Veritas FlashSnap Point-In-Time Copy Solutions 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

Checkpoints or a snapshot copy than by full restoration from tape or other
backup media.
Point-in-time copy scenarios
Point-in-time copies of volumes allow you to capture an image of a database or
file system at a selected instant for use in applications such as backups, decision
support, reporting, and development testing.
Point-in-time copy solutions may additionally be configured to use off-host
processing to remove much of the performance overhead on a production system.
The following chapters describe how you can use FlashSnap to implement regular
online backup of database and cluster file system volumes, to set up a replica of
a production database for decision support:
■ About online database backup
■ About off-host cluster file system backup
■ About decision support
The following types of point-in-time copy solution are considered in this document:
■ Primary host solutions where the copy is processed on the same system as the
active data.
See “Implementing point-in time copy solutions on a primary host” on page 17.
■ Off-host solutions where the copy is processed on a different system from the
active data. If implemented correctly, such solutions have almost no impact
on the performance of the primary production system.
See “Implementing off-host point-in-time copy solutions” on page 19.
■ Using Storage Checkpoints to quickly roll back a database instance to an earlier
point in time.
See “About database recovery” on page 79.
Veritas software used in point-in-time copy scenarios
This guide provides a number of example scenarios that illustrate how to
implement point-in-time copy solutions.
Table 1-1 shows the Veritas products that may be used with a Veritas FlashSnap
license to provide the required functionality in different environments.
11Point-in-time copy solutions
Veritas software used in point-in-time copy scenarios