restart required to take effect

    Severity
    4

    Explanation

    The PAGECLAS attribute of the specified buffer pool has changed.

    This change does not dynamically affect the type of pages used by the buffer pool, unless the LOCATION attribute is changed from BELOW to ABOVE at the same time. However the change is logged, and is applied when the queue manager is restarted.

    System action

    Processing continues. The buffer pool uses the previous value of the PAGECLAS attribute.

    System programmer response

    None, unless you require that the new PAGECLAS attribute of the specified buffer pool takes immediate effect.

    In this case, either restart the queue manager or perform both of the following steps:
    1. Buffer pool so that its LOCATION attribute is BELOW and its PAGECLAS is 4KB, and
    2. Change the LOCATION attribute of the buffer pool to ABOVE, at the same time as changing the PAGECLAS attribute.

    CSQP063E

    PAGECLAS value must be 4KB if specified with LOCATION(BELOW)

    Severity
    8

    Explanation

    A buffer pool with a LOCATION value of ABOVE and PAGECLAS attribute that is not 4KB has been altered so that its LOCATION value is BELOW.

    The only value of PAGECLAS that is valid with a LOCATION value of BELOW is 4KB.

    System action

    The command is ignored.

    System programmer response

    In addition to altering the LOCATION attribute to the value BELOW, alter the PAGECLAS attribute to the value 4KB.

    CSQP064I

    Buffer pool n definition in CSQINP1 data set used

    Severity
    4

    Explanation

    This message is issued at startup when the queue manager reads its log.

    A buffer pool has been defined in the CSQINP1 data set, with the REPLACE attribute specified, so the definition for the buffer pool in the log of the queue manager is ignored.

    Changes made to the buffer pool, using the ALTER BUFFPOOL command, when the queue manager was previously running have not occurred.

    This message is only output if there is a difference between the definition for the buffer pool in the CSQINP1 data set and the log of the queue manager.

    System action

    The attribute values for the specified buffer pool are taken from the CSQINP1 data set rather than using the values stored in the log of the queue manager.

    System programmer response

    If the buffer pool definition in the CSQINP1 data set is the one you require, ignore the message.

    Otherwise:

    • Use the ALTER BUFFPOOL command to change the definition of the buffer pool, and also change its definition in CSQINP1 to match, or
    • Remove the REPLACE attribute on the buffer pool definition in the CSQINP1 data set.

      Note, that instead of removing the REPLACE attribute we can specify the NOREPLACE attribute instead.

Parent topic: Messages for IBM MQ for z/OS