Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 14)

Planning a Deployment
Feature Pack Deployment Guide 14
Notice
It is not recommended to store Exchange databases and transaction logs on the
same disk drive on the Windows Storage Server computer. This configuration
degrades disk performance and leaves the server vulnerable to data loss in the event
of physical disk corruption. Because corruption of the disk damages both the
Exchange databases and the transaction logs, a recovery operation can restore only
data from the last successful backup. All data stored after the last backup is lost.
Low-Capacity Network Configuration
As shown in Figure 1.1, a crossover cable connects the Windows Storage Server computer and
the Exchange server across a dedicated network in the low-capacity scenario.
Medium-Capacity Scenario
The medium-capacity scenario supports up to 750 mailboxes on one Exchange 2003 server.
Table 1.2 Medium-Capacity Scenario for Exchange 2003
Configuration
Component
Specifications
Capacity One Exchange 2003 server and one Dell PowerVault NAS Storage Server 2003
system, supporting a total of 750 mailboxes
Windows Storage
Server computer One Dell PowerVault NAS Storage Server 2003 system with an optional PowerVault
220S / 221S External Storage Array
1 GB of RAM
Four disk drives for storing Exchange databases
Two disk drives for storing Exchange transaction logs (if available)
One Gigabit Ethernet adapter and one 10/100 or greater Ethernet adapter
Exchange server One Gigabit Ethernet adapter and one 10/100 or greater Ethernet adapter
Disk drive
configuration The Exchange databases are stored on a RAID-5 volume that spans four disk drives on
the Windows Storage Server computer. The Exchange transaction logs are stored on
the direct attached storage (DAS) drive on the Exchange server.
-Or-
Exchange databases and transaction logs stored on separate RAID volumes that span
separate disk arrays (if available) on the Windows Storage Server computer
Network A dedicated Gigabit network between the Exchange server and the Windows Storage
Server computer
A 10/100 Ethernet hub connects the Exchange server, the Windows Storage Server
computer, the domain controller, and client computers