MUCBK | Back to Index page

| Prolog Control Block Contents MUCBK DSECT MUC_COM_DATA DSECT MUC_COM_CONFIG DSECT MUC_COM_TERM DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

MUCBK Prolog | Top of page

     NAME       : HCPMUCBK
     DESCRIPTION: Monitor User Control Block
     DSECT      : MUCBK
     FUNCTION   : Represents a user that has been connected to
                  *MONITOR System Service.
                  Storage type is sys perm.
     LOCATED BY : Data structure   Field location
                  MUC_NEXT           field in MUCBK
                  MUC_PREV           field in MUCBK
                  MNDI_CONN_HEAD     field in MNDBK
                  MNDI_CONN_TAIL     field in MNDBK
                  MNDI_SEV_PURGEF_H  field in MNDBK
                  MNDI_SEV_PURGEF_T  field in MNDBK
                  MNDE_MAIL_H        field in MNDBK
                  MNDS_MAIL_H        field in MNDBK
                  MNDE_PC_HEAD       field in MNDBK
                  MNDS_PC_HEAD       field in MNDBK
     CREATED BY : HCPMNICN - *MONITOR IUCV CONNECT processing
     DELETED BY : HCPMOIER - Process IUCV REPLY to Event Data Message
                  HCPMOISR - Process IUCV REPLY to Sample Data Message
                  HCPMXBCR - Process IUCV REPLY to Config Message
                  HCPMXESU - Sever Monitor User's IUCV Path to *MONITOR
                  HCPMOIRT - Process IUCV REPLY to Termination messages
     REFERENCES : none
     SERIALIZED : N/A
     RELOCATION CONSIDERATIONS : None
     COMPATIBILITY AND MIGRATION CONCERNS : The forward and backward
                  pointers must occupy the first two words of this
                  control block.

