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Pairs are withdrawn regardless of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SDEVN are withdrawn.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pairs are withdrawn after the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NOCOPY, the pairs are not withdrawn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extents are withdrawn immediately.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by TDEVN are withdrawn immediately.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

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