HP XP7 Storage User Manual

Page 48

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When the DFSMSdss command COPY FULL is executed, all the datasets on the S-VOL are copied
to the T-VOL (see the following figure).; Volume area that is not allocated as a dataset is not copied.
When the FCFULLVOLUMERELATION parameter is specified, all areas on the S-VOL, including
areas that are not allocated as a dataset, are copied to the T-VOL.

Figure 23 Copying all datasets using the COPY FULL command

If the capacity of the copy source volume is larger than the capacity of the copy target volume,
and if REQUIRED is specified for the FASTREPLICATION parameter, the ADR920I message displays
and the COPY command ends abnormally.

If the COPY command ends abnormally. perform one of the following tasks:

Select the volume that 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.

Using ICKDSF to establish Compatible FlashCopy relationships by volumes

The following table shows the parameters you can use with the ICKDSF command when you
establish Compatible FlashCopy relationships by volumes.

Table 23 Parameters for the ICKDSF command (FLASHCPY ESTABLISH)

Description

Value

Parameter

Specifies the JCL statement identifying the volume. If the OS of
the host server is MVS, this parameter or the UNITADDRESS
parameter is required.

JCL statement

DDNAME or DNAME

Specifies the SYSNAME in the ASSGN system control statement.
If the OS of the host server is VSE, this parameter is required.

SYSNAME

SYSNAME

Specifies the device number (device address) of the S-VOL on
which you want to perform the FLASHCPY ESTABLISH command.

Source device number

UNITADDRESS, UNITADDR, or UNIT

If the OS of the host server is MVS, this parameter or the
DDNAME parameter is required.

Specifies the CU number, LDEV number, and device number
(device address) of the T-VOL on which you want to perform the
FLASHCPY ESTABLISH command. This parameter is required.

CU number

LDEV number

Target device number

TARGETVOL or TGTVOL

Establishes the relationship which covers the entire volume. The
relationship will be maintained even after the background copying

YES

CHANOERECORDINO,
CHANOERCD, or CHRCD

process is completed, and if the S-VOL and the T-VOL are
updated, the updated part will be managed as the differential
data.

48

Performing Compatible FlashCopy operations

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