HP Serveur lame HP ProLiant BL465c Gen8 User Manual
Page 46
Figure 16 Example of a system configured to use VSS to back up data
Requirements and precautions for backing up file systems
This subsection explains requirements and precautions when using VSS to back up file systems.
•
P9000 RMXP Shadow Copy Provider must be installed both in the file server and backup server
in advance. Note that, if P9000 RMXP Shadow Copy Provider has not been installed on those
servers when Application Agent is installed, P9000 RMXP Shadow Copy Provider will be installed
together with Application Agent.
•
The backup server is required even if data is not backed up to tape, because the backup server
imports VSS snapshots.
•
File system write processing is halted for a given length of time (within 10 seconds) during backup.
This processing is resumed after backup has been completed.
•
Note on integrity of the backup data for a file system when VSS is used:
When VSS is used to back up a file system, Application Agent obtains a snapshot without using
VSS Writer. Although this ensures the integrity of the file system, the integrity of the data for an
application that was operating during the backup cannot be ensured.
•
Set up the environment of Application Agent to use VSS. For details on environment settings required
to use VSS, see “
Specifying settings for using VSS
•
All the file systems subject to backup and restoration must be mounted in advance.
•
Do not use
LUN#0
as a secondary volume for the backup destination. If the
LUN#0
disk is used
as a secondary volume for the backup destination, other disks might not be recognized.
Application Agent system configurations
46