1-7

Introduction

SCSI RAID Controller Features Summary

The SCSI RAID controller features are described in the table below.

Note: For more on SCSI, see AppendixF, About SCSI.

Adaptec 2020ZCR
Adaptec 2120S Adaptec 2200S
Form factor Low-profile Low-profile Low-profile
PCI compatibility PCI/PCI-X PCI only PCI only
PCI bus width (max) 64-bit 64-bit 64-bit
PCI bus speed (max) 133 MHz 66MHz 66MHz
Cache, standard 64 MB 64 MB 64 MB
Channels None 1 2
Devices per channel1
1. Includes Ultra320 through Ultra2 hard drives and ot her devices, including CD and
tape drives.
15 15 15
Total dev ice s 30 15 30
Connectors, internal2
2. High density
None 1 2
Connectors, external3
3. Very High Density Connector Interface (VHDCI)
None 1 2
Cables supplied None 1 internal 1 internal
RAID levels 0, 1, 5, 10, 50 0, 1, 5, 10, 50 0, 1, 5, 10, 50
Simple volume Yes Yes Yes
Span ned vo lum e Yes Yes Ye s
Hotspares Yes Yes Yes
Automatic failover Yes Yes Yes
Audible alarm Yes Yes Yes
Battery module option
4
4. Battery sold separately.
Not available ABM-300 ABM-300