ACRONIS RECOVERY - FOR MICROSOFT EXCHANGE Guía de instalación descargar pdf (Pagina 26)

backups to the next location, the backup will be copied there without delay. Only its deletion from

the current location is postponed.

Replication

[Optional] Specify whether to copy backups to another location. For more information about backup

replication, see the "Setting up replication of backups" of the product help system or guides for

Acronis Backup & Recovery 11.5.

When to validate

[Optional] Define when and how often to perform validation and whether to validate the entire

archive or the latest backup in the archive.

5.4 Backup modes

5.4.1 Express full backup method

This feature is used only in advanced editions of Acronis Backup & Recovery 11.5 (p. 6).

Use of the express full backup method requires the "Express backup and deduplication" add-on and

the storage node to be installed. The "Express backup and deduplication" add-on is purchased

separately. However, you do not need to purchase and install this add-on if Agent for Windows and

its deduplication add-on are already installed on your Exchange server.

The express full backup method allows creating full backups of Exchange information stores, storage

groups, or databases in deduplicating vaults. With this method, Acronis Backup & Recovery 11.5

backs up only the changes that have occurred since the previous full backup. The data that has not

changed is replaced with links to it in a newly created backup.

As compared to regular full database backups:

 The express full backups are created much faster and occupy less space.

 The number of I/O requests to the production server is significantly reduced.

5.4.1.1 How the express full backup method works

The express full backup method is based on monitoring Exchange database files performed by

Acronis Express Backup Driver.

Beginning from the first regular full backup, the driver monitors all modifications performed on the

database file. The driver determines the offsets and regions of the database file which have been

modified by Exchange and stores information about these modifications in the list of changed file

regions.

At the next backup, the driver provides the list to the agent and the agent starts to back up only the

data corresponding to this list. The agent transfers only the changes and the data that cannot be

deduplicated (transaction log files and database page headers). Since the unchanged data is already

stored in the deduplicating vault, the agent only adds links to this data. After that, deduplication at

target is performed in the same way as for disk-level and file-level backups.

To learn more about how deduplication works, see the "How deduplication works" section of the

product help system, or guides for Acronis Backup & Recovery 11.5 Advanced Editions.

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