A.7.4 acsnap start (SnapOPC+ copy start command) [Excluding Linux 5 for Intel Itanium]

NAME

acsnap start - Start of SnapOPC+

SYNOPSIS

acsnap start -g COPY-GROUP [-p PAIR | -v VOLUME-NAME] [-r][-xml]
acsnap start -estimate -v VOLUME-NAME [-xml]

DESCRIPTION

The SnapOPC+ is executed onto a specified copy group or copy pair.
It is also possible to start to estimate the number of updated blocks generated for the copy source volume.

If the -p option is not specified, a copy destination is automatically selected and SnapOPC+ is started.If all copy destination volumes are generation-managed, the oldest snap generation is cancelled and selected as a copy destination.

If the -p option is specified, SnapOPC+ is started onto a specified copy destination.If a past snap generation (excluding the oldest snap generation) is specified as a copy destination, this command ends abnormally.

This command is supported in Windows, Solaris, Linux 5 (for x86, for Intel64).

OPTIONS

-g COPY-GROUP: This option specifies the copy group name.

-p PAIR: This option specifies a copy pair.

-r: This option performs a copy in the reverse direction to the direction that has been specified.
The latest snap generation is selected as a copy source when the copy pair is not specified.

-v VOLUME-NAME

Specify a copy-source logical volume. The copy destination is selected automatically.
When starting to estimate the amount of snap data volume updates, specify a copy-source logical volume.

The following is an example of a format to specify a logical volume.

(1) ETERNUS name
(2) Logical volume number

The extent start position and the extent size can be specified.

(1) ETERNUS name
(2) Logical volume number
(3) Extent start position (block units)
(4) Extent size (number of blocks)

A character string starting with "0x" expresses a hexadecimal value.

-estimate: This option starts the estimation of amount of snap data volume updates.

-xml: This option specifies when displaying the result of the command execution by the XML format.

EXIT STATUS

=0 : Completed successfully
>0 : Terminated abnormally

EXAMPLES

Start the SnapOPC+

> acsnap start -g group01

E4000/0x1:E4000/0x6
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

E4000/0x2:E4000/0x7
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

E4000/0x3:E4000/0x8
# DATE : 2008/06/24 16:28:00 - << SnapOPCP Started >>

  Succeeded : 3
  Failed    : 0

Start the estimation of the amount of snap data volume updates.
```
> acsnap start -estimate -v E4000/0x1
Successful completion
```

NOTES

This command is not available for ETERNUS disk storage systems registered as a remote device.
This command terminates abnormally if the copy destination logical volume of the specified copy group or pair is protected by "A.4.1 acinhibit set (Volume protection settings command) [Excluding Linux 5 for Intel Itanium]".