MUCBK Control Block Content | Top of page

     MUCBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      MUCBK          Monitor User Control Block
    0000    0 Address      4 MUC_NEXT       Forward pointer to the next block
                                            on the chain - MUST BE FIRST IN
                                            BLOCK
    0004    4 Address      4 MUC_PREV       Backward pointer to the prev
                                            block on the chain - MUST BE
                                            SECOND IN BLOCK
    0008    8 Character    8 MUC_USERID     Userid
    0010   16 Address      4 MUC_VMDBKAD    Address of user's VMDBK
          User Session Data
          These characteristics are established when the user connects to
         **MONITOR.
    0014   20 Bitstring   26 MUC_SESSION (0)
                                            Static Session Data
          User Static Session Data. This does not change while the user is
          connected.
    0014   20 Bitstring    1 MUC_MON_TYPE   Type of monitoring requested by
                                            user. At least one of these flags
                                            will be on. Serialized by the
                                            MND_CMD_LOCK
              1... ....      MUC_S_CONN     X'80' MUC_S_CONN Connected for
                                            sample data. This user is
                                            "eligible" for data messages if
                                            he is NOT on the sample pending-
                                            config list (MNDS_PC_LIST).
              .1.. ....      MUC_E_CONN     X'40' MUC_E_CONN Connected for
                                            EVENT data ... this user is
                                            "eligible" for data messages if
                                            he is NOT on the event pending-
                                            config list (MNDE_PC_LIST).
    0015   21 Bitstring    1 *              Reserved for IBM use
    0016   22 Bitstring    8 MUC_IUCV (0)   Serialized by the MND_CMD_LOCK
    0016   22 Address      2 MUC_PATHID     IUCV-assigned pathid for the path
                                            between *MONITOR and this user's
                                            virtual machine
    0018   24 Signed       1 MUC_MSGLIM (0) IUCV message limit information
    0018   24 Bitstring    2 MUC_I_MSGLIM   IUCV message limit for this path
                                            established when *MONITOR does
                                            the IUCV ACCEPT for this path
    001A   26 Bitstring    2 *              Reserved for IBM use
          User Dynamic Session Data. This can change while the user is
          connected.
    001C   28 Bitstring   16 MUC_USER_STAT (0)
                                            Dynamic session data
    001C   28 Bitstring    1 MUC_SAMPLE_STA (0)
                                            Sample Status
    001C   28 Bitstring    1 MUC_SAMPLE_FLG Sample Status Flags
              1... ....      MUC_S_HC       X'80' MUC_S_HC Holding sample
                                            config records. Serialized by
                                            MND_CMD_LOCK
    001D   29 Bitstring    1 MUC_EVENT_STAT (0)
                                            Event Status
    001D   29 Bitstring    1 MUC_EVENT_FLGS Event flags
              1... ....      MUC_E_HC       X'80' MUC_E_HC Holding event
                                            config records. Serialized by
                                            MND_CMD_LOCK
    001E   30 Bitstring    1 MUC_QUIS (0)
    001E   30 Bitstring    1 MUC_QUIS_FLAGS Quiesce flags
              1... ....      MUC_QUIESCE    X'80' MUC_QUIESCE User's path is
                                            quiesced. Serialized by
                                            MND_CMD_LOCK and the
                                            MNDE_MAIL_LOCK.
    001F   31 Bitstring    1 *              Reserved for IBM use
    0020   32 Bitstring    8 MUC_SEVER (0)
    0020   32 Bitstring    1 MUC_SEVER_FLGS Sever flags
    0021   33 Bitstring    3 *              Reserved for IBM use.
    0024   36 Signed       4 MUC_PURGEF_CT  Count of "purge-failed" messages
                                            - i.e. the number of messages
                                            that *MONITOR attempted to purge
                                            but failed to do so.
    0028   40 Signed       4 MUC_MSG_CT     Count of outstanding messages for
                                            this user (config, data and
                                            termination)
          Managing Event messages
    002C   44 Bitstring   60 MUC_EVENT (0)
    002C   44 Bitstring   30 MUC_EVENT_DATA (0)
                                            Event data mail list
    002C   44 Address      4 MUC_EMAIL_NEXT Pointer to next MUCBK on event
                                            mail list (MNDE_MAIL). This field
                                            will contain hex FF's if this
                                            user is not on the mail list.
                                            Serialized by MNDE_MAIL_LOCK plus
                                            the MND_CMD_LOCK for updating.
                                            Either lock is sufficient for
                                            read only access.
    0030   48 Address      4 MUC_EMAIL_PREV Pointer to previous MUCBK on the
                                            event mail list (MNDE_MAIL). This
                                            field will contain hex FF's if
                                            this user is not on the mail
                                            list. Serialized by
                                            MNDE_MAIL_LOCK plus the
                                            MND_CMD_LOCK for updating. Either
                                            lock is sufficient for read only
                                            access.
    0034   52 Bitstring   11 MUC_ED_SENT (0)
                                            Chain of MMLBKs, each
                                            representing a message sent to
                                            the user for event data and for
                                            which *MONITOR is now awaiting a
                                            reply. Also mapped by
                                            MUC_COM_DATA.
    0034   52 Address      4 MUC_ED_SENT_H  Pointer to the head of this
                                            user's list of MMLBKs for sent
                                            EVENT data messages. When the
                                            list is empty, this field points
