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

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Table 38 Parameters for the FCWITHDR Comman d (Version 2)

Parameter

Value

Description

SDEVN

Source devi ce

number.

Specify the number (device address) of the S-VOL on which you

want to perform the FCWITHDR command.

TDEVN

Target device

number.

Specify the number (device address) of the T-VOL on which you

want to perform the FCWITHDR command.

DEVN

Device number.

Specifythe number (deviceaddress) of thedeviceonwhich you

want to perform the FCWITHDR command with the ACTION

parameter.

DDSW

YES

The relationships established on the volume speciﬁed as the copy

source by SDEVN are withdrawn. The relationships are withdrawn

after the contents of the volume speciﬁed as the copy target by

TDEVN is ﬁxe

Default set ting. The relationships established on the copy target

are all withdrawn. The relationship is not established when th e

copy target is online.

XTNTLST

Extents (copy

range)

Speciﬁes the extent (the range to withdraw the relation) for the

starting and ending addresses of the source and the starting and

ending addresses of the target with CCHH. Up to 32 extents can

speciﬁed. When XTNTLST is not speciﬁed, the relationships

all the tracks are withdrawn.

ACTION THAW

Resume the write operation from the host to th e volumes which

belong to the

same CU of the device speciﬁed by the DEVN

parameter.

Note:

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

must

be the same.

When the FC W ITHDR command is executed with the DDSW parameter set to NO or without setting

the

DDSW parameter, the relationships speciﬁed in the command are withdrawn when the comm and is

executed. When the FCWITHDR command to withdraw relationships established for c opy operations set

COPY mode is executed while the backg round copy operation is in progress, the relationships speciﬁed

in the

command are withdrawn after the ongoing background copy operation is stopped and cancelled.

When the FCWITHDR command for withdrawing relationships established for copy operations set in

COPY mode is executed with the DDSW parameter set to YES, the relationships established with the

speciﬁed copy source extent(s) on the volume speciﬁed by SDEVN are withdrawn a f ter the background

copy is completed. When the FCWITHDR command for withdrawing relationships established for copy

operations set in NOCOPY mode is executed with the DDSW parameter set to YES, the relationships

established with the speciﬁed copy source extent(s) on the volume speciﬁed by SDEVN are withdrawn

only after the copy operation mode is switched to COPY mode, followed by the execution and completion

of the

background co py operation. When the FCW ITHDR com m and is executed with the DDSW

parameter set to YES, the relationships established with the speciﬁed copy target extent(s) on the volume

speciﬁed by SDEVN are withdrawn.

When the FCWITHDR comm and is executed without any relevant relationships to withdraw, the command

will do nothing and end normally. Moreover, the FCWITHDR command will do nothing and will end

normally when the existing relationships do not fall within the range speciﬁed by the XTN TLST parameter.

There are several effective combination patterns for the parameters of the FCWITHDR command. All

combinations other than those shown in Table 39 on page 85 will result in rejection of this command.

Table 39 on page 85 describes the parameters for the FCWITHDR command and the applicable

combinations.

Performing Version 2 Operations