Page Set Long-Term History attributes (z/OS systems only)
Use the Page Set Long-Term History attributes to detect problems with page sets. This attribute group provides page set allocation and usage information for a queue manager on a z/OS system. These attributes are informational only; they cannot be used to create situations.
The Page Set Long-Term History attributes are available on z/OS systems only.
% Buffer Pool In Use The percentage of the total buffer pool using pages from this page set. The valid format is a decimal (formatted to 1 decimal place) in the range 0.0 - 100.0.
% Pages In Use The percentage of allocated pages currently in use. The valid format is a decimal (formatted to 1 decimal place) in the range 0.0 - 100.0.
Allocated Data Pages The number of data pages allocated for the current page set. The valid format is an integer.
Buffers In Use The number of pages from this page set that currently reside in the buffer pool. The valid format is an integer.
Extents Since Restart The number of DASD extents acquired since this queue manager was last restarted. The valid format is an integer.
Host Name The name of the system on which this queue manager is running. On z/OS systems, this is the SMF ID. The valid format is an alphanumeric string of up to 48 case-sensitive characters.
Interval Length The interval time over which statistics were taken. The valid format is in the form MMM:SS where M = Minute, S = Second.
Interval Time The size of the current sampling interval, in hundredths of seconds. For example, .50 is half a second. This value is determined by the control parameters your site set when configuring the IBM MQ Monitoring agent; it is usually specified as 60.00 (60 seconds). The valid format is a decimal (formatted to 2 decimal places).
Non-Persistent Pages The number of data pages currently in use that contain nonpersistent data. (A data page may contain only persistent or nonpersistent messages.) The valid format is an integer.
Origin Node The IBM MQ Monitoring agent-assigned name of the node on which the data for the queue manager originates.
On z/OS systems, this name takes the form qmgr:smfid:MQESA, where qmgr is the name of the queue manager, and smfid is the z/OS system ID or SMF ID.
Page Set ID The page set identifier (a 2-digit integer of 00 - 99). Valid values include 00, 01, 02...98, 99.
Persistent Pages The number of data pages currently in use that contain persistent data. (A data page may contain only persistent or nonpersistent messages.) The valid format is an integer.
QMgr Name The name assigned to this queue manager. The valid format is an alphanumeric string of up to 48 case-sensitive characters.
Queue Messages The number of queued messages written to this page set (includes only messages on monitored queues). The valid format is an integer.
Queues Assigned The number of monitored queues assigned to this page set. The valid format is an integer.
Sample Date & Time The date and time of the sample. The valid format is the standard 16-character date/time format (CYYMMDDHHMMSSmmm), where the strings have the following meanings:
- C
- Century (0 for 20th, 1 for 21st)
- YY
- Year
- MM
- Month
- DD
- Day
- HH
- Hour
- MM
- Minute
- SS
- Second
- mmm
- Millisecond
Status The status of the current page set. Valid values are Available = 1, Full = 2, and NotAvail = 3.
Total Extents The total number of DASD extents in this page set. The valid format is an integer.