HP XP7 Storage - Manual (Page 104)

Table 59 Comparison of copying processes (continued)
HP Compatible FlashCopy IBM FlashCopy Compared item
operation can be performed on the
relationship created by the Incremental created by the Incremental FlashCopy function with
NOCOPY specified or on the relationship after
Restore or Reverse Restore is performed.
FlashCopy function with NOCOPY
specified or on the relationship after
Restore or Reverse Restore is performed.
When you perform the Fast Reverse Restore specifying
the option of the Incremental FlashCopy function, only Regardless of whether or not the option
of the Incremental FlashCopy function is Fast Reverse Restore
the updated part of the S-VOL or the T-VOL before
then will be copied from the T-VOL to the S-VOL. specified, if you perform the Fast Reverse
Restore, the part of data which is copied
When you perform the Fast Reverse Restore without
specifying the option of the Incremental FlashCopy
from the S-VOL 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 relationship in
NOCOPY mode is created using Cnt Ac-S Z P-VOL, When a FlashCopy relationship in
NOCOPY mode is created using a PPRC Copying in NOCOPY mode in
FlashCopy to PPRC primary
volume function
the copy operation is executed to Compatible P-VOL, the data is not copied from
FlashCopy relationship T-VOL and Cnt Ac-S Z pair FlashCopy S-VOL to FlashCopy T-VOL,
S-VOL. Copy operation is not executed even if
Compatible FlashCopy relationship is deleted. and the FlashCopy S-VOL data is copied
to the PPRC S-VOL. When the FlashCopy
The value of BCE or BCP displays as F(FALSE) though
the value of "#TRACKS YET TO BE COPIED"
relationship 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 relationship in
NOCOPY mode is created using Cnt Ac-J Z P-VOL, - Copying in NOCOPY mode in
FlashCopy to Cnt Ac-J Z primary
volume function
the copy operation is executed on Compatible
FlashCopy relationship T-VOL and Cnt Ac-J Z pair
S-VOL. Copy operation is not executed even if
Compatible FlashCopy relationship 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 relationship T-VOL will be used Receives Failover/Failback command. Receiving Failover/Failback
command to Cnt Ac-S Z pairs in
as Cnt Ac-S Z pair S-VOL. Therefore Failback
command is rejected. FlashCopy to PPRC primary
volume function
ReverseResync command is rejected because
Compatible FlashCopy relationship T-VOL will be used
as Cnt Ac-J Z 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. Ends Normally. Execute ICKDSF command for
Compatible FlashCopy to Cnt
Ac-S Z P-VOL in pending status
Data can be copied from the Compatible FlashCopy
relationship S-VOL to T-VOL but not to the Cnt Ac-S Z Neither FlashCopy data nor PPRC data
can be copied. Establishing a Cnt Ac-S Z pair
in NOCOPY mode whose P-VOL
S-VOL. In this state if you release the Compatible is a Compatible FlashCopy
FlashCopy relationship, the data of Cnt Ac-S Z P-VOL
and S-VOL will be different. relationship T-VOL that you
establish in NOCOPY mode
104 Feature comparison with IBM product