Configuring System Backups; Backing Up The Fusion Manager Configuration; Using Ndmp Backup Applications - HP StoreAll 8800 Administrator's Manual

6 Configuring system backups

Backing up the Fusion Manager configuration

The Fusion Manager configuration is automatically backed up whenever the cluster configuration
changes. The backup occurs on the node hosting the active Fusion Manager. The backup file is
stored at <ibrixhome>/tmp/fmbackup.zip on that node.
The active Fusion Manager notifies the passive Fusion Manager when a new backup file is available.
The passive Fusion Manager then copies the file to <ibrixhome>/tmp/fmbackup.zip on the
node on which it is hosted. If a Fusion Manager is in maintenance mode, it will also be notified
when a new backup file is created, and will retrieve it from the active Fusion Manager.
You can create an additional copy of the backup file at any time. Run the following command,
which creates a fmbackup.zip file in the $IBRIXHOME/log directory:
$IBRIXHOME/bin/db_backup.sh
Once each day, a cron job rotates the $IBRIXHOME/log directory into the $IBRIXHOME/log/
daily subdirectory. The cron job also creates a new backup of the Fusion Manager configuration
in both $IBRIXHOME/tmp and $IBRIXHOME/log.
To force a backup, use the following command:
ibrix_fm -B
IMPORTANT:
configuration changes. Whenever the cluster configuration changes, be sure to save a copy of
fmbackup.zip in a safe, remote location such as a node on another cluster.

Using NDMP backup applications

The NDMP backup feature can be used to back up and recover entire StoreAll software file systems
or portions of a file system. You can use any supported NDMP backup application to perform the
backup and recovery operations. (In NDMP terminology, the backup application is referred to as
a Data Management Application, or DMA.) The DMA is run on a management station separate
from the cluster and communicates with the cluster's file serving nodes over a configurable socket
port.
The NDMP backup feature supports the following:
NDMP protocol versions 3 and 4
Two-way NDMP operations
Three-way NDMP operations between two network storage systems
Each file serving node functions as an NDMP Server and runs the NDMP Server daemon (ndmpd)
process. When you start a backup or restore operation on the DMA, you can specify the node
and tape device to be used for the operation.
Following are considerations for configuring and using the NDMP feature:
When configuring your system for NDMP operations, attach your tape devices to a SAN and
then verify that the file serving nodes to be used for backup/restore operations can see the
appropriate devices.
When performing backup operations, take snapshots of your file systems and then back up
the snapshots.
When directory tree quotas are enabled, an NDMP restore to the original location fails if the
hard quota limit is exceeded. The NDMP restore operation first creates a temporary file and
then restores a file to the temporary file. After this succeeds, the restore operation overwrites
the existing file (if it present in same destination directory) with the temporary file. When the
64 Configuring system backups
You will need the backup file to recover from server failures or to undo unwanted