                                            to itself
    0038   56 Address      4 MUC_ED_SENT_T  Pointer to the tail of this
                                            user's list of MMLBKs for sent
                                            EVENT data messages. When the
                                            list is empty this field contains
                                            the address of the head,
                                            MUC_ED_SEND_H.
    003C   60 Address      2 MUC_ED_SENT_CT count of EVENT data messages
                                            outstanding for this user
    003E   62 Bitstring    1 *              Reserved for IBM use
    003F   63 Bitstring    1 *              Reserved for IBM use
    0040   64 Bitstring   10 MUC_ED_PEND (0)
                                            This is a circular list of MMLBKs
                                            for event data messages that are
                                            pending for this user. Serialized
                                            by MNDI_EV_SENT.MND_LOCK
    0040   64 Address      4 MUC_ED_PEND_H  Pointer to the head of this
                                            user's list of MMLBKs for pending
                                            event data messages. When the
                                            list is empty this field points
                                            to itself.
    0044   68 Address      4 MUC_ED_PEND_T  Pointer to the tail of this
                                            user's list of MMLBKs for pending
                                            event data messages. When the
                                            list is empty this field contains
                                            the address of the head,
                                            MUC_ED_PEND_H.
    0048   72 Address      2 MUC_ED_PEND_CT Count of pending EVENT data
                                            messages for this user.
    004A   74 Bitstring    2 *              Reserved for IBM use
           EVENT config messages
    004C   76 Bitstring   16 MUC_EVENT_CONF (0)
                                            These fields are serialized by
                                            the MND_CMD_LOCK.
    004C   76 Address      4 MUC_EPC_NEXT   Pointer to next MUCBK on event
                                            Pending-Config list
                                            (MNDE_PC_LIST). This field will
                                            contain hex FF's if this user is
                                            not on the list.
    0050   80 Address      4 MUC_EPC_PREV   Pointer to previous MUCBK on
                                            event Pending-Config list
                                            (MNDE_PC_LIST). This field will
                                            contain hex FF's if this user is
                                            not on the list.
    0054   84 Bitstring    8 MUC_EC_SENT (0)
                                            A chain of MMLBKs, each
                                            representing a message sent to
                                            the user for event config data
                                            and for which *MONITOR is now
                                            awaiting a reply. Also mapped by
                                            MUC_COM_CONFIG.
    0054   84 Address      4 MUC_EC_SENT_H  Pointer to head of this user's
                                            list of EVENT config MMLs. When
                                            the list is empty, this field
                                            points to itself. Note: if this
                                            list is not empty, that does NOT
                                            necessarily mean that this user
                                            is holding the config area.
                                            However, only 1 MML at a time can
                                            be "active" - any others on the
                                            list represent messages that
                                            monitor tried to purge. (See
                                            MMLBK).
    0058   88 Address      4 MUC_EC_SENT_T  Pointer to tail of this user's
                                            list of EVENT config MMLs. When
                                            the list is empty, this field
                                            contains the address of the head,
                                            MUC_EC_SENT_H.
          EVENT termination messages
    005C   92 Bitstring   12 MUC_EVENT_TERM (0)
                                            These fields are serialized by
                                            the MND_CMD_LOCK.
    005C   92 Bitstring    8 MUC_ET_SENT (0)
    005C   92 Address      4 MUC_ET_SENT_H  Pointer to head of this user's
                                            list of EVENT termination MMLs.
                                            (Note: only 1 MML at a time can
                                            be "active" - any others on the
                                            list represent messages that
                                            monitor tried to purge (See
                                            MMLBK). When the list is empty,
                                            this field points to itself.
    0060   96 Address      4 MUC_ET_SENT_T  Pointer to tail of this user's
                                            list of EVENT termination
                                            messages. When the list is empty,
                                            this field contains the address
                                            of the head, MUC_ET_SENT_H.
    0064  100 Bitstring    1 MUC_ET_PEND    Termination flag
              1... ....      MUC_ET_PEND_FL X'80' MUC_ET_PEND_FL Pending flag
                                            for termination message. ON =
                                            user needs an event termination
                                            message. A termination message
                                            will be sent when the user
                                            resumes his path.
    0065  101 Bitstring    3 *              Reserved for IBM use
          Managing SAMPLE messages
    0068  104 Bitstring   48 MUC_SAMPLE (0) Sample data e-mail list
    0068  104 Bitstring    1 MUC_SAMPLE_DAT (0)
                                            Sample data messages
    0068  104 Address      4 MUC_SMAIL_NEXT Pointer to next MUCBK on sample
                                            mail list (MNDS_MAIL). This field
