Defining Structured Infostorage Records › RESTYPE Record-Resident Type List Support

RESTYPE Record-Resident Type List Support

This record automatically builds a resident type list for the specified resource types when you initialize the service machine. You can specify up to 64 separate resource types. Resident type lists accommodate masked rule names and locate resource rules faster.

You must build a resident type list for resource types if you want to mask the $KEY parameter in resource rules. There are two ways to do this:

• You can use the RESTYPE record to automatically build a permanent list for up to 64 resource types
• You can use the ACFSERVE RELOAD RESOURCE command to manually build a temporary type list. If you change a resource rule or write a new rule, issue the ACFSERVE RELOAD RESOURCE command to activate the changed or new rule.

To build a resident type list for each of the default type codes, enter:

insert restype
 MYSYSID / RESTYPE LAST CHANGED BY MAINT ON 02/01/91‑14:48
          SIZE(64K) TYPES(ACT ALG DIA GRP IUC PGR VMC)

You can also build a resident type list for any resource types you have defined locally. For example, to include the resource type LCL with the default resource types, enter:

change restype types(lcl) add
 MYSYSID / RESTYPE LAST CHANGED BY MAINT ON 02/01/91‑14:50
          SIZE(64K) TYPES(ACT ALG DIA GRP IUC LCL PGR VMC)

Fields

TYPES=(ACT,ALG,DIA,DSP,GRP,IUC,PGR,VMC|$type1, $type2,...,$type64)

Specifies the three‑character resource type code of each resident type automatically built during initialization of the CA ACF2 for VM service machine. Each type code corresponds to the three‑character $TYPE parameter specified in a set of related resource rules. You can specify up to 64 type codes.

SIZE(64K|nnnnK|nnnnM)

Specifies the amount of storage reserved for the resource rule cache. This parameter requires a suffix of K or M. Use K to specify K bytes, and M to specify megabytes. The resource rule cache is in the CA ACF2 for VM service machine. It also improves overall system performance when the CA ACF2 for VM resource support protects resources CA ACF2 for VM or your site defined. The default is SIZE=64K. The minimum value is 16K. The maximum value is 14336K (14Mb), but we recommend that you use 4096K (4Mb) as the maximum value. Do not specify a cache size less than 16K. An extremely large cache might require a larger storage area for the CA ACF2 for VM service machine. You can also specify a null size (SIZE=()) to prevent use of a resource rule cache. You cannot change this value with an ACFSERVE RELOAD command. Instead, use ACFSERVE RESTART to modify it.

You can use ACFSERVE commands to delete a resident type list, create a new resident type list, and to reload a resident type list. See the “Using the ACFSERVE Commands” chapter for more information and command syntax.

SHOW Subcommand

The SHOW STATE subcommand displays the names of the resident resource types that currently reside on the service machine. For more detailed information on the types of rule caches and the RESTYPE VMO record, see the
Systems Programmer Guide.