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

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S-VOL

Dataset 3

T-VOL

Dataset 3

Copy by Version 2

Dataset 1

Dataset 2

Dataset 1

Dataset 2

Figure 38 Copying All Data s ets Using the C OPY FULL Command (Version 2 )

Note:

If the capacity of the copy source volume is larger than the c apacity of the copy target volume, and

REQUIRED is speciﬁed for the FASTREPLICATION parameter, the ADR920I message occurs and the

COPY c ommand will end abnormally. In that case, do one of the following:

• Select the volume which has the same capacity as the copy source volume, and specify it as the

copy target volume.

• Do not specify the FASTREPLICATION parameter.

• Specify PREFERRED for the FASTREPLICATION parameter.

• Specify NONE for the FASTREPLICATION parameter.

For detailed information about the ADR920I message, see the IBM document.

Establishing Version 2 Relationships by Extents Usin g FCESTABL

When you establish Version 2 relationships by extents with the FCESTABL command, the following

paramete

rs are available in addition to the parameters in Table 34 on page 76.

Table 36

P arameters for the FCESTABL Command (Version 2 / Dataset Copying)

Parameter

Value

Description

EXTENTS

Extents (copy

range)

Speciﬁes th e extent (copy range) by setting the same starting and

ending addresses of the source and target with CCHH (cylinder and

head numbers). From the copy source, the speciﬁed data is copied

to the

same offset position on the copy target. Up to 32 extents

can be speciﬁed. When EXTENTS is not speciﬁed, the data on all

the tracks is copied.

XTNTLST

Extents (copy

range)

Speciﬁes the extent (copy range) by setting the starting and ending

addre

sses of the source and the starting and ending addresses of

the ta

rget with CCHH (cylinder a nd head numbers). From the copy

source, the speciﬁed data is copied to a different offset position on

the copy target. Up to 3 2 extents can be speciﬁed. When XTNTLST

speciﬁed, the data on all the tracks is copied.

Note

To execute the XTNTLST parameter, the size of the copy source extent and the copy target extent

must be the same.

When the F CESTABL com m and with the EXTENTS parameter speciﬁed is executed, only the data on the

cop

source extent(s) speciﬁed by the EXTENTS parameter is copied from the volume speciﬁed as the

source by SDEVN to the volume speciﬁed as the target by TDEVN. For example, when you copy only

dataset 2, the copy operation processes as shown in Figure 39 on page 80. When you do not specify

the

EXTENTS pa rameter, the entire source volume is copied to the target volume.

XP24000 for FlashCopy Mirroring Software User's Guide