USS Mounted File Systems attributes

The UNIX System Services Mounted File Systems attributes provide basic status and activity information for the Mounted File Systems.

Bytes Read/S The number of bytes read per second. A value may not be available for a recently mounted file system. A valid value is an integer. A value of -1 indicates "Unavailable".

Bytes Written/S The number of bytes written per second. A value may not be available for a recently mounted file system. A valid value is an integer. A value of -1 indicates "Unavailable".

DDNAME The DDNAME of the hierarchical file system. This is not applicable to Temporary File Systems, automount directories, or file systems owned by another system (such as in the case of shared HFSs). A valid value is a string of up to 8 characters.

Dir I/Os/S The number of directory I/Os per second. A value may not be available a recently mounted file system. A valid value is an integer. A value of -1 indicates "Unavailable".

File System Name The z/OS name of the hierarchical file system (HFS) dataset that contains the file system. *AMD indicates an automount mount point. /TMP indicates a Temporary File System (TFS). A valid value is a string of up to 44 characters.

Members The number of members in the file system (the number of files plus the number of sub-directories). For Temporary File Systems (TFSs), Unavailable is displayed. A valid value is an integer. A value of -1 indicates "Unavailable".

Mode Indicates whether the file is read or write. A valid value is an integer. Values appear on the workspace as follows:

Mount Point The mount point or file system root. This is sometimes referred to as the mount point path name or the mount point directory. A valid value is a string of up to 1024 characters.

ORIGINNODE The z/OS operating system in your enterprise that an OMEGAMON for z/OS agent is monitoring. A valid value is a string of up to 32 characters.

Own Sys Identifies the system that owns the mount. This is meaningful only in a shared-HFS environment. A valid value is a string of up to 8 characters.

Percent Used The percentage of allocated space in the file system that has been used. For automount file systems, Unavailable is displayed. A valid value is an integer. A value of -1 indicates "Unavailable".

Quiesce Job The name of the job that issued a quiesce for this file system. A valid value is a string of up to 8 characters.

Quiesce PID The process identifier (PID) of the process that issued a quiesce for this file system. Unavailable is displayed when a quiesce has not been issued or when a value cannot be obtained due to a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

Quiesce Sys The name of the system that issued a quiesce for this file system. A valid value is a string of up to 8 characters.

Read I/Os/S The number of data blocks read per second. One or more data blocks may be required to satisfy an application's call to the z/OS UNIX System Services read API. The data block may have been read from DASD or from a cache. The value is the upper bound with respect to actual device I/O caused by read requests to this file system. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

Reads/S The number of reads per second. In this context, a read is an application's call to the z/OS UNIX System Services read API. A value may not be available for a recently mounted file system. A valid value is an integer. A value of -1 indicates "Unavailable".

Security Specifies the security available for this file system. A valid value is an integer. Values appear on the workspace as follows:

SETUID Specifies whether SETUID and SETGID mode bits are honored when a program in the file system is executed. A valid value is an integer. Values appear on the workspace as follows:

Status The status of the file system. A valid value is an integer. Values appear on the workspace as follows:

Status Duration (Seconds) The length of time, in seconds, that the file system has been observed in its current status. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

SYSDSN ENQ Wait Cnt The number of contenders for the SYSDSN resource. The hierarchical file system (HFS) data sets are protected by enqueues using major names SYSZDSN and SYSDSN. Both enqueues are for shared control unless the HFS is mounted as Read/Write (RDWR) in which case the SYSDSN enqueue is for exclusive control. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

Normally, the OMVS address space should hold this resource and there should be no contention; that is, this column normally contains the value 0. If contention exists (that is, this column contains a value of 2 or greater), right-click on a value in the row to navigate to a report showing all contenders for the resource.

SYSDSN Wait Seconds The longest time, in seconds, that any one waiter has been waiting for the SYSDSN resource. The enqueue contention status of the Hierarchical File System (HFS) data sets is observed periodically. A waiter that is waiting for a resource for two consecutive observations is assumed to have been waiting for the resource for the entire observation interval. When the value is ERR, the wait time could not be determined. This value occurs rarely and could be the result of too many resource conflicts. If you are seeing this value occur regularly, you may want to write a situation triggered by this condition to determine the cause of the problem. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

SYSZDSN ENQ Wait Cnt The number of contenders for the SYSZDSN resource. The HFS data sets are protected by enqueues using major names SYSZDSN and SYSDSN. Both enqueues are for shared control unless the HFS is mounted as Read/Write (RDWR) in which case the SYSZDSN enqueue is for exclusive control. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. In this case Unavailable is displayed. A valid value is an integer. A value of -1 indicates "Unavailable".

Normally, the OMVS address space should hold this resource and there should be no contention; that is, this column normally contains the value 0. If contention exists (that is, this column contains a value of 2 or greater), right-click on a value in the row to navigate to a report showing all contenders for the resource.

SYSZDSN Wait Seconds The longest time, in seconds, that any one waiter has been waiting for the SYSZDSN resource. The enqueue contention status of the Hierarchical File System (HFS) data sets is observed periodically. A waiter that is waiting for a resource for two consecutive observations is assumed to have been waiting for the resource for the entire observation interval. When the value is ERR, the wait time could not be determined. This value occurs rarely and could be the result of too many resource conflicts. If you are seeing this value occur regularly, you may want to write a situation triggered by this condition to determine the cause of the problem. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

Total Size (K) The total size of the file system in units of 1K (1024) bytes. Unavailable is displayed when an error was encountered in the determination of this value. A valid value is an integer. A value of -1 indicates "Unavailable".

Total Used (K) The total used space in units of 1K (1024) bytes. Unavailable is displayed when an error was encountered in the determination of this value. A valid value is an integer. A value of -1 indicates "Unavailable".

VOLSER The volume serial number of the volume or volumes on which the hierarchical file system (HFS) resides. Up to 20 volume serial numbers are displayed, separated by blanks. A valid value is a string of up to 140 characters.

Writes I/Os/S The number of data blocks written per second. One or more data blocks may be required to satisfy an application's call to the z/OS UNIX System Services write API. The data block may have been written to DASD or to a cache. The value shown here is the upper bound with respect to actual device I/O caused by write requests to this file system. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".

Writes/S The number of writes per second. In this context, a write is an application's call to the z/OS UNIX System Services write API. A value may not be available for a recently mounted file system or one which is still in the process of being mounted. A valid value is an integer. A value of -1 indicates "Unavailable".