gtpo1m1zOperations

ZBUFC ALLOCATE-Specify Cache and Lock Allocation

Use this command to update the control information with new target values for either cache or lock space.

Requirements and Restrictions

Format




RC381
changes the record slot allocation for 381-byte records for 3880 RC control units.

RC1055
changes the record slot allocation for 1055-byte records for 3880 RC control units.

RC4096
changes the record slot allocation for 4096-byte (4-KB) records for 3880 RC control units.

ratio
is a decimal ratio value from 1-255 for the record slot allocation.

RCBUF-count
changes the buffer counts for the 3880 record cache subsystem, where count is a decimal buffer count value from 1-16.

INIT
initializes the current and target allocation values of the record cache subsystem status table (SSST).
Note:
You can specify this parameter only when you are prompted during restart.

RCS381
changes the record slot allocation for 381-byte records for 3990 RCS control units.

RCS1055
changes the record slot allocation for 1055-byte records for 3990 RCS control units.

RCS4096
changes the record slot allocation for 4096-byte (4-KB) records for 3990 RCS control units.

RCSBUF
changes the buffer counts for the 3990 record cache subsystem.

pp
is a percentage from 0-95%.
Note:
For the RCSBUF parameter, you can specify a percentage value from 5-25%.

Locks-num
changes the number of lock groups that are allocated, where number is a decimal number from 1-64.
Note:
Locks are allocated in groups of 256. For example, LOCKS-1 allocates 256 locks and LOCKS-2 allocates 512 locks.

Additional Information

Examples

The target allocation ratios used to partition 3880 RC control units are defined in the following example.

+--------------------------------------------------------------------------------+
|User:   ZBUFC ALLOC RC381-09 RC1055-08 RC4096-07 RCBUF-03                       |
|                                                                                |
|System: BUFC0037I 07.48.38 ALLOCATE - CACHE ALLOCATION PENDING                  |
+--------------------------------------------------------------------------------+

The target allocation ratios used to partition 3990 RCS control units are defined in the following example.

+--------------------------------------------------------------------------------+
|User:   ZBUFC ALLOC RCS381-25 RCS1055-30 RCS4096-20 RCSBUF-25                   |
|                                                                                |
|System: BUFC0037I 07.49.23 ALLOCATE - CACHE ALLOCATION PENDING                  |
+--------------------------------------------------------------------------------+

Related Information

See the following for more information about record caching: