beautypg.com

HP B6960-90078 User Manual

Page 292

background image

Backup

Pre- and Post-Exec Commands

Chapter 5

262

✓ The

pre-

and

post-exec

processes operate in background mode.

Therefore, do not use any interactive commands for the

pre-

and

post-exec

processing.

✓ If a command writes any text to

stdout

, this text is received by the

Disk Agent, sent to the Session Manager, and written to the
database. A

stderr

is redirected to

/dev/null

. You can redirect it to

stdout

to get error messages logged to the database.

✓ The

pre-

and

post-exec

commands for an object have to be located

on the client where the Disk Agent is running.

✓ The

pre-

and

post-exec

commands must be executable and specified

with the full pathname.

✓ You can disable

pre-

and

post-exec

scripts by adding the line

OB2OEXECOFF=1

into the

omnirc

file on any 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
.