KM5 Common Storage SubKey attributes

These attributes provide information by subpool and storage protect key for each common storage area (CSA, ECSA, SQA, and ESQA).

Allocated Percent Area The amount of storage allocated to the subpool as a percentage of the total area, to one decimal point.

Area The area of common storage for which the data is collected: CSA, ECSA, SQA, or ESQA.

Extents Number of noncontinguous blocks of storage allocated to the subpool.

Free Storage Percent Unused storage as a percentage of the area, to one decimal place.

Free Storage Total (K) The sum of unused storage in the area, in kilobytes.

Largest Free Block Largest unused piece of storage in the subpool allocation.

Largest Free Block Pct Allocated Largest unused piece of storage in the subpool as a percentage of the subpool allocation, to one decimal place.

Managed System The name of the managed system where the data was collected. The name has the format <plexname>:<smfid>:MVSSYS, where <plexname> is the Sysplex to which this LPAR belongs and <smfid> is the SMF identifier for the system.

Record Type The type of record, either detail (containing subpool usage data) or summary (total allocated and free storage).

Storage Allocated The amount of storage allocated to the subpool, in kilobytes.

Storage Key A unique storage key that protects each frame of central storage from unauthorized use.

Storage Used (K) The amount of the subpool allocation that has been used to satisfy GETMAIN requests, in kilobytes.

Storage Used Percent Allocated Percentage of the subpool allocation that has been used to satisfy GETMAIN requests in the subpool, to one decimal place.

Storage Used Percent Area Percentage of the total area that has been used to satisfy GETMAIN requests, to one decimal place.

Subpool CSA is divided into subpools 227, 228, 231, and 241; SQA has subpools 226, 239, and 245. Although related by common area, these subpools have different characteristics. CSA subpools 227 and 228, for example, are fixed in storage, while subpools 231 and 241 are pageable.

Total Size (K) Total size of the area, in kilobytes.