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 58)). See the HP E5000 Messaging System for Microsoft Exchange Installation Checklist for
general planning information:
http://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?
docId=emr_na-c03168643
Exchange Server 2010 network requirements
Exchange Server 2010 includes a high-availability feature called DAG, which requires two networks:
• Client/MAPI network provides the following functions:
Server-to-server connectivity between the 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 Access
◦ Exchange client access to mail on CASs.
◦ 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.
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 types of management
processors:
• EMU processor
• iLO processor for each server blade
The EMU and iLO NIC port should be connected to the Client/MAPI network or to the dedicated
management network if used. For additional information, see Figure 4 (page 12) and Figure 5
(page 13) and “Configure the EMU and iLO management processors” (page 17). 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
NOTE: The EMU must share a LAN with the server blades.
Figure 3 (page 11) shows the network ports on the rear of the messaging system.
10 Preparing to install the messaging system