HP StorageWorks XP Remote Web Console Software User Manual
Page 126
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126 ShadowImage for the XP128/XP1024/XP10000/XP12000
8
Using with other copy
solutions
FlashCopy Mirror pair can share the
volume with other copy solutions such
as SIz, TCz, XRC, or Concurrent Copy.
FlashCopy Mirror Version 2 pair can
share the volume only with SIz.
9
DFSMSdss command
COPYFULL command is used to create
a FlashCopy Mirror pair with the entire
volume.
COPYFULL command is used to create
a FlashCopy Mirror Version 2 pair with
the entire volume.
COPY DS command is used to create a
FlashCopy Mirror Version 2 pair with
specified dataset.
10
When DFSMSdss
command is issued
again during
background copy
operation
If the copy operation is required for the
FlashCopy Mirror volume during the
copying process, the normal copy
operation will be performed via the
host.
If the copy operation is required for the
FlashCopy Mirror Version 2 volume
during the copying process, DFSMSdss
command will withdraw the pair, and
create the pair again, and then
perform the copy operation.
11
TSO command
FCESTABL
EXTENTS parameter
Up to 5 extents can be specified.
Up to 32 extents can be specified.
12
TSO command
FCESTABL
XTNTLST parameter
Not supported.
Extents at different positions can be
copied.
Up to 32 extents can be specified.
13
TSO command
FCWITHDR
DDSW parameter
Pairs are withdrawn regardless of
whether the copy operation is set to
COPY or NOCOPY mode.
The DDSW parameter is not supported.
When DDSW = YES: Pairs created with
the extents on the device specified by
SDEVN are withdrawn. When the
pairs created with the source extents
which copy mode is set to COPY, the
pairs are withdrawn after the
background copy is completed.
When the pairs created with the source
extents which copy mode is set to
NOCOPY, the pairs are not withdrawn
until switch the copy mode to COPY
and complete the background copy.
Pairs established with the copy target
extents are withdrawn immediately.
When DDSW = NO: The pairs created
with the extents on the device specified
by TDEVN are withdrawn immediately.
14
TSO command
FCWITHDR
XTNTLST parameter
Not supported.
Can withdraw pairs created with
extents located at different positions.
15
Items displayed by
FCQUERY command
Whether the volume status is simplex or
not.
Whether any FlashCopy Mirror pairs
are created or not.
Rate of progress (%) of background
copy.
Number of active pairs.
Maximum number of pairs that can be
created with the device specified by
DEVN.
Table 59
Differences Between FlashCopy Mirror and FlashCopy Mirror Version 2 (continued)
No.
Compared item
FlashCopy Mirror
FlashCopy Mirror Version 2