Comparison of relationship releasing process – HP StorageWorks XP Remote Web Console Software User Manual
Page 144
Table 74 Differences of Copying Process Between IBM FlashCopy and Version 2 (continued)
Version 2
IBM FlashCopy
Compared Item
Copy operation is not executed even if
Version 2 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 for
which the copy has not been
completed.
Failover
command is received, but
after that, the Cersion 2 pair T-VOL will
Receives Failover/Failback command.
Receiving Failover/Failback command
to TrueCopy for Mainframe pairs in
FlashCopy to PPRC Primary Volume
function
be used as TrueCopy for Mainframe
R-VOL. Therefore, Failback command
is rejected.
ReverseResync
command is rejected
because Version 2 pair T-VOL will be
Not supported
Executing ReverseResync command
on Universal Replicator for Mainframe
used as Universal Replicator for
Mainframe pair S-VOL.
pairs in FlashCopy to Universal
Replicator for Mainframe Primary
Volume function
Ends abnormally with CC=12. To avoid
abnormal ending, see
.
Ends normally.
Execute ICKDSF command for Version
2 to TrueCopy for Mainframe pair
M-VOL in pending status.
Data can be copied from the Version
2 pair S-VOL to T-VOL but not to the
Neither FlashCopy data nor PPRC
data can be copied.
Establishing a TrueCopy for
Mainframe pair in NOCOPY mode
TrueCopy for Mainframe R-VOL. In this
whose M-VOL is a Version 2 pair
state, if you release the Version 2 pair,
T-VOL that you establish in NOCOPY
mode
the data of TrueCopy for Mainframe
M-VOL and R-VOL will be different.
Data can be copied from the Version
2 pair S-VOL to T-VOL but not to the
Not supported
Establishing a Universal Replicator for
Mainframe pair in NOCOPY mode
Universal Replicator for Mainframe
whose P-VOL is a Version 2 pair T-VOL
that you establish in NOCOPY mode
S-VOL. In this state if you release the
Version 2 pair, the data of Universal
Replicator for Mainframe P-VOL and
S-VOL will be different.
Comparison of Relationship Releasing Process
shows the relationship releasing process between IBM FlashCopy and HP Version 2.
Table 75 Differences of Relationship Releasing Process Between IBM FlashCopy and Version 2
Version 2
IBM FlashCopy
Compared Item
The command withdraws the copy
targets for relationships existing within
The command withdraws the copy
targets for relationships existing within
FCWITHDR
command
(DDSW = YES, XTNTLST parameter
specified)
the entire extents specified as the
source. When the copy target for the
the extents specified as the source,
provided that:
relationship is only partly included in
•
When the copy target for the
relationship is only partly included the specified extent, the command does
not withdraw the relationship.
in the specified extent, only the
144 Feature Comparison with the IBM Product