BPXO063I hh.mm.ss DISPLAY OMVS text
Explanation
procname kernalasid status parmmemberlist
MOUNT LATCH ACTIVITY:
USER ASID TCB REASON AGE
-----------------------------------------------
HOLDER:
user asid tcb reason age
TIME: yyyy/mm/dd hh.mm.ss
IS DOING: activity / [pfs_qualifier]
FILE SYSTEM: file_system_name
HOLDING: File System Latch latchno SHR|EXCL
WAITER(S):
user asid tcb reason age
TIME: yyyy/mm/dd hh.mm.ss
user asid tcb reason age
TIME: yyyy/mm/dd hh.mm.ss
.
.
.
user asid tcb reason age
FILE SYSTEM LATCH ACTIVITY:
USER ASID TCB SHR/EXCL AGE
-----------------------------------------------------------------
LATCH latchno FILE SYSTEM: file_system_name
HOLDER(S):
user asid tcb SHR|EXCL age
TIME: yyyy/mm/dd hh.mm.ss
IS DOING: activity / [pfs_qualifier]
FILE: file_name (devno,ino)
WAITER(S):
user asid tcb SHR|EXCL age
.
.
.
FILE LATCH ACTIVITY:
USER ASID TCB SHR/EXCL AGE
-------------------------------------------------------------------
LATCH latchno LSET lset TYPE file_type DEVNO devno INO ino
FILE: file_name
FILE SYSTEM: file_system_name
HOLDER(S):
user asid tcb SHR|EXCL age
TIME: yyyy/mm/dd hh.mm.ss
IS DOING: activity / [pfs_qualifier]
FILE: file_name (devno,ino)
WAITER(S):
user asid tcb SHR|EXCL age
TIME: yyyy/mm/dd hh.mm.ss
.
.
.
OUTSTANDING CROSS SYSTEM MESSAGES:
SENT SYSPLEX MESSAGES:
USER ASID TCB FCODE MEMBER REQID/SEQ MSG TYPE AGE
---------------------------------------------------------------------------
user asid tcb fcode member reqid msg_type age
TIME: yyyy/mm/dd hh.mm.ss seqno
FILE: file_name (devno,ino)
HOLDING: File System Latch latchno SHR|EXCL
user asid tcb fcode member reqid msg_type age
.
.
.
user asid tcb fcode member reqid msg_type age
RECEIVED SYSPLEX MESSAGES:
FROM FROM FROM
ON TCB ASID TCB FCODE MEMBER REQID/SEQ MSG TYPE AGE
----------------------------------------------------------------------------
on_tcb asid tcb fcode member requid msg_type age
TIME: yyyy/mm/dd hh.mm.ss seqno
IS DOING: activity / [pfs_qualifier]
FILE: file_name (devno,ino)
FILE SYSTEM: file_system_name
HOLDING: File System Latch latchno SHR|EXCL
OTHER WAITING THREADS:
USER ASID TCB PID AGE
--------------------------------------------------------------------
user asid tcb pid age
TIME: yyyy/mm/dd hh.mm.ss
IS DOING: activity / [pfs_qualifier]
FILE: file_name (devno,ino)
FILE SYSTEM: file_system_name
HOLDING: File System Latch latchno SHR|EXCL
.
.
.
- Mount latch contention.
- Outstanding sysplex messages. When a system sends a sysplex messages to another sysplex member, the sending system then waits for the outstanding reply message. If the reply is not sent, the user or system task on the sending system hangs.
- File system contention.
- File latch contention
- Other reasons.
- hh.mm.ss
- The time in hours (00–23), minutes (00–59), and seconds (00–59) for the DISPLAY OMVS command.
- procname
- The name of the z/OS UNIX cataloged procedure.
- status
- One of the following:
- ACTIVE
- z/OS UNIX is currently active.
- NOT STARTED
- z/OS UNIX was not started.
- INITIALIZING
- z/OS UNIX is initializing.
- TERMINATING
- z/OS UNIX is terminating.
- TERMINATED
- z/OS UNIX has terminated.
- ETC/INIT WAIT
- z/OS UNIX is waiting for the /etc/init or /usr/sbin/init program to complete initialization.
- FORK SHUTDOWN
- FORK Service has been shutdown.
- SHUTTING DOWN
- z/OS UNIX is shutting down.
- SHUTDOWN BLOCKED
- z/OS UNIX shutdown processing is blocked by one or more jobs, and it waits for all of the blockers to unblock or terminate.
- SHUTDOWN
- z/OS UNIX is shut down.
- RESTARTING
- z/OS UNIX is restarting after a shut down.
- parmmemberlist
- The parmlib member name list specified on the SET OMVS command or on the initialization of OMVS.
- MOUNT LATCH ACTIVITY:
- USER ASID TCB REASON AGE
- This section shows what user and task is holding the mount latch (HOLDERS:), and what users are waiting for it (WAITERS).
