NEC ExpressA1160 - Manual (Page 30)

Network Components
1-8
Partition
A partition is a combination of one to four cells that runs a single instance of an
operating system or virtual machine monitor. The operating system can be Red Hat
Linux, SUSE Linux, or any supported Windows operating system. The virtual machine
monitor can be VMware ESX or Xen. You can purchase the operating system or virtual
machine monitor from NEC or supply it yourself.
A system comprises a minimum of one and a maximum of four partitions.
Service Processor
Each cell has an internal management board. For each partition, one of the partition’s
management boards serves as the Service Processor. (Other management boards in
the partition are called satellite management controllers.) A Service Processor manages
and maintains the partition, monitors the system for hardware problems, and allows you
to repartition the system.
The system’s management firmware resides on flash memory on the management
board and provides the Service Processor functionality. Using a Web browser, you
connect to the remote console interface to maintain, monitor, and repartition the system.
The management board also includes the BIOS and Console Manager firmware.
1.9. Network Components
Your network environment can include the following components.
Public LAN
The public LAN is the customer’s internal production network that connects the servers,
workstations, and so forth of an enterprise. It is sometimes referred to as the enterprise
LAN.
Windows Domain Controller
The domain controller typically acts as the Domain Name System (DNS), Windows
Internet Name Service (WINS), and Dynamic Host Configuration Protocol (DHCP)
server.
Note: DNS and WINS servers must be made secure in accordance with local security
policy guidelines. Microsoft recommends that production applications such as Server
Management software not be installed on domain controllers. For more information
about domain controllers, see the appropriate Microsoft documentation.