HP P9000 for Compatible FlashCopy Mirroring User Guide (AV400-96388, October 2011)

If the capacity of the copy source volume is larger than the capacity of the copy target volume,
and if REQUIRED is specified for the FASTREPLICATION parameter, the ADR920I message occurs
and the COPY command will end abnormally. In this case, perform one of the following:
• Select the volume that has the same capacity as the copy source volume, and specify it as the
copy target volume.
• Do not specify the FASTREPLICATION parameter.
• Specify PREFERRED for the FASTREPLICATION parameter.
• Specify NONE for the FASTREPLICATION parameter.
For detailed information about the ADR920I message, see the IBM document.
Establishing Compatible FlashCopy relationships by volumes using ICKDSF command
The following table lists the parameters you can use with the ICKDSF command when you establish
Compatible FlashCopy relationships by volumes.
Table 23 Parameters for the ICKDSF command (FLASHCPY ESTABLISH)
DescriptionValueParameter
Specifies the JCL statement identifying the volume. If the OS
of the host server is MVS, this parameter or the
UNITADDRESS parameter is required.
JCL statementDDNAME or DNAME
Specifies the SYSNAME in the ASSGN system control
statement. If the OS of the host server is VSE, this parameter
is required.
SYSNAMESYSNAME
Specifies the device number (device address) of the S-VOL
on which you want to perform the FLASHCPY ESTABLISH
Source device
number
UNITADDRESS, UNITADDR, or
UNIT
command. If the OS of the host server is MVS, this parameter
or the DDNAME parameter is required.
Specifies the CU number, LDEV number, and device number
(device address) of the T-VOL on which you want to perform
CU number
LDEV number
TARGETVOL or TGTVOL
the FLASHCPY ESTABLISH command. This parameter is
required.
Target device
number
Establishes the relationship which covers the entire volume.
The relationship will be maintained even after the
YESCHANGERECORDING,
CHANGERCD, or CHRCD
background copying process is completed, and if the S-VOL
and the T-VOL are updated, the updated part will be
managed as the differential data.
Establishes the relationship which covers the entire volume.
The relationship will be deleted after the background
copying process is completed.
NO
The default setting of this parameter is NO.
If the relationship is maintained after the background
copying process is completed, the T-VOL cannot be written
YESINHIBITTARGETWRITES,
INHIBWRTS, or NOTGTWR
until the relationship is deleted, or the command releasing
the prohibition of the writing is executed.
Even when the relationship is maintained after the
background copying process is completed, the T-VOL can
be written.
NO
Default setting of this parameter is NO.
Establishes the relationship which covers the entire volume,
and execute the background copying process.
COPYMODE
The default setting of this parameter is COPY.
46 Performing Compatible FlashCopy operations