5.3 CCKDCOMP (CCKD DASD f
ile compression utility)
5.3.1 Function
The CCKDCOMP utility removes all free space from a compressed or shadow CKD DASD emulation file.
If level is specified then the CCKDCDSK utility is called first with the specified level; this is a short-hand
method to call both functions in one utility call.
5.3.2 Syntax
Descriptive
CCKDCOMP [-option [-option ... ]] filename
Diagram
Êʬ¬¬ CCKDCOMP ¬¬¬§¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬§¬¬¬ filename ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ÊÍ
-option ¬¬¬¨¬¬¬¯
5.3.3 Parameter
options:
-v
Display version information and then exit.
-f
Force check even if OPENED bit is on.
-level
The level of checking that is to be performed. The higher the level the longer the
integrity check takes. The level is any number from 1 - 4.
- Level 1 performs a minimal check. Device headers are verified, free space is veri-
fied, primary lookup table and secondary lookup tables are verified.
- Level 2 performs a normal check. These are the same checks as in level 1 plus all
5-byte track headers are verified.
- Level 3 performs the maximum checking. These are the same checks as in level 1
plus all track images are read, uncompressed and verified.
- Level 4 recovers everything.
arguments:
filename
Name of the DASD image file to be compressed.