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- reason
- A short description of what the end user action that the user or task is doing.
reason is one of the following:
Accessing CDS FileSys Quiesce Module Cleanup AutoMnt vnLookup FileSys UnQuiesce Mount Catchup BHR Async Mount FileSys Export Move Filesystem Blocking Utility FileSys UnExport PFS Termination Check FS Latches FlSys Diag & Fix Post MXRH Waiter Couple DS Switch FileSys Re-Init ReMount Filesys Diag & Fix CDS Get BRLM locks Sysplex Scheduler FileSys Mount Inact Cycle Unknown FileSys Unmount Init PFS Control Update Client VFS FileSys Sync yes MemberGone Rcvry VerifyServiceLvl - age
- The amount of time the user has held the mount latch for HOLDERS, or the amount of time users have waited for the mount latch for waiters. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
-
- activity
- Description of what the holding task is doing. activity is displayed as
either:
- A wait, such as a Latch Wait
- The type of physical file system (PFS) and the operation that the task was called to do, such as READ, WRITE, MOUNT, or FSYNCH
- pfs_qualifier
- If the activity field shows a PFS, the pfs_qualifier field
shows what the PFS is doing. For example, pfs_qualifier might show:
Running
- If the pfs_qualifier field showsRunning
for very long, it probably indicates that the thread is in a PFS wait that cannot be detected by DISPLAY OMVS.Osi Wait
XSYS Message to: sysname
- FILE SYSTEM: file_system_name
- The name of the file system involved, if any.
- HOLDING: File System Latch latchno SHR|EXCL
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by DISPLAY GRS.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- FILE SYSTEM LATCH ACTIVITY:
- USER ASID TCB SHR/EXCL AGE
- This section shows information for file system latches. It shows what user and task is holding the latch (HOLDERS), and what users are waiting for it (WAITERS).
- LATCH latchno
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by Display GRS.
- FILE SYSTEM: file_system_name
- The name of the file system involved, when available.
- HOLDER(S): user asid tcb SHR|EXCL age
- The file system holding the latch:
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- age
- The amount of time the user has held the file system latch for HOLDERS. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
-
- activity
- Description of what the holding task is doing. activity is displayed as
either:
- A wait, such as a Latch Wait
- The type of physical file system (PFS) and the operation that the task was called to do, such as READ, WRITE, MOUNT, or FSYNCH
- pfs_qualifier
- If the activity field shows a PFS, the pfs_qualifier field
shows what the PFS is doing. For example, pfs_qualifier might show:
Running
- If the pfs_qualifier field showsRunning
for very long, it probably indicates that the thread is in a PFS wait that cannot be detected by DISPLAY OMVS.Osi Wait
XSYS Message to: sysname
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
- WAITER(S): user asid tcb SHR|EXCL age
- The file system holding the latch:
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- age
- The amount of time users have waited for the file system latch for waiters. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
-
- activity
- Description of what the holding task is doing. activity is displayed as
either:
- A wait, such as HSM recall when the task is waiting on an HSM recall
- The type of physical file system (PFS) and the operation that the task was called to do, such as READ, WRITE, MOUNT, or FSYNCH
- pfs_qualifier
- If the activity field shows a PFS, the pfs_qualifier field
shows what the PFS is doing. For example, pfs_qualifier might show:
Running
- If the pfs_qualifier field showsRunning
for very long, it probably indicates that the thread is in a PFS wait that cannot be detected by DISPLAY OMVS.Osi Wait
XSYS Message to: sysname
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
When the waiter is waiting on an HSM recall, the file_name will show the directory created by automount, but the devno and ino are unavailable because these numbers are not known until the file system is mounted.
- FILE SYSTEM: file_system_name
- The name of the file system involved, when available.
- HOLDING: File System Latch latchno SHR|EXCL
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by DISPLAY GRS.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- FILE LATCH ACTIVITY:
- USER ASID TCB SHR/EXCL AGE
- This section shows information for file latches. It shows what user and task is holding the latch (HOLDERS), and what users are waiting for it (WAITERS).
- LATCH latchno
- A file latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by Display GRS.
- LSET lset
- Indicates the identifier of the latch set.
- lset
- The identifier that corresponds to the latch. File latches are created in the SYS.BPX.A000.FSLIT.FILESYS.LSN.xx latch set where xx corresponds to LSET.
- devno devno
- Indicates the device number of the file.
- devno
- The device number that corresponds to the file.
- ino ino
- Indicates the inode number of the file.
- ino
- The inode number that corresponds to the file.
- TYPE filetype
- Indicates the file type.
- file_type
- Indicates the file type (DIR, CHARSPEC, REGFILE, FIFO)
- FILE: file_name
- The name of the file (if known) involved in the operation.
- file_name
- Up to 16 characters of the file name when this information is available.
- FILE SYSTEM: file_system_name
- The name of the file system that owns the file involved in the operation.