                                            will contain hex FF's if this
                                            user is not on the mail list.
                                            Serialized by MND_CMD_LOCK.
    006C  108 Address      4 MUC_SMAIL_PREV Pointer to previous MUCBK on
                                            sample mail list (MNDS_MAIL).
                                            This field will contain hex FF's
                                            if this user is not on the mail
                                            list. Serialized by MND_CMD_LOCK.
    0070  112 Bitstring   11 MUC_SD_SENT (0)
                                            Chain of MMLBKs, each
                                            representing a message sent to
                                            the user for sample data and for
                                            which *MONITOR is now awaiting a
                                            reply. Also mapped by
                                            MUC_COM_DATA.
    0070  112 Address      4 MUC_SD_SENT_H  Pointer to the head of this
                                            user's list of MMLs for sent
                                            SAMPLE data messages. When the
                                            list is empty, this field points
                                            to itself.
    0074  116 Address      4 MUC_SD_SENT_T  Pointer to the tail of this
                                            user's list of MMLs for sent
                                            SAMPLE data messages. When the
                                            list is empty, this field points
                                            to the head, MUC_SD_SENT_H.
    0078  120 Address      2 MUC_SD_SENT_CT Count of SAMPLE data messages
                                            (MMLs) outstanding for this path
    007A  122 Bitstring    1 MUC_SD_LOST    Sample flags
              1... ....      MUC_SD_LOSG_BI X'80' MUC_SD_LOSG_BI The user has
                                            miss one or more while his path
                                            was quiesced.
    007B  123 Bitstring    1 *              Reserved for IBM use
          SAMPLE config messages
    007C  124 Bitstring   16 MUC_SAMPLE_CON (0)
                                            Sample configuration data e-mail
                                            list Serialized by MND_CMD_LOCK.
    007C  124 Address      4 MUC_SPC_NEXT   Pointer to next MUCBK on sample
                                            pending-config list
                                            (MNDS_PC_LIST). This field will
                                            contain hex FF's if this user is
                                            not on the list (ie. if this user
                                            is not waiting foe sample config
                                            records.)
    0080  128 Address      4 MUC_SPC_PREV   Pointer to previous MUCBK on the
                                            sample pending-config list
                                            (MNDS_PC_LIST). This field will
                                            contain hex FFs if this user is
                                            not on the list (ie. if user is
                                            not waiting for sample config
                                            records.
    0084  132 Bitstring    8 MUC_SC_SENT (0)
                                            Chain of MMLBKs, each
                                            representing a message sent to
                                            the user for sample config data
                                            and for which *MONITOR is now
                                            awaiting a reply. Also mapped by
                                            MUC_COM_CONFIG.
    0084  132 Address      4 MUC_SC_SENT_H  Pointer to head of this user's
                                            list of SAMPLE config MMLs.
                                            (Note: only 1 MML at a time can
                                            be "active" - any others on the
                                            list represent messages that
                                            monitor tried to purge. See
                                            MMLBK). When the list is empty
                                            this field points to itself.
    0088  136 Address      4 MUC_SC_SENT_T  Pointer to tail of this user's
                                            list of SAMPLE config MMLs. When
                                            the list is empty, this field
                                            points to the head,
                                            MUC_SC_SENT_H.
    008C  140 Bitstring   12 MUC_SAMPLE_TER (0)
                                            Outstanding sample termination
                                            data
    008C  140 Bitstring    8 MUC_ST_SENT (0)
                                            Circular list of MMLBKs for sent
                                            sample termination messages.
    008C  140 Address      4 MUC_ST_SENT_H  Pointer to head of this user's
                                            list of SAMPLE termination MMLs.
                                            (Note: only 1 MML at a time can
                                            be "active" - any others on the
                                            list represent messages that
                                            monitor tried to purge. See
                                            MMLBK). When the list is empty
                                            this field points to itself.
    0090  144 Address      4 MUC_ST_SENT_T  Pointer to tail of this user's
                                            list of SAMPLE termination
                                            messages. When the list is empty,
                                            this field points to the head,
                                            MUC_ST_SENT_H.
    0094  148 Bitstring    1 MUC_ST_PEND    Termindation flags
              1... ....      MUC_ST_PEND_FL X'80' MUC_ST_PEND_FL Pending flag
                                            for termination A termination
                                            message will be sent when when
                                            user resumes his path.
    0095  149 Bitstring    3 *              Reserved for IBM use
              00000098       MUC$END        *
              00000013       MUCSIZE        (MUC$END-MUCBK+7)/8 MUCBK size in
                                            doublewords
            MUC_COM_DATA - Map for sample and event data sent fields.
                           Common mapping for MUC_ED_SENT or MUC_SD_SENT.

