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Overview 1-3
Table 1-1 AlphaServer DS20L Product Features (continued)
Feature Description
Disk controller
Embedded Ultra3SCSI controller for internal SCSI disk
drive.
Storage
Two storage bays – one 3.5” x 1” hard drive bay, one CD-
ROM drive bay.
Optional CD-ROM
18.2-GB, 36.4-GB, and 72.8-GB UltraSCSI disk drives
that can connect to the embedded SCSI disk controller.
Expansion Ports Parallel – One bidirectional enhanced port.
Serial – Two full-duplex asynchronous ports (COM1,
COM2)
Firmware SROM, Alpha Diagnostics, and SRM.
Operating System
Support
Minimum OS support: Tru64 UNIX V5.1A, New
Hardware Delivery-4 (NHD-4) for Tru64 UNIX Version
5.1A, and the most recent Tru64 UNIX V5.1A Patch Kit
Tru64 UNIX: Pre-installed software (V5.1A + NHD4), 2-
user base license
Linux-ready systems: Red Hat 7.1 or SuSe 7.1 may be
purchased separately from a Linux distributor.
System Management
(via PCI Bridge I
2
C
Controller or System
Management
Expansion Connector
J40)
Monitoring of processor and motherboard voltages and
system thermal state.
Detection of processor and motherboard presence,
versions, and asset record.
Detection of system and power-supply status and power-
supply inhibiting.
Indication of system error for both hardware- and
software-detected problems.
Monitoring of system fan speeds.