HP XP7 Storage User Manual
Page 46
Table 22 Parameters for DFSMdss, Volume copying (continued)
Description
Value
Parameter
Executes Compatible FlashCopy copy operation as a priority. If
Compatible FlashCopy cannot be used, executes Concurrent Copy or
copy operation via the host.
PREFERRED
FASTREPLICATION
When FASTREPLICATION is not specified, the copy operation will be
performed in the same way when PREFERRED is specified.
Executes Compatible FlashCopy copy operation unconditionally. If
Compatible FlashCopy cannot be used, reports error.
REQUIRED
Does not execute Compatible FlashCopy copy operation.
NONE
Creates a Compatible FlashCopy relationship for all areas of the S-VOL
(areas that have datasets and areas that do not have datasets are
included).
N/A
FCFULLVOLUMERELATION
Replaces the S-VOL and T-VOL of a Compatible FlashCopy relationship
with each other, and then performs the FastReverseRestore function.
N/A
FCFASTREVERSERESTORE
Temporarily suspends the write operation from the host to the S-VOLs
when you establish relationships to maintain the consistency of data.
N/A
FCCGFREEZE
To resume the write operation from the host to the S-VOLs, use the
DFSMSdss CGCREATE command or the TSO FCWITHDR command.
To use the Incremental FlashCopy function, use FCINCREMENTAL. For
details about the Incremental FlashCopy function, see the
.
N/A
FCINCREMENTAL
When FCINCREMENTAL is specified, a relationship covering the entire
volume is created. This relationship is maintained after the background
copying process is completed. When FCINCREMENTAL is specified,
the following additional functionality becomes available.
•
Manage the differential data between the S-VOL and the T-VOL.
•
When you re-execute the COPY command, only the differential data
will be copied to the T-VOL.
If you reverse the S-VOL and the T-VOL and execute the COPY command
(Reverse Restore), only the differential data will be copied to the resulting
T-VOL.
Use FCINCREMENTALLAST to delete the relationship after completing
the copy operation of the differential data.
N/A
FCINCREMENTALLAST
When you re-execute the COPY command by specifying
FCINCREMENTALLAST on a relationship created by specifying
FCINCREMENTAL, only the differential data will be copied to the T-VOL.
After the copy has completed, the relationship is be deleted.
If you reverse the S-VOL and the T-VOL and execute the COPY command
(Reverse Restore), only the differential data will be copied to the resulting
T-VOL. After Reverse Restore has completed, the relationship will be
deleted.
Use FCINCRVERIFY to verify the condition established when re-executing
the COPY command by specifying FCINCREMENTAL on the relationship
created by using FCINCREMENTAL.
N/A
FCINCRVERIFY
The copy operation will be executed only when you specify the S-VOL
and the T-VOL in the same way as when the relationship was created.
NOREVERSE
The copy operation will be executed only when you specify the S-VOL
and the T-VOL in the opposite way as when the relationship was created.
REVERSE
By specifying this option, you will be able to receive information
describing the error and its causes in case the Compatible FlashCopy
FRMSG
2
DEBUG
copy operation fails. You can also specify the amount of error
information you want to receive.
46
Performing Compatible FlashCopy operations