HP StorageWorks XP Remote Web Console Software User Manual
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Table 51 Parameters for the DFSMSdss Command (Version 2/Volume Copying) (continued)
Description
Value
Parameter
This option is for temporarily suspending the write operation from the
host to the S-VOLs when you establish relationships to maintain the
consistency of data. To resume the write operation from the host to the
S-VOLs, use the DFSMSdss CGCREATE command or the TSO FCWITHDR
command.
N/A
FCCGFREEZE
To use the Incremental FlashCopy function, use FCINCREMENTAL. For
details about the Incremental FlashCopy function, see the
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:
•
You can 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.
2
N/A
FCINCREMENTAL
Use FCINCREMENTALLAST to delete the relationship after completing
the copy operation of the differential data.
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
and 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.
N/A
FCINCREMENTALLAST
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 Version 2 copy operation fails.
You can also specify the amount of error information you want to receive.
FRMSG
3
DEBUG
Use FCTOPPRCPRIMARY to access the FlashCopy to PPRC Primary Volume
function or the FlashCopy to Universal Replicator for Mainframe Primary
Volume function. Specify this parameter when Version 2 T-VOLs and
TrueCopy for Mainframe M-VOLs (or Universal Replicator for Mainframe
P-VOL) are shared.
PRESMIRNONE
FCTOPPRCPRIMARY
Establish the relationship using the Preserve Mirror FlashCopy function.
If the relationship cannot be established, the command is rejected.
PRESMIRREQ
Establish the relationship using the Preserve Mirror FlashCopy function.
If the relationship cannot be established, the copy operation is executed
using the existing FlashCopy-to-PPRC Primary Volume function.
PRESMIRRPREF
1
COPYVOLID and DUMPCONDITIONING cannot be specified at the same time.
2
Data cannot be written on the T-VOL while differential data is managed.
3
For detailed information, see the IBM documentation.
Establishing Version 2 Relationships
89