Compaq EK-SMCPO-UG. C01 manual Controller Specifications

2-6RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide

Table 2-1

Controller Specifications continued

Item Specifications

Disk warm spare (not spinning)

Redundant power supplies

Redundant controllers

Controller failover

Controller hot spare

Controller hot plug

Cluster support

Maximum number of units presented to host

Maximum host port transfer speed

Command queuing

Heterogeneous multi-host support

Mixed drive types

Configurable reconstruct time

Stripe size (chunk size)

Write through cache

Write back cache

Write on top

Write gathering

Battery backup for cache

Boot capability

Number of controllers /system

Cache support

FCC rating

Yes, global warm spare

Yes

Yes

Yes, automatic

Yes (Active/Passive mode)

Yes

Yes, single (SCSI) bus cluster

64

20 MHz

Yes, 64 commands (host and disk SCSI channels)

Yes

Yes

Yes

Variable

Yes, user selectable (optional)

Yes, user selectable (default)

Yes

Yes

Yes, Pedestal Uninterruptable Power Supply (UPS)

Bootable from RAID set (system-dependent)

Two

Up to 64 MB (using two 32 MB industry standard, 72-pin, 36-bit, 60 ns SIMMS)

Class B

continued