User`s guide

1
Introducing the StorageWorks RAID
Array 3000 Storage Subsystem
This technical update to the TruCluster Software Products Hardware
Configuration manual provides important information about support for
the StorageWorks RAID Array 3000 (RA3000) with the TruCluster
Production Server Software and TruCluster Available Server Software
Version 1.5 products.
1.1 StorageWorks RAID Array 3000 General Overview
The StorageWorks RAID Array 3000 (RA3000) is a low-end, standalone
UltraSCSI RAID subsystem that incorporates the latest in RAID
technology. It supports RAID levels 0, 1, 0+1, 4, 5, and JBOD disks.
The RA3000 storage subsystem has fully redundant components to
eliminate single points of failure. It comes with a standard uninterruptible
power supply (UPS) for cache data protection during power outages.
The RA3000 uses the dual-ported HSZ22 controller. Optional dual
redundant controllers with mirrored write-back cache provide maximum
data integrity.
The StorageWorks Command Console (SWCC) V2.0 (or higher) client
graphical user interface (GUI) runs on a Microsoft
®
Windows
®
95 or
Windows NT
®
PC connected directly to the RA3000 by a serial line.
After the first virtual disk has been created, you can also communicate with
your RAID Array 3000 over a TCP/IP network provided the V2.0 (or higher)
SWCC Agent has been installed on the Digital UNIX member system.
The RA3000 is available as:
• DS-SWXRA-GH—A rackmount subsystem (standard RETMA or metric
cabinet) containing a controller shelf with one HSZ22 controller, an
uninterruptible power supply (UPS), two host I/O modules, a device I/O
module, and one 6-slot device expansion shelf. Up to three additional
expansion shelves (DS-SWXRA-GN) may be added to provide a
maximum of 24 storage devices.
• DS-SWXRA-GA—A deskside pedestal subsystem that includes one
HSZ22 controller. The base pedestal accommodates up to seven storage
Introducing the StorageWorks RAID Array 3000 Storage Subsystem 1–1