Chapter 1. Introducing the CHALLENGE Vault Rack and SCSIBox 2

This guide provides information to operate the CHALLENGE™ Vault rack (Model No. CMN A012B) and the front-loading SCSIBox 2 (Model No. CMN AS02). These devices provide additional disk storage for the Onyx™ and CHALLENGE deskside and rackmount systems.


The CHALLENGE Vault, or Vault (see Figure 1-1), can house up to 12 SCSIBox 2s (7 in the front of the chassis and 5 in the rear of the chassis). The Vault can also house up to 96 half-height drives or 48 full-height drives.

Figure 1-1. Vault Peripherals Rack


The SCSIBox 2 shown Figure 1-2, houses SCSI (small computer system interface) drives and installs into the Vault rack. Each SCSIBox 2 holds up to eight half-height drives or four full-height drives.

The SCSIBox 2 is an enhancement over previous Silicon Graphics® SCSI boxes and features improved EMI (electro-magnetic interference) shielding and front-loading drives that make it easier to remove and replace drives.

Figure 1-2. CHALLENGE Vault SCSIBox 2


The CHALLENGE Vault SCSIBox 2 is available in two configurations:

  • single-ended (marketing code P-S-SBX2-XSE)

  • differential (marketing code P-S-SBX2-X)

The single-ended drive box supports only single-ended hard disk drives, and the differential drive box supports only differential hard drives. The single-ended drives are normally 8-bit, 50-pin hard disk drives; the differential drives are normally 16-bit, 68-pin hard drives.

Caution: If you do not know the type of disks you have, do not attempt to install the disks into the SCSIBox 2 drive box.

Note: The SCSIBox 2 does not currently support 16-bit, single-ended drives.

Warning: Do not attempt to install the SCSIBox 2 into the Vault. Installation should be performed only by Silicon Graphics-certified personnel.

Installation of these upgrades requires specific training and technical knowledge. This equipment utilizes electrical power internally that is hazardous if the equipment is improperly disassembled.

This equipment is also extremely sensitive and is susceptible to damage caused by electrostatic discharge (ESD). ESD is an electrical discharge (spark) caused by the buildup of electrostatic potential on clothing and other materials.

Comparing SCSIBox 2s

The SCSI drive box in your Onyx or CHALLENGE rackmount system is also called a SCSIBox 2 (marketing code P-S-SBX2-M); however, the Vault SCSIBox 2 and the drive box in your system are two different boxes. You cannot install a Vault SCSIBox 2 into an Onyx or CHALLENGE rackmount system, or install an Onyx or CHALLENGE SCSIBox 2 into a Vault chassis.

The differences between these two drive boxes are: (see also Figure 1-3):

  • The Vault SCSIBox 2 is a slighter longer box.

  • The two SCSIBox 2s have different power sources. The Vault SCSIBox 2 has a self-contained power supply. The Onyx/CHALLENGE rackmount SCSIBox 2 is powered through the Onyx/CHALLENGE rackmount system.

  • The Vault SCSIBox 2 has two internal fans; the Onyx/CHALLENGE rackmount SCSIBox 2 is cooled by two large central fans external to the SCSI box.

    Figure 1-3. Comparing the Two SCSIBox 2s

Compliance Information


This equipment has been tested and found compliant with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

This product requires the use of external shielded cables in order to maintain compliance with Part 15 of the FCC rules.

International Special Committee on Radio Interference (CISPR)

This equipment has been tested to and is in compliance with the Class A limits per CISPR publication 22, Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment; and Japan's VCCI Class 1 limits.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.


Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de Classe A prescrites dans le Reglement sur le Brouillage Radioelectrique etabli par le Ministere des Communications du Canada.

Figure 1-4. VCCI Information

Figure 1-5. CE insignia

Manufacturer's Regulatory Declarations

This workstation conforms to several national and international specifications and European directives as listed on the “Manufacturer's Declaration of Conformity,” which is included with each computer system and peripheral. The CE insignia displayed on each device is an indication of conformity to the European requirements.

Caution: Your workstation has several governmental and third-party approvals, licenses, and permits. Do not modify this product in any way that is not expressly approved by Silicon Graphics, Inc. If you do, you may lose these approvals and your governmental agency authority to operate this device.

Silicon Graphics is a registered trademark and CHALLENGE, Onyx, and IRIX are trademarks of Silicon Graphics, Inc.