     MUC_COM_DATA DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      MUC_COM_DATA   Monitor User Control Block
    0000    0 Address      4 MUC_COMD_SENTH Pointer to the head of this
                                            user's list of MMLs for sent data
                                            messages
    0004    4 Address      4 MUC_COMD_SENTT Pointer to the tail of this
                                            user's list of MMLs for sent data
                                            messages
    0008    8 Address      2 MUC_COMD_SENTC Count of outstanding data
                                            messages for this user.
    000A   10 Bitstring    1 MUC_COMD_LOST  Messages flags
            MUC_COM_CONFIG - Map for sample and event config sent fields.
                             Common mapping for MUC_EC_SENT or MUC_SC_SENT.

     MUC_COM_CONFIG DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      MUC_COM_CONFIG Monitor User Control Block
    0000    0 Address      4 MUC_COMC_SENTH Pointer to the head of this
                                            user's list of MMLs for sent
                                            config messages
    0004    4 Address      4 MUC_COMC_SENTT Pointer to the tail of this
                                            user's list of MMLs for sent
                                            config messages
          MUC_COM_TERM - Map for sample and event data TERMINATION fields.
                      Common mapping for MUC_EVENT_TERM and MUC_SAMPLE_TERM

     MUC_COM_TERM DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      MUC_COM_TERM   Monitor User Control Block
    0000    0 Address      4 MUC_COMT_SENTH Pointer to the head of this
                                            user's list of MMLs for
                                            termination messages
    0004    4 Address      4 MUC_COMT_SENTT Pointer to the tail of this
                                            user's list of MMLs for
                                            termination messages
    0008    8 Bitstring    1 MUC_COMT       Termination flags
              1... ....      MUC_COMT_FLAG  X'80' MUC_COMT_FLAG Termination
                                            message pending
    0009    9 Bitstring    3 *              Reserved for IBM use

MUCBK Storage Layout | Top of page

    *** MUCBK - Monitor User Control Block
    *
    *     +---------------------------+---------------------------+
    *   0 |         MUC_NEXT          |         MUC_PREV          |
    *     +---------------------------+---------------------------+
    *   8 |                      MUC_USERID                       |
    *     +---------------------------+------+------+-------------+
    *  10 |       MUC_VMDBKAD         |(014) |//////| MUC_PATHID  |
    *     +-------------+-------------+------+------+------+------+
    *  18 |MUC_I_MSGLIM |/////////////|(01C) |(01D) |(01E) |//////|
    *     +------+------+-------------+------+------+------+------+
    *  20 |(020) |////////////////////|      MUC_PURGEF_CT        |
    *     +------+--------------------+---------------------------+
    *  28 |        MUC_MSG_CT         |      MUC_EMAIL_NEXT       |
    *     +---------------------------+---------------------------+
    *  30 |      MUC_EMAIL_PREV       |      MUC_ED_SENT_H        |
    *     +---------------------------+-------------+------+------+
    *  38 |      MUC_ED_SENT_T        |:_ED_SENT_CT |//////|//////|
    *     +---------------------------+-------------+------+------+
    *  40 |      MUC_ED_PEND_H        |      MUC_ED_PEND_T        |
    *     +-------------+-------------+---------------------------+
    *  48 |:_ED_PEND_CT |/////////////|       MUC_EPC_NEXT        |
    *     +-------------+-------------+---------------------------+
    *  50 |       MUC_EPC_PREV        |      MUC_EC_SENT_H        |
    *     +---------------------------+---------------------------+
    *  58 |      MUC_EC_SENT_T        |      MUC_ET_SENT_H        |
    *     +---------------------------+------+--------------------+
    *  60 |      MUC_ET_SENT_T        |(064) |////////////////////|
    *     +---------------------------+------+--------------------+
    *  68 |      MUC_SMAIL_NEXT       |      MUC_SMAIL_PREV       |
    *     +---------------------------+---------------------------+
    *  70 |      MUC_SD_SENT_H        |      MUC_SD_SENT_T        |
    *     +-------------+------+------+---------------------------+
    *  78 |:_SD_SENT_CT |(07A) |//////|       MUC_SPC_NEXT        |
    *     +-------------+------+------+---------------------------+
    *  80 |       MUC_SPC_PREV        |      MUC_SC_SENT_H        |
    *     +---------------------------+---------------------------+
    *  88 |      MUC_SC_SENT_T        |      MUC_ST_SENT_H        |
    *     +---------------------------+------+--------------------+
    *  90 |      MUC_ST_SENT_T        |(094) |////////////////////|
    *     +---------------------------+------+--------------------+
    *  98
    *
    *** MUCBK - Monitor User Control Block

    *** MUC_COM_DATA - Monitor User Control Block
    *
    *     +---------------------------+---------------------------+
    *   0 |      MUC_COMD_SENTH       |      MUC_COMD_SENTT       |
    *     +-------------+------+------+---------------------------+
    *   8 |:_COMD_SENTC |(00A) | B
    *     +-------------+------+
    *
    *** MUC_COM_DATA - Monitor User Control Block

