HP StorageWorks XP Remote Web Console Software - Manual (Page 143)

Table 74 Differences of Copying Process Between IBM FlashCopy and Version 2 (continued)
Version 2 IBM FlashCopy Compared Item
and other times the data is not copied
to the target.
Relationships are maintained even
when all the copy operations processed
by an On-demand copy are completed. Relationships are withdrawn
automatically when all the copy
operations processed by an
On-demand copy are completed. Status of the pairs when on-demand
copy is processed
Not supported. Supported. Establishing relationships by using the
TSO
command when you specify a
The command will be rejected. The ACTION (FREEZE) option can be
used.
copy target volume of PPRC as a
source volume
After all the copy operations processed
by on-demand copy are completed, the After all the copy operations
processed by on-demand copy is Reverse Restore
Reverse Restore operation cannot be completed, the Reverse Restore
performed on the relationship created
by the Incremental FlashCopy function. operation can be performed on the
relationship created by Incremental
FlashCopy function.
Regardless of whether differential data
exists, the Reverse Restore operation
If differential data does not exist, the
Reverse Restore operation can be
cannot be performed on the relationship
performed on the relationship after after Restore or Reverse Restore is
performed with NOCOPY specified.
Restore or Reverse Restore is
performed with NOCOPY specified.
When you perform the Fast Reverse
Restore by specifying the Incremental Whether or not the option of the
Incremental FlashCopy function is Fast Reverse Restore
FlashCopy function option, only the specified, if you perform the Fast
updated part of the S-VOL or the T-VOL Reverse Restore, the part of the data
will be copied from the T-VOL to the
S-VOL. that is copied from the S-VOL to the
T-VOL will be copied from the T-VOL
to the S-VOL.
When you perform the Fast Reverse
Restore without specifying the
Incremental FlashCopy function option,
only the copied part of data from the
S-VOL to the T-VOL will be copied
before the Fast Reverse Restore is
executed.
When Version 2 pair in NOCOPY
mode is created using TrueCopy for When a FlashCopy pair in NOCOPY
mode is created using a PPRC P-VOL, Copying in NOCOPY mode in
FlashCopy to PPRC Primary Volume
function
Mainframe pair M-VOL, the copy the data is not copied from the
operation is executed to Version 2 pair FlashCopy S-VOL to the FlashCopy
T-VOL and TrueCopy for Mainframe T-VOL, and the FlashCopy S-VOL data
pair R-VOL. Copy operation is not is copied to the PPRC S-VOL. When
executed even if Version 2 pair is
deleted. the FlashCopy pair is deleted, the
PPRC P-VOL data is copied to the
PPRC S-VOL data.
The value of BCE or BCP will be
displayed as F(FALSE) though the value
of #TRACKS YET TO BE COPIED
displayed by the FLASHCPY QUERY
RELATIONS
command of ICKDSF
changes, depending on the number of
tracks in which the copy has not been
completed.
When Version 2 pair in NOCOPY
mode is created using Universal Not supported Copying in NOCOPY mode in
FlashCopy to Universal Replicator for
Mainframe Primary Volume function
Replicator for Mainframe pair P-VOL,
the copy operation is executed on
Version 2 pair T-VOL and Universal
Replicator for Mainframe pair S-VOL.
Comparison of Copying Process 143