Specifications

Data Backup Options
Chapter 6 Data Protection 95
• Snapshot rollback —
If you need to restore a file system to a previous state, you
can do so without resorting to tape. The rollback feature allows you to use any
Snapshot to restore an entire volume to a previous state, including ACL and
quota information.
• Backup optimization —
When you back up a live volume directly, there is a
chance that the internal consistency of the file system may be compromised; that
is, files that reference other files in the system may become asynchronous. The
more data you have to back up, the more time is required for the backup
operation, and the more likely these events are to occur. By backing up the
Snapshot rather than the volume itself, you greatly reduce the risk of archiving
inconsistent data.
Backup Express for GuardianOS
Backup Express for GuardianOS is a comprehensive backup solution from Syncsort
Inc. The master server component of the Backup Express software is preinstalled on
your server to support backup and restore operations to a local tape drive. The
default installation supports the following features:
• Local Backup —
The default configuration supports local backup operation
where data is streamed from the Snap Server directly to a locally attached tape
device. In multi-server installations, data from up to four additional source Snap
Servers can be streamed over the IP network to a tape device connected to a
destination Snap Server.
• Tape Drive Support and Management —
Backup Express for GuardianOS is
compatible with all tape formats including DLT, LTO, and AIT. A single central
database (known as the catalog) tracks all files and the tapes on which they
reside. Backup Express offers advanced scheduling capabilities that enable you to
run backups without any administrator intervention.
• Disaster Recovery Support —
Complete backup and restore of all extended
Extended POSIX ACLs of the Snap Server is supported.
• Upgrading to Jukebox Support —
Robotic tape library support enables
unattended, lights-out backup operations (upgrade required, see “Upgrading
Backup Express for Jukebox Support” on page 163 for more information).
The Snap Server ships with the Backup Express for GuardianOS CDs. These CDs
contain client applications (GUI) as well as a Getting Started Guide that walks you
through the initial configuration tasks and introduces you to the Backup Express
GUI. Use the installation CDs to install the Backup Express GUI software on a
Windows or UNIX workstation.