Array Controllers - Compaq N2400 - TaskSmart - 1 GB RAM Administration Manual

6-6 Compaq TaskSmart N2400 Administration Guide

Array Controllers

Inside the TaskSmart N2400 appliance, there are two separate RAID array
controllers. The Integrated Smart Array Controller protects the operating
system drives in the server, using RAID 1. The four-port Smart Array
Controller guards the data drives in the external enclosures, using RAID
5 (distributed data guarding) for fault-tolerant data protection. The Smart
Array Controller provides high performance RAID functionality for the data
drives. For a more thorough discussion of RAID levels and how they protect
your data, refer to Appendix B.
Key Features and Benefits of the Smart Array
Controller
Four channels—four external SCSI channels, each supporting up to
fourteen 36.4-GB disks.
128-MB error checking and correcting (ECC)—cache memory,
battery-backed and removable
Ultra3 SCSI—up to 160 MB per channel
New Performance Architecture—with 64-bit RISC processor engine
64-bit PCI design
Compaq Pre-Failure Warranty—support for hard drives (requires
Compaq Insight Manager)
Online management features—online capacity expansion, online
stripe size migration, online spare (global)