- HOLDER(S): user asid tcb SHR|EXCL age
- The file system holding the latch:
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- age
- The amount of time the user has held the file system latch for HOLDERS. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
-
- activity
- Description of what the holding task is doing. activity is displayed as
either:
- A wait, such as a Latch Wait
- The type of physical file system (PFS) and the operation that the task was called to do, such as READ, WRITE, MOUNT, or FSYNCH
- pfs_qualifier
- If the activity field shows a PFS, the pfs_qualifier field
shows what the PFS is doing. For example, pfs_qualifier might show:
Running
- If the pfs_qualifier field showsRunning
for very long, it probably indicates that the thread is in a PFS wait that cannot be detected by DISPLAY OMVS.Osi Wait
XSYS Message to: sysname
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
When the waiter is waiting on an HSM recall, the file_name will show the directory created by automount, but the devno and ino are unavailable because these numbers are not known until the file system is mounted.
- WAITER(S): user asid tcb SHR|EXCL age
- The file system holding the latch:
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- age
- The amount of time users have waited for the file system latch for waiters. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- OTHER WAITING THREADS: USER ASID TCB PID AGE
- This section shows the remaining waiters that are waiting for reasons other than the mount
latch, outstanding sysplex messages, or file system latch.
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- pid
- The process ID.
- age
- The amount of time the user has been waiting. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
- activity Description of what the holding task is doing.
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
When the waiter is waiting on an HSM recall, the file_name will show the directory created by automount, but the devno and ino are unavailable because these numbers are not known until the file system is mounted.
- FILE SYSTEM: file_system_name
- The name of the file system involved, when available.
- HOLDING: File System Latch latchno SHR|EXCL
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by DISPLAY GRS.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- OUTSTANDING CROSS SYSTEM MESSAGES:
- SENT SYSPLEX MESSAGES:
- USER ASID TCB FCODE MEMBER REQID MSG TYPE AGE
- This section displays information about the broadcast messages sent to another system in the sysplex for which no reply was yet received.
- user
- The user ID of the address space.
- asid
- The address space ID.
- tcb
- The task.
- fcode
- The function code being sent.
- member
- The sysplex member name of the system or systems that sent the message and from which a reply is outstanding. As replies are received for broadcast messages, member names are removed from the list.
- reqid
- The unique request ID of this message. You can use this value to find the message in the display of RECEIVED SYSPLEX MESSAGES on the system that received the message.
- seqno
- The 4-byte hexadecimal sequence number identifying the unique message buffer. The number is of the form xxyyyyyy, where xx is the system ID of the sender, and yyyyyy is the expected sequence number suffix. This number may be used to correlate with output from message BPXN004I or BPXN005I, if they exist. In some cases, it may be 0.
- msg_type
- The function that the message is performing.
- age
- The amount of time the task has been waiting for a reply. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
- HOLDING: File System Latch latchno SHR|EXCL
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by Display GRS.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
- RECEIVED SYSPLEX MESSAGES:
- on_tcb asid tcb fcode member requid msg_type age
- This section displays the sysplex messages that have arrived at this system, but that were not yet responded to.
- on_tcb
- The worker's task TCB address in the OMVS address space.
- FROM asid
- The address space ID of the message sender.
- FROM tcb
- fcode
- The function code that arrived to be processed. If preceded by an asterisk(*), the received message is an ASYNC message. Otherwise, the received message is a SYNC message.
- FROM member
- The sysplex member name of the system sending the message.
- reqid
- The unique request ID of this message. You can use this value to find the message in the display of SENT SYSPLEX MESSAGES on the system that sent the message.
- msg_type
- The function that the message is performing.
- age
- The amount of time the worker task has been processing the message. If the time exceeds 99 hours, two asterisks (**) appear in the hour position.
- TIME: yyyy/mm/dd hh.mm.ss
- The date and time when the activity started.
- IS DOING: activity / [pfs_qualifier]
-
- activity
- Description of what the worker task is doing. activity is displayed as
either:
- A wait, such as a Latch Wait
- The type of physical file system (PFS) and the operation that the task was called to do, such as READ, WRITE, MOUNT, or FSYNCH
- pfs_qualifier
- If the activity field shows a PFS, the pfs_qualifier field
shows what the PFS is doing. For example, pfs_qualifier might show
Running
,Osi Wait
orXSYS Message to: sysname
.If the pfs_qualifier field shows
Running
for very long, it probably indicates that the thread is in a PFS wait that cannot be detected by DISPLAY OMVS.
- FILE: file_name (devno,ino)
- For operations on a specific file, this line shows the following information:
- file_name
- Up to 16 characters of the file name when this information is available.
- devno
- The device number of the file.
- ino
- The inode number of the file.
- FILE SYSTEM: file_system_name
- The name of the file system involved, when available.
- HOLDING: File System Latch latchno SHR|EXCL
- A file system latch is held by this thread.
- latchno
- The latch number that corresponds to the latch shown by Display GRS.
- SHR|EXCL
- Whether the latch is held in shared or exclusive mode.
System action
The system continues processing.
System programmer response
Use the displayed information to determine if users are hung or waiting for either a mount latch or for replies to sysplex messages. If some tasks appear to be deadlocked, you can use the information in the display to figure out which tasks to cancel, in order to clear up the deadlock.
Module
BPXOMAST
Source
z/OS UNIX System Services kernel (BPX)
Routing Code
-
Descriptor Code
-