Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 51)

Applications and Exchange Tools
Feature Pack Deployment Guide 51
Figure 4.2 Configuration 2: Backup/Restore on a Windows Storage Server Computer
Configuration 3, shown in Figure 4.3, has the following components:
An Exchange server
A Windows Storage Server computer hosting the Exchange databases and transaction logs
A stand-alone backup server
Figure 4.3 Configuration 3: Stand-alone Backup Server
Table 4.1 compares the number of network data transfers that are required for backup and restore operations
under each of the three configurations.
Table 4.1 Comparison of Network Data Transfers for Backup and Restore Operations
Configuration Network Data Transfers for Backup Network Data Transfers for Restore
Configuration 1
Backup/Restore on
Exchange Server
One data transfer:
One data transfer from the Exchange
database on the Windows Storage
Server computer to the backup device on
the Exchange server.
One data transfer:
One data transfer from the backup
device on the Exchange server to the
Exchange database on the Windows
Storage Server computer.
Configuration 2
Backup/Restore on
Windows Storage Server
Computer
Two data transfers:
One data transfer from the Exchange
database on the Windows Storage
Server computer to the Exchange server.
One data transfer from the Exchange
server to the backup device on the
Windows Storage Server computer.
No data transfers over the network.
Data is restored from the backup device
on the Windows Storage Server
computer to the Exchange database on
the same server.
Configuration 3
Stand-alone Backup
Server
Two data transfers:
One data transfer from the Exchange
database on the Windows Storage
Server computer to the Exchange server.
One data transfer from the Exchange
server to the separate backup server.
One data transfer:
One data transfer from the separate
backup server to the Exchange database
on the Windows Storage Server
computer.