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

Table 59 Differences of copying process between IBM FlashCopy and HP compatible FlashCopy
(continued)
HP compatible FlashCopyIBM FlashCopyCompared item
Regardless of whether differential data exists, the
Reverse Restore operation cannot be performed on
relationship created by Incremental
FlashCopy function.
the relationship after Restore or Reverse Restore is
performed with NOCOPY specified.
If differential data does not exist, the
Reverse Restore operation can be
performed on the relationship after
Restore or Reverse Restore is
performed with NOCOPY specified.
When you perform the Fast Reverse Restore
specifying the option of the Incremental FlashCopy
Regardless of whether or not the
option of the Incremental FlashCopy
Fast Reverse Restore
function, only the updated part of the S-VOL or thefunction is specified, if you perform
T-VOL before then will be copied from the T-VOL to
the S-VOL.
the Fast Reverse Restore, the part of
data which is copied from the S-VOL
When you perform the Fast Reverse Restore without
specifying the option of the Incremental FlashCopy
to the T-VOL will be copied from the
T-VOL to the S-VOL.
function, 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 Compatible FlashCopy(R) pair in NOCOPY
mode is created using TCz pair M-VOL, the copy
When a FlashCopy pair in NOCOPY
mode is created using a PPRC P-VOL,
Copying in NOCOPY
mode in FlashCopy to
operation is executed to Compatible FlashCopy(R)the data is not copied fromPPRC Primary Volume
function pair T-VOL and TCz pair R-VOL. Copy operation isFlashCopy S-VOL to FlashCopy
not executed even if Compatible FlashCopy(R) pair
is deleted.
T-VOL, and the FlashCopy S-VOL
data is copied to the PPRC S-VOL.
The value of BCE or BCP displays as F(FALSE)
though the value of "#TRACKS YET TO BE COPIED"
When the FlashCopy pair is deleted,
the PPRC P-VOL data is copied to the
PPRC S-VOL data.
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 Compatible FlashCopy(R) pair in NOCOPY
mode is created using URz pair P-VOL, the copy
-Copying in NOCOPY
mode in FlashCopy to Cnt
operation is executed on Compatible FlashCopy(R)Ac-J Z Primary Volume
function pair T-VOL and URz pair S-VOL. Copy operation is
not executed even if Compatible FlashCopy(R) pair
is deleted.
The value of BCE or BCP displays 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.
Failover command is received, but after that,
Compatible FlashCopy(R) pair T-VOL will be used
Receives Failover/Failback
command.
Receiving
Failover/Failback
as TCz R-VOL. Therefore Failback command is
rejected.
command to Cnt Ac-S Z
pairs in FlashCopy to PPRC
Primary Volume function
ReverseResync command is rejected because
Compatible FlashCopy(R) pair T-VOL will be used
as URz pair S-VOL.
-Executing ReverseResync
command on Cnt Ac-J Z
pairs in FlashCopy to Cnt
Ac-J Z Primary Volume
function
Ends abnormally with CC=12. To avoid abnormal
ending, see “Requirements of Compatible
FlashCopy SE” (page 103).
Ends Normally.Execute ICKDSF command
for Compatible FlashCopy
to Cnt Ac-S Z pair M-VOL
in pending status
98 Feature comparison with IBM product