FDRCRYFM RESTORE Statement
RESTORE statement
The RESTORE statement creates a Encryption Keyfile from a backup copy created by the FDRCRYFM DUMP statement. If the data set to which FDRCRYFM is restoring is newly allocated, it does not have to be preinitialized with the FORMAT statement because the RESTORE operation includes the functions of FORMAT. The step JCL must include a TAPE1 DD statement to specify the backup (previously created by the DUMP statement of FDRCRYFM) to be restored.
RESTORE statement syntax
RESTORE | |
|---|---|
,B=n | |
,DISABLE=([DYNALLOC][ERASE][RESERVE]) | |
,DUMPDEVICE=DISK|TAPE | |
,ENABLE=([DYNALLOC][ERASE][RESERVE]) | |
,RECS=nnnnnnn |
The DUMP and RESTORE statements of FDRCRYFM can be used to move the Encryption Keyfile to a different device type (such as 3380 to 3390) or to change its size or blocking factor.
RESTORE Statement Operands
B=
n
Specifies the number of blocks to be placed on each track, from 2 through 5. FDRCRYFM automatically calculates the best blocksize for this device type.
Default: 2 (half track blocking) unless overridden in the FDR Global Options.
DISABLE=
ENABLE=
The options specified are disabled or enabled for this RESTORE operation. Multiple options are enclosed in parentheses and separated by commas. The options and their meaning if enabled are:
DYNALLOC
Dynamically allocate the Encryption Keyfile specified in the FDR Global Options, if the ENCRYPT DD statement is omitted.
ERASE
Allows an existing, formatted Encryption Keyfile to be restored. If disabled, a restore can only be done to a newly allocated Encryption Keyfile.
RESERVE
Protects the Encryption Keyfile with a RESERVE against the volume on which it resides.
DUMPDEVICE=
Specifies the device type that is eligible to be used as a RESTORE medium.
DISK
Reads the backup from either tape or DASD devices.
TAPE
Reads the backup from tape devices only.
Default: TAPE.
RECS=
nnnnnnn
Specifies the minimum number of key entries that are formatted during the restore of the Encryption Keyfile. See “RECS=” in FDRCRYFM-FORMAT-Statement for details.
Default: The number of records that were formatted on the dumped Archive Control File or 2000 (unless overridden in the FDR Global Options), whichever is larger.