Administrator's Guide

2 Preparing to install the messaging system
Before you install the messaging system, plan how you will integrate the system into your network
and whether you will use Insight Remote Support (see “HP Insight Remote Support software” (page
60)).
Exchange Server 2010 network requirements
Exchange Server 2010 includes a high-availability feature called Database Availability Group
(DAG), which requires two networks:
• Client/MAPI network provides the following functions:
Server-to-server connectivity between the Client Access Servers (CAS), Hub Transport,
and Mailbox server roles
◦
◦ Server-to-server communication with domain controllers, global catalog servers, and name
services like DNS.
◦ Management of Exchange client traffic such as Outlook and Outlook Web App
◦ Exchange client access to mail on Client Access Servers.
◦ Replication, if the replication network is unavailable.
• Replication network provides the cluster heartbeat, Exchange Server 2010 log shipping, and
database seeding or reseeding when available.
IMPORTANT: The Replication and MAPI networks should be isolated from each other, preventing
Client/MAPI and Replication network traffic from being routed between networks.
E5000 EMU network connections
To facilitate manageability and diagnostic services on the messaging system, the server blades
require network connections to the EMU. The EMU provides connections to two management
processors:
• EMU processor
• iLO processor for each server blade
EMU iLO should be connected to the Client/Mapi network or to the dedicated management network
if used. Because many administrators use iLO remote management functions, including virtual
console, HP recommends that you configure the EMU so that administrators have remote network
access to the unit. The EMU and iLO management processors support DHCP and static network
addressing. To simplify initial setup, the processors are configured for static addressing as follows:
• EMU: 10.0.0.10
• Server 1 iLO: 10.0.0.11
• Server 2 iLO: 10.0.0.12
• Subnet: 255.255.255.0
Figure 3 (page 10) shows the network ports on the rear of the messaging system enclosure.
Exchange Server 2010 network requirements 9