D-Link DSN-4200 Hardware Reference Guide for DSN-4000 - Page 10

1.2 Features and Benefits High-performance, low-latency iSCSI storage system, with a highly integrated multifunction ASIC for fully featured, integrated storage virtualization Modular design with the ability to add hot-swappable DSN-4000 expansion arrays for up to 80 drives, with each drive having a maximum storage capacity of up to 2TB Easy setup and configuration - can be installed anywhere on a 1-Gigabit Ethernet network for improved access to critical information In-band or out-of-band management via direct connection or the Web Delivers Ethernet economics to storage for lower total cost of ownership and rapid deployment using known and trusted technologies Proven transport infrastructure for increased reliability, investment protection, and reduced training and administrative costs Scalability over long distances - ideal for remote data replication and disaster recovery High availability - redundant cooling fans and 2 redundant, hot-swappable, auto-sensing, load-sharing power supplies Intelligent battery pack ensures that a charged battery is on hand to preserve buffer cache contents if a power failure occurs. Contents are backed up for approximately 72 hours with the standard 2GB data cache (48 hours with the 4GB data cache option). 1.3 System Overview Figure 1-1 shows a typical DSN-4X00 storage system configuration in a Storage Area Network (SAN). The SAN shown is an Ethernet network used solely for exchanging data between the customer's host servers and the DSN-4000 series array. The Ethernet bandwidth used by the servers exchanging data with the storage system can be very high. Using a separate Ethernet to act as a SAN keeps that data from interfering with the customer's existing LAN and improves security. Figure 1-1. Example of a DSN-4000 Series Storage System Configuration 2 Chapter 1 Introduction