CSA service
The CSA service displays the utilization of:
- Common storage area (CSA)
- Extended common storage area (ECSA)
- Restricted Use common storage area (RUCSA)
- Extended Restricted Use common storage area (ERUCSA)
- System Queue Area (SQA)
- Extended System Queue Area (ESQA)
Syntax
The parameters are defined as follows:
Parameter | Description |
|---|---|
SUM | Provides a summary of common storage (CSA, RUCSA, and SQA) usage |
MAP | Provides a detailed display of CSA/ECSA usage by subpool and storage key |
BOTH | Provides both the summary and the detailed displays |
Example 1
To display a detailed description of CSA and ECSA usage, enter:
CSA,MAP
AMTCMBI SP/Key 0 1 2 3 4 5 6 7 8+ Total
AMTCMCI ......................... Non-Extended CSA ....................
AMTCMDI 227 17Ki 0 0 0 0 0 9Ki 0 0 26Ki
AMTCMDI 228 5Ki 3Ki 0 0 13Ki 0 52Ki 0 0 74Ki
AMTCMDI 231 752 0 0 0 0 0 9Ki 160 0 10Ki
AMTCMDI 241 610Ki 37Ki 34Ki 0 64Ki 5Ki 7Ki 0 0 758Ki
AMTCMEI Tot 633Ki 40Ki 34Ki 0 77Ki 5Ki 78Ki 160 0 868Ki
AMTCMCI ........................... Extended CSA ......................
AMTCMDI 227 154Ki 147Ki 0 0 193Ki 4Ki 2Mi 0 0 3Mi
AMTCMDI 228 5Mi 21Ki 167Ki 0 21Mi 2Mi 1Mi 0 0 29Mi
AMTCMDI 231 2Mi 37Ki 840 0 3Mi 2Mi 1Mi 13Ki 0 9Mi
AMTCMDI 241 33Mi 2Mi 109Ki 0 11Mi 830Ki 2Mi 1Mi 0 49Mi
AMTCMEI Tot 40Mi 2Mi 278Ki 0 34Mi 5Mi 7Mi 1Mi 0 90Mi
Legend:
- This line and the line above it represent the column labels:
- SP stands for Subpool (first column).
- Key describes the rest of the columns, which are key numbers.
Above each key is a mnemonic describing the system component that allocates storage in that key.
Mnemonic
Description
0
Supervisor and other system functions that require access to all areas of storage
1
Job scheduler, job entry subsystem (JES), APC, and TSO/E
2
(reserved)
3
Availability manager (AVM)
4
(reserved)
5
Date management, including Open/Close/EOV
6
VTAM
7
IMS and Db2
8+
User Key CSA or RUCSA
- Each subpool is listed on one line.
The subpool number appears first, followed by the amount of storage, if any, allocated in that key within the subpool. - The total amount of storage allocated with that key, and the sum allocated for all keys.
Example 2
To display an overview of CSA usage, enter:
CSA SUM
AMTCM1I Size 2196Ki 301Mi [1]
AMTCM2I Converted to SQA 0 0.00% 0 0.00% [2]
AMTCM3I Allocated 868Ki 39.51% 92470Ki 30.04% [3]
AMTCMHI High-water mark 878Ki 39.99% 94120Ki 30.58% [4]
AMTCM4I Available 1328Ki 60.49% 210Mi 69.96% [5]
AMTCMFI Largest avail blk 1168Ki 53.19% 204Mi 67.88%
AMTCMZI
AMTCMRI ------RUCSA----- -----ERUCSA------
AMTCMQI Size 1024Ki 1024Ki [1]
AMTCMTI Allocated 0 0.00% 0 0.00% [3]
AMTCMUI High-water mark 0 0.00% 0 0.00% [4]
AMTCMVI Available 1024Ki 100.00% 1024Ki 100.00% [5]
AMTCMWI Largest avail blk 1024Ki 100.00% 1024Ki 100.00%
AMTCMZI
AMTCM5I -------SQA------ ------ESQA-------
AMTCM6I Size (Incl Conv) 1684Ki 57932Ki [1]
AMTCM7I Obtained from CSA 0 0.00% 0 0.00% [2]
AMTCM8I Allocated 1214Ki 72.07% 21558Ki 37.21% [3]
AMTCMII High-water mark 1644Ki 97.63% 23182Ki 40.02% [4]
AMTCM9I Available 470Ki 27.93% 36374Ki 62.79% [5]
Legend:
Mnemonic | Description |
|---|---|
1 | Total amount of CSA, ECSA, RUCSA, ERUCSA, SQA, or ESQA defined |
2 | Amount of space converted to SQA/ESQA and the percentage of total CSA/ECSA |
3 | Total amount of space currently used, and the percentage of total CSA, ECSA, RUCSA, or ERUCSA |
4 | Highest utilization level since the system was IPLed |
5 | Total amount of storage available to be allocated |