The USS 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 recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
Bytes Written/S The number of bytes written per second. A value may not be available for recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
DDNAME The DDNAME of the hierarchical file system. This attribute is not applicable to Temporary File Systems, automount directories, or file systems owned by another system (such as in the case of shared HFSs). Valid value is an 8-character string.
Dir I/Os/S The number of directory I/Os per second. A value may not be available for recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
File System Name z/OS name of the HFS dataset that contains the file system. *AMD indicates an automount mount point. /TMP indicates a Temporary File System (TFS). Valid value is a string with maximum length of 44.
ORIGINNODE The monitored z/OS operating system on which UNIX System Services is hosted. Valid value is a character string with a maximum length of 32 bytes.
Members The number of members in the file system (number of files plus number of subdirectories). For Temporary File Systems (TFSs), Not available is displayed. Valid value is a 4-byte integer.
Mode Indicates whether the file is read or write. Valid values are READ or RDWR.
Mount Point Mount point or file system root. Sometimes referred to as the mount point path name or mount point directory. Valid value is a string with a maximum length of 1024.
Own Sys Identifies the system that 'owns' the mount.
Percent Used Percentage of allocated space in the file system that has been used. For automount file systems, Not available is displayed. Valid value is a 4-byte integer.
Quiesce Job Name of the job that issued a quiesce for this file system. Valid value is an 8-byte character string.
Quiesce PID Process ID of the process that issued a quiesce for this file system. Valid value is a 4-byte integer.
Quiesce Sys Name of the system that issued a quiesce for this file system. Valid value is an 8-byte character string.
Read I/Os/S 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 shown here 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 recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
Reads/S 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 recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
Security Specifies the security available for this file system. Valid values are SECURITY and NOSECURITY.
SETUID Specifies whether SETUID and SETGID mode bits are honored when a program in the file system is executed. Valid values are SETUID and NOSETUID.
Status Status of the file system. Valid values are:
Status Duration The length of time in seconds that the file system has been observed in its current status Valid value is a 4-byte integer or Not available.
SYSZDSN ENQ Wait Ct 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 that case, the SYSZDSN enqueue is for EXCLUSIVE control.
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. Valid value is a 4-byte integer.
SYSDSN ENQ Wait Ct The number of contenders for the SYSDSN 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 that case, the SYSDSN enqueue is for EXCLUSIVE control. Valid value is a 4-byte integer or Not available.
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. Valid value is a 4-byte integer or Not available.
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 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. If ERR appears in this column, 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.
(See also SYSZDSN Wait Ct, above, for general information about the enqueues the OMVS address space uses for HFS data sets.) Valid value is a 4-byte integer or Not available.
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. If ERR appears in this column, 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.
(See also SYSDSN Wait Ct, above, for general information about the enqueues the OMVS address space uses for HFS data sets.) Valid value is a 4-byte integer or Not available.
Total Size The total size of the file system in units of 1K (1024) bytes. Not available may be displayed if an error was encountered when determining this value. Valid value is a 4-byte integer.
Total Used Total used space in units of 1K (1024) bytes. Not available may be displayed if an error was encountered when determining this value. Valid value is a 4-byte integer.
VOLSER The volume serial number of the volume or volumes on which the HFS resides. Up to 20 volsers can be displayed. Valid value is a string of length 139.
Write I/Os/S 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 recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.
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 recently mounted file systems. If a value is not available, Not available is displayed. Valid value is a 4-byte integer.