    *** MUC_COM_CONFIG - Monitor User Control Block
    *
    *     +---------------------------+---------------------------+
    *   0 |      MUC_COMC_SENTH       |      MUC_COMC_SENTT       |
    *     +---------------------------+---------------------------+
    *   8
    *
    *** MUC_COM_CONFIG - Monitor User Control Block

    *** MUC_COM_TERM - Monitor User Control Block
    *
    *     +---------------------------+---------------------------+
    *   0 |      MUC_COMT_SENTH       |      MUC_COMT_SENTT       |
    *     +------+--------------------+---------------------------+
    *   8 |:_COMT|////////////////////| C
    *     +------+--------------------+
    *
    *** MUC_COM_TERM - Monitor User Control Block

MUCBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    MUC$END        0095 00000098
    MUC_COMC_SENTH
                   0000
    MUC_COMC_SENTT
                   0004
    MUC_COMD_LOST  000A
    MUC_COMD_SENTC
                   0008
    MUC_COMD_SENTH
                   0000
    MUC_COMD_SENTT
                   0004
    MUC_COMT       0008
    MUC_COMT_FLAG  0008 80
    MUC_COMT_SENTH
                   0000
    MUC_COMT_SENTT
                   0004
    MUC_E_CONN     0014 40
    MUC_E_HC       001D 80
    MUC_EC_SENT    0054
    MUC_EC_SENT_H  0054
    MUC_EC_SENT_T  0058
    MUC_ED_PEND    0040
    MUC_ED_PEND_CT
                   0048
    MUC_ED_PEND_H  0040
    MUC_ED_PEND_T  0044
    MUC_ED_SENT    0034
    MUC_ED_SENT_CT
                   003C
    MUC_ED_SENT_H  0034
    MUC_ED_SENT_T  0038
    MUC_EMAIL_NEXT
                   002C
    MUC_EMAIL_PREV
                   0030
    MUC_EPC_NEXT   004C
    MUC_EPC_PREV   0050
    MUC_ET_PEND    0064
    MUC_ET_PEND_FL
                   0064 80
    MUC_ET_SENT    005C
    MUC_ET_SENT_H  005C
    MUC_ET_SENT_T  0060
    MUC_EVENT      002C
    MUC_EVENT_CONF
                   004C
    MUC_EVENT_DATA
                   002C
    MUC_EVENT_FLGS
                   001D
    MUC_EVENT_STAT
                   001D
    MUC_EVENT_TERM
                   005C
    MUC_I_MSGLIM   0018
    MUC_IUCV       0016
    MUC_MON_TYPE   0014
    MUC_MSG_CT     0028
    MUC_MSGLIM     0018
    MUC_NEXT       0000
    MUC_PATHID     0016
    MUC_PREV       0004
    MUC_PURGEF_CT  0024
    MUC_QUIESCE    001E 80
    MUC_QUIS       001E
    MUC_QUIS_FLAGS
                   001E
    MUC_S_CONN     0014 80
    MUC_S_HC       001C 80
    MUC_SAMPLE     0068
    MUC_SAMPLE_CON
                   007C
    MUC_SAMPLE_DAT
                   0068
    MUC_SAMPLE_FLG
                   001C
    MUC_SAMPLE_STA
                   001C
    MUC_SAMPLE_TER
                   008C
    MUC_SC_SENT    0084
    MUC_SC_SENT_H  0084
    MUC_SC_SENT_T  0088
    MUC_SD_LOSG_BI
                   007A 80
    MUC_SD_LOST    007A
    MUC_SD_SENT    0070
    MUC_SD_SENT_CT
                   0078
    MUC_SD_SENT_H  0070
    MUC_SD_SENT_T  0074
    MUC_SESSION    0014
    MUC_SEVER      0020
    MUC_SEVER_FLGS
                   0020
    MUC_SMAIL_NEXT
                   0068
    MUC_SMAIL_PREV
                   006C
    MUC_SPC_NEXT   007C
    MUC_SPC_PREV   0080
    MUC_ST_PEND    0094
    MUC_ST_PEND_FL
                   0094 80
    MUC_ST_SENT    008C
    MUC_ST_SENT_H  008C
    MUC_ST_SENT_T  0090
    MUC_USER_STAT  001C
    MUC_USERID     0008
    MUC_VMDBKAD    0010
    MUCSIZE        0095 00000013

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:29:18 EDT.
Copyright IBM Corporation, 1990, 2020