Computer Associates BABNWUP900NE6 Clients Agents Guide - Page 15

Snapshot and Direct I/O Features for Solaris and HP-UX Systems, Agent Features

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Agent Features Snapshot and Direct I/O Features for Solaris and HP-UX Systems You can enhance the performance of certain UNIX file systems (UFS) and Veritas file system (VxFS) volumes by using the Snapshot and Direct I/O (Direct Input/Output) features. Note: These features are available at the disk volume level only, and only for Solaris and HP-UX systems. With the Snapshot feature, the client agent allows you to back up your data faster and more efficiently. The BrightStor ARCserve Backup client agent takes a snapshot of a UNIX volume, mounts the snapshot to a temporary directory created in the root volume, and then generates the backup. After the snapshot backup has completed, the file system agent dismounts from the temporary directory and deletes the snapshot. Some network machines can create and mount a snapshot of their backup data to an alternate mount point. Backup applications can then access and back up the data using the alternate mount point. With the Direct I/O feature, the UNIX client agent remounts the volume using the Direct I/O Mount option. This feature may improve performance during file input/output (I/O) operations and can eliminate double buffering requirements. Introducing the Client Agents 15

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Agent Features
Snapshot and Direct I/O Features for Solaris and HP-UX Systems
You can enhance the performance of certain UNIX file systems (UFS) and
Veritas file system (VxFS) volumes by using the Snapshot and Direct I/O
(Direct Input/Output) features.
Note:
These features are available at the disk volume level only, and only for
Solaris and HP-UX systems.
With the Snapshot feature, the client agent allows you to back up your data
faster and more efficiently. The BrightStor ARCserve Backup client agent takes
a snapshot of a UNIX volume, mounts the snapshot to a temporary directory
created in the root volume, and then generates the backup. After the snapshot
backup has completed, the file system agent dismounts from the temporary
directory and deletes the snapshot. Some network machines can create and
mount a snapshot of their backup data to an alternate mount point. Backup
applications can then access and back up the data using the alternate mount
point.
With the Direct I/O feature, the UNIX client agent remounts the volume using
the Direct I/O Mount option. This feature may improve performance during file
input/output (I/O) operations and can eliminate double buffering
requirements.
Introducing the Client Agents
15