Working with an HSR Volume

HeadStart Restore (HSR) creates a standby volume for later restoration in the event of a failure. You can create the HSR volume then apply incremental updates to it to keep it current. Typically, HSR is used for large volumes as the HSR process greatly shortens the time needed to do a full restore. This also shortens the time needed to bring a failed server back online.

Note: ImageManager also includes an HSR feature. There are significant differences between the two however. HSR in ImageManager:

• Runs as an automated process to update HSR volumes
• Works only with virtual volumes

HSR in the Recovery Environment

• Requires manual updates to the HSR volume.
• Requires downing the system and booting into Recovery Environment for each update.
• Works only with physical volumes.

You can use the HSR feature of Recovery Environment to: