Real Storage attributes

The Real Storage attribute group provides information about the use of real storage on a z/OS system in terms of various types of frame counts, slot counts, and paging rates.

Area End Address The ending address of an area, in hexadecimal. The end address of the high private area (above the bar area) is shown as 16EB. For a Storage Type of Extended Nucleus, the Area End Address is the higher of the end address of the Extended Read Only Nucleus and the Extended Read Write Nucleus areas. For a Storage Type of Nucleus, Area End Address is the higher of the end address of the Read Only Nucleus and the Read Write Nucleus areas.

Area Start Address The starting address of an area, in hexadecimal. The starting address of the high private area (above the bar area) is shown as 2G. 6. For a Storage Type of Extended Nucleus, Area Start Address is the lower of the start address of the Extended Read Only Nucleus and the Extended Read Write Nucleus areas. For a Storage Type of Nucleus, Area Start Address is the lower of the start address of the Read Only Nucleus and the Read Write Nucleus areas.

Available Frames The number of pageable frames available to the system. Valid value is a 4-byte integer.

Available Frames 64 The number of pageable frames available to the system. Valid value is an 8-byte integer.

Dmem Min Requested 2G Total amount of minimum requested Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Number of Jobs Total number of jobs using Dedicated Memory. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total 2G Total amount of Dedicated Memory defined in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total 2G Online Total amount of online Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total Assignable 2G Total amount of available Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total Assigned 2G Total amount assigned (to a job step) Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total Available 2G Total amount of assignable Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total Requested 2G Total amount of requested Dedicated Memory in 2G units. Valid value is an 8-byte integer. Unavailable = -1

Dmem Total Used 2G Total amount of Dedicated Memory used as 2G frames. Valid value is an 8-byte integer. Unavailable = -1

Dmem Used 1M Fixed Total amount of Dedicated Memory used as 1M fixed frames. Valid value is an 8-byte integer. Unavailable = -1

Dmem Used 1M Pageable Total amount of Dedicated Memory used as 1M pageable frames. (IARV64 GETSTORE PAGEFRAMESIZE=PAGEABLE1MEG) Valid value is an 8-byte integer. Unavailable = -1

Dmem Used 4K Frames Total amount of Dedicated Memory used as 4K frames. Valid value is an 8-byte integer. Unavailable = -1

Dmem Used 4K DAT Total amount of Dedicated Memory used to back DAT tables (system use). Valid value is an 8-byte integer. Unavailable = -1

Dmem Online Used Percent Percentage of online dedicated memory in use * 10 (nnn.n) Unavailable = -1

Frames Used Percent Percentage of frames used (online frames - available frames)/online frames * 100), to one decimal point.

Managed System A z/OS operating system in your enterprise that IBM® Z OMEGAMON® AI for z/OS® is monitoring. Valid value is a character string with a maximum length of 32 bytes.

Migration Age The time in seconds that has passed since the oldest frame of expanded storage was last referenced. This column is applicable to expanded storage, but not to central storage. Valid value is a 4-byte integer. This attribute is deprecated in version 4.1.

Migration Rate The number of pages per second that are being moved from expanded to auxiliary storage. This column is applicable to expanded storage, but not to central storage. Valid value is a 4-byte integer to one decimal precision. This attribute is deprecated in version 4.1.

Offline Frames The number of frames of this type that have been varied offline either by means of a z/OS command or by the system itself. Valid value is a 4-byte integer.

Offline Frames 64 The number of frames of this type that have been varied offline either by means of a z/OS command or by the system itself. Valid value is an 8-byte integer.

Online Frames The number of storage frames of this type that are online or accessible to this processor. Valid value is a 4-byte integer.

Online Frames 64 The number of storage frames of this type that are online or accessible to this processor. Valid value is an 8-byte integer.

Pages Read From Expanded The number of pages per second that are being moved from expanded to central storage. Valid value is a 4-byte integer. This attribute is deprecated in version 4.1.

Pages Written To Expanded The number of pages per second that are being moved from central to expanded storage. Valid value is a 4-byte integer. This attribute is deprecated in version 4.1.

Storage Type Type of storage area. Valid values are:

Total Fixed Frames Total number of fixed frames for this image. The Total Fixed Frames value is the sum of the Total Fixed Frames Allocated column for all the storage areas listed in the Real Storage view. Valid value is a 4-byte integer.

Total Fixed Frames 64 Total number of fixed frames for this image. The Total Fixed Frames value is the sum of the Total Fixed Frames Allocated column for all the storage areas listed in the Real Storage view. Valid value is an 8-byte integer.

Total Fixed Frames Allocated Number of fixed frames allocated to an area. Valid value is a 4-byte integer.

Total Fixed Frames Allocated 64 Number of fixed frames allocated to an area. Valid value is an 8-byte integer.

Total Frames Total number of frames for this image. The Total Frames value is the sum of the Total Frames Allocated column for all the storage areas listed in the Real Central Storage view. Valid value is a 4-byte integer.

Total Frames 64 Total number of frames for this image. The Total Frames value is the sum of the Total Frames Allocated column for all the storage areas listed in the Real Central Storage view. Valid value is an 8-byte integer.

Total Frames Allocated The total number of frames allocated to an area. Valid value is a 4-byte integer.

Total Frames Allocated 64 The total number of frames allocated to an area. Valid value is an 8-byte integer.

Total Kilobytes Allocated The size of the area, in kilobytes. Valid value is a 4-byte integer.

Unreferenced Interval Count Represents the time in seconds for a complete steal cycle. A complete steal cycle is the time the stealing routine needs to check all frames in the system. When there is a demand for storage, the stealing routine tests the reference bit of a frame, decides whether to steal the frame, and schedules the page-out. Valid value is a 4-byte integer.