z/VM: CP Commands and Utilities Reference - z/VM - IBM

CPCACHE
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CPCAche
Authorization
Purpose
Operands
fn
*
ft
*
A
fm
*
Privilege Class: A
Use CPCACHE to cause CP to cache a file on a CP-accessed minidisk. When you
cache a file, CP moves the file into storage where it can find and access the file
quickly. Use the CPCACHE command after you use the CPLISTFILE command to
identify any files on the minidisk that are used frequently. After caching, you have
faster access to your heavily-used files. You can also use a CP_ACCESS statement
in the system configuration file to identify a minidisk to CP. For more information on
the CPACCESS command, see page “CPACCESS” on page 79.You can use the
CPCACHE command to identify frequently used files on minidisks that have been
specified with a CP_ACCESS statement. For more information on the CP_ACCESS
statement, see the z/VM: CP Planning and Administration book.
fn
* is the file name of the file that you want CP to cache. If you specify an asterisk
(*), CP caches all file names. You can use generic file names to request a
specific subset of files. A generic file name is a 1- to 8-character string with
asterisks (*) in place of 1 or more arbitrary characters and percent signs (%) in
place of exactly 1 arbitrary character. For example:
cpcache hc%p* *
caches all files that start with HC and have P as their fourth character.
ft
* is the file type of the file that you want CP to cache. If you specify an asterisk
(*), CP caches all file types. You can use generic file types to request a specific
subset of files. A generic file type is a 1- to 8-character string with asterisks (*)
in place of 1 or more arbitrary characters and percent signs (%) in place of
exactly 1 arbitrary character. For example,
cpcache * con%%g *
CPCACHE
caches all files whose file types start with CON and have G as their sixth (and
last) character.
fm
* is the file mode letter of the minidisk that you had CP access. If omitted, the
default is A. If you specify an asterisk (*), CP caches the specified files on all
accessed disks.
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Chapter 2. CP Commands 83