Specifications; Table 1-6 Controller Shelf Technical Specifications - Compaq StorageWorks RAID Array 3000 Controller Shelf User Manual

Specifications

Model
Controller shelf description
Disk controller shelf
Controller model
Dual active controllers
Controller cache
Backup for cache
Controller operation
(with 2 controllers)
Controller failover
Mirrored write-back cache
Write through cache
Command Queuing
Write gathering
Host channels
Drive channels
Maximum transfer rate
RAID 5 sustained transfer rate
Maximum I/O per second
Controller Shelf Technical Specifications
Feature
RA3000 rack mount controller shelf (DS-SWXRA-GH, -GK)
RA3000 rack mount disk shelf (DS-SWXRA-GN)
BA356 style shelf with one HSZ22 controller, two 180 watt
power supplies, two host I/O modules, one-dual channel
Wide-Ultra, single-ended personality module, blue
BA356 disk SBB shelf with two 180 watt power supplies, one
single channel Wide-Ultra, single ended personality module,
blue
One HSZ22 standard
With DS-HSZ22 second controller upgrade
16 MB standard
64 MB standard with two controllers
1000 VA UPS, standard with controller shelf
Active-Active (recommended)
Active-Passive (spare)
Yes, automatic
Yes
Yes
Yes, 64 commands
Yes
Two Wide-Ultra SCSI differential
Two Wide-Ultra SCSI single ended
44.7 MB per second per controller pair
Read – 32.6 MB per second per controller pair
Write – 30.6 MB per second per controller pair
4,400 I/O per second
Table 1-6
Description
Product Overview 1-21
continued