User`s guide

Chapter 1. Overview of RAID and RAID Array 200 Subsystems
EK–SWRA2–IG. C01 1–11
1.3.2 An Array of Disks in a Storage Enclosure
StorageWorks RAID Array 200 Subsystems support the use of between 1 and 21
disk drives: (See Release Notes for a list of supported disk drives with part
numbers.)
You can install these drives in a StorageWorks storage pedestal; or your system's
internal storage enclosure.
1.3.3 A Specialized Array Controller for Implementing a RAID Set
StorageWorks RAID Array 200 Subsystems use a controller that combines the
functionality of a RAID controller and a host adapter into a single, low-cost
module that you install directly into your system. The StorageWorks RAID
Array 200 RAID controllers come in the following configurations for computers
with an EISA, or PCI bus:
EISA-bus
• SWXCR-EA 1-channel unit, supporting up to 7 disk drives
• SWXCR-EB 3-channel unit, supporting up to 21 disk drives
PCI-bus
• SWXCR-PA 1-channel unit, supporting up to 7 disk drives
• SWXCR-PB 3-channel unit, supporting up to 21 disk drives