HP StorageWorks XP Remote Web Console Software - Manual (Page 151)

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 entire extents specified as the
source. When the copy target for the
relationship is only partly included in
the specified extent, the command does
not withdraw the relationship.
CAUTION: If one of the following
operations has been performed, the
creation of relationships may fail:
•
A scratch operation
• Datasets deletion
•
Volume initialization
Therefore, if any of these operations
have been performed, do either of the
following:
• Use the FCWITHDR command to
withdraw the relationship.
•
Wait until the background copy
operation finishes and the
relationship disappears.
The command withdraws the copy
targets for relationships existing within
the extents specified as the source,
provided that:
• When the copy target for the
relationship is only partly included
in the specified extent, only the
area that is included in the extent
is withdrawn.
• When only the central part of the
copy target for the relationship is
included in the specified extent,
only the area that is included is
withdrawn. The remaining area of
the relationship is divided up.
FCWITHDR command
(DDSW = YES, XTNTLST parameter
specified)
The command withdraws the copy
targets for relationships existing within
the extents specified as the target.
When the copy target for the
relationship is only partly included in
the extent specified as the target, the
command does not withdraw the
relationship.
CAUTION: If one of the following
operations has been performed,
creation of the relationships may fail:
•
A scratch operation
•
Datasets deletion
• Volume initialization
Therefore, if any of these operations
have been performed, do either of the
following:
•
Use the FCWITHDR command to
withdraw the relationship.
•
Wait until the background copy
operation finishes and the
relationship disappears.
The command withdraws the copy
targets for pairs existing within the
extents specified as the target,
provided that:
• When the copy target for the
relationship is only partly included
in the extent specified as the target,
only the area that is included in the
extent is withdrawn.
• When only the central part of the
copy target for the relationship is
included in the extent specified as
the target, only the area that is
included is withdrawn. The
remaining area of the relationship
is divided up.
FCWITHDR command
(DDSW = NO, XTNTLST parameter
specified)
Not supported. The command will finish
abnormally. Relationships will not be
deleted. The command will finish normally.
Relationships will not be deleted. REMOVEFCPY
(ICKDSF CONTROL command)
Part of the volume relationship will be
withdrawn. The operation when you establish a
dataset relationship by using the
DFSMSdss
command, and specify the
source or target volume for a volume
relationship as the copy target.
Comparison of Relationship Releasing Process 151