HP StorageWorks XP24000 for FlashCopy Mirroring Software User's Guide (T5240-96001, June 2007)

Compared Item
Version 1 Version 2
DFSMSdss command
The COPY FULL command is used to
create a Version 1 relationship with
theentirevolume.
The COPY FULL command is used to
create a Version 2 relationship with
theentirevolume.
The COPY DS command is used to
create a Version 2 relationship with
the specified dataset.
When the DFSMSdss
command is
issued
again during
background copy
operation
If the copy op
eration is required for the
Version 1 vol
ume
during the copying
process, th
e
normal copy operation
will be perf
ormed via the host.
If the copy ope
ration is required for the
Version 2 vol
ume
during the copying
process, the
DFSMSdss command will
withdraw th
e
relationship, create the
relationsh
ip
again, and then perform
the copy ope
ration.
FCESTABL command
• The XTNTLST parameter is not
supported.
• The XTNTLST parameter is
supported, so tha t the extents at
different positions can be copied.
FCWITHDR command
• The DDSW parameter is not
supported. Relationships can be
withdrawn regardless of whether
the
copy operation is set to COPY
or
NOCOPY mode.
•
The XTNTLST parameter is not
supported.
• The DDSW parameter is supported.
When
DDSW = YES: The
relationships created with the
extents on the device specified by
SDEVN are withdrawn. When
the pairs created with the source
extents for which the copy mode is
set
to COPY, the relationships are
withdrawn after the background
copy is completed.
When the
pairs created with the
source extents for which the copy
mode is set to NOCOPY, the
relationships are not withdrawn
until
you switch the copy mode
to COPY and complete the
background copy. Relationships
established with the copy target
extents are withdrawn immediately.
When
DDSW = NO: The pairs
created with the extents on the
device specified by TD EVN are
withdrawn immediately.
•
The XTNTLST parameter is
supported, so tha t the extents
at
different p ositions can be
withdrawn.
FCQUERY command
The following information can be
displayed:
•
Volume status.
• Whether
the volume status is
simplex or not.
•
Whether any Version 1
relationships are established
or
not.
•
Rate of progress (%) of background
copy.
The following information can be
displayed:
•
Number of active relationships.
•
Maximum number of relationships
that can be established with the
device specified by DEVN.
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Comparison of Versions 1 a nd 2