HP B6960-90078 User Manual
Page 284
Backup
Pre- and Post-Exec Commands
Chapter 5
254
✓ The execution of
pre-
and
post-exec
commands is implemented
using the Windows pipe mechanism. All processes started in the
pre-
or
post-exec
functions must finish before processing continues.
✓ A
pre-
or
post-exec
command must return a non-negative value
upon successful completion.
✓ If a
pre-exec
command fails (returns a value less than 0), the status
of the backup session is set to
Failed
and the session is aborted.
✓ If a
post-exec
command fails (returns a value less than 0), the
backup session status is set to
Completed with errors
.
✓ The
pre-
and
post-exec
commands for a backup specification are by
default NOT executed during a preview of the backup. This behavior
is defined by the
ExecScriptOnPreview
variable in the global options
file. See “Global Options File” on page 523 for details on how to
modify these values.
✓
Pre-
and
post-exec
commands are handled in the same way as
commands entered at the DOS prompt. Therefore, special characters,
such as the pipe ( | ) and the redirect symbols (>, <) are not allowed.
✓ While
pre-
or
post-exec
commands are running, the backup session
cannot be aborted.
✓ The
pre-
and
post-exec
commands run in the background mode.
Therefore, do not use any commands that require user interaction.
✓ Standard output of the
pre-
and
post-exec
commands is written to
the IDB as messages and shown on the monitor screen of the Data
Protector GUI.
✓ You can disable a session’s
pre-
and
post-exec
command execution
on the Cell Manager by setting
SmDisableScript
global option to 1.
✓ You can disable remote session
pre-
and
post-exec
command
execution on any client by adding
OB2REXECOFF=1
into the
omnirc
file
on the specific client.
✓ You can secure the client by specifying which Cell Managers are
allowed to access the client. Only permitted Cell Managers will be
able to execute
pre-
and
post-exec
commands on the client. For
more information on securing a client, refer to the HP OpenView
Storage Data Protector Installation and Licensing Guide.