INITIALIZE-PUBLIC-VOLUME - Initialize public disks

The statement INITIALIZE-PUBLIC-VOLUME is used to initialize a public disk. The statement is executed immediately rather than being transferred to the current sequence of statements.

INITIALIZE-PUBLIC-VOLUME                                                                                                                        

VOLUME=vsn
,UNIT=mn
,OVERWRITE-DISK=*ANY / vsn
,FORMAT=*UNCHANGED / *K / *NK(...)
	*NK(...)
		|	PHYSICAL-BLOCK-SIZE=*2K(...) / *4K(...)
		|		*2K(...)
		|			|	ALLOCATION-UNIT=6 / 8 / 64
		|		*4K(...)
		|			|	ALLOCATION-UNIT=8 / 64
,CAPACITY=*STD / <integer 1000..2 147 483 647>
,FUNCTION=*CREATE-LABELS-ONLY / *FORMAT-DISK

VOLUME=vsn
Specifies the six-digit VSN of the disk to be initialized.

UNIT=mn
Two- or four-digit mnemonic of the device on which the disk is mounted.

OVERWRITE-DISK
Specifies whether the disk is to be checked before being used.

OVERWRITE-DISK=*ANY
This disk is initialized without the existing (old) VSNs being checked.

OVERWRITE-DISK=vsn
This disk is only initialized if the existing VSN tallies with that specified by VOLUME=vsn.

FORMAT
Defines the disk format of the disk to be initialized.

FORMAT=*UNCHANGED
This disk is initialized with its previous format; it is initialized in format K if it is unformatted.

FORMAT=*K
The disk is initialized with format K.

 

FORMAT=*NK(...)
The disk is initialized with format NK.

PHYSICAL-BLOCK-SIZE
Defines the physical block size on the NK disk.

PHYSICAL-BLOCK-SIZE=*2K(...)
NK2 disk (default value)
The minimum transfer unit between disk and memory is 2 Kb.

ALLOCATION-UNIT=6 / 8 / 64
The unit (size of the smallest file) should be 6 Kb (default value), 8 or 64 Kb in size.

PHYSICAL-BLOCK-SIZE=*4K(...)
NK4 disk The minimum transfer unit is 4 Kb.

ALLOCATION-UNIT=8 / 64
The unit (size of the smallest file) should be 8 or 64 Kb in size.

CAPACITY=
Specifies the maximum disk capacity. This operand is evaluated only for disk type A5 (D3435). Disks of other types are always initialized with their maximum capacity. This operand is mainly used for disk migration.

CAPACITY=*STD
The disk is made available with its maximum capacity.

CAPACITY=<integer 1000..2 147 483 647>
The disk is made available with the capacity specified (in PAM pages). The specification may not exceed the maximum capacity of the disk.

FUNCTION
Specifies whether the disk is to be initialized with a specific bit pattern.

FUNCTION=*CREATE-LABELS-ONLY
Only the labels are generated

FUNCTION=*FORMAT-DISK
The disk is initialized with a specific bit pattern