gtpo1m28Operations

ZBUFC STATUS-Display Caching Status

Use this command to the display current caching status information for a 3880 record cache (RC) or 3990 record cache subsystem (RCS) control unit. The display shows the device operating modes, storage and interface status, and the storage size allocated to each TPF block size.

Requirements and Restrictions

For devices that are attached to concurrency filter lock facility (CFLF) control units, this command resets the high watermark count of locks that is used by data collection. Therefore, do not enter this command while the data collection function is running.

Format




sda
is the 3- to 4-digit hexadecimal symbolic address of a record caching device.

RCS
displays global 3990 RCS information from the internal control information that is maintained by the TPF system.

Additional Information

Online help information is available for this command. To display the help information, enter one of the following:

ZBUFC HELP

ZBUFC ?

Examples

The current record caching status information for the specified 3990 RCS control unit is displayed in the following example.

+--------------------------------------------------------------------------------+
|User:   ZBUFC STATUS 04E7                                                       |
|                                                                                |
|System: BUFC0004I 13.52.46 STATUS FOR DEVICE-1E53 RCS SSID-0003                 |
|                                                                                |
|        DEVICE COUNT -  32     STATISTICS COUNT/DEVICE -   4                    |
|          CONFIGURED SS STORAGE   - 02000000                                    |
|          AVAILABLE SS STORAGE    - 01DC4000                                    |
|          PINNED SS STORAGE       - 00000000                                    |
|          OFFLINE SS STORAGE      - 00000000                                    |
|          CONFIGURED NVS STORAGE  - 00400000                                    |
|          PINNED NVS STORAGE      - 00000000                                    |
|                                                                                |
|        CACHE ALLOCATION:  (RECORD SLOT SIZES 1-3)                              |
|          SIZE    - TRACK     381    1055     4096                              |
|          RATIO   -    25      25      25       25                              |
|          LOCKS   -     4                                                       |
|                                                                                |
|        SUBSYSTEM STATUS:                                                       |
|          SUBSYSTEM CACHING       - ACTIVE                                      |
|          SD CACHING CONDITIONS   - NONE                                        |
|          CACHE FAST WRITE        - DISABLED                                    |
|          CACHE FAST WRITE ID     - 0008                                        |
|          NONVOLATILE STORAGE     - DEACTIVATED-HOST REQUEST                    |
|          NVS CACHING CONDITIONS  - NONE                                        |
|          FAST WRITE SUSPENDED    - NO                                          |
|          SS DISABLE REQUESTED    - YES                                         |
|          QUEUE THRESHOLD ACTIVE  - YES                                         |
|        DEVICE STATUS:                                                          |
|          DEVICE CACHING          - ACTIVE                                      |
|          DEVICE DASD FAST WRITE  - ACTIVE                                      |
|          PINNED DATA             - NONE                                        |
|          RECORD MODE             - ALLOWED                                     |
|          DATA LOSS EXPOSURE      - NO                                          |
|                                                                                |
+--------------------------------------------------------------------------------+

Global 3990 RCS information that is maintained by the TPF system is displayed in the following example.

+--------------------------------------------------------------------------------+
|User:   ZBUFC STATUS RCS                                                        |
|                                                                                |
|System: BUFC0005I 13.53.25 RCS GLOBAL STATUS DISPLAY                            |
|                                                                                |
|        ACTIVE SUBSYSTEM COUNT    -     1                                       |
|        I/O QUEUE THRESHOLD VALUE - 16384                                       |
|        COMPLEX DISABLE REQUESTED - YES                                         |
|        RETENTIVE OVERRIDE ACTIVE - NO                                          |
|        ACTIVE 'BUFC' UTILITY     - NONE                                        |
+--------------------------------------------------------------------------------+

Related Information

See the following for more information about record caching: