Ultra Start 450 SERIES Instruction Manual Page 121

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Chapter 5 Parts Installation and Repair 101
How to Install the 8-Bay Storage
Expansion Option
Caution If you are installing this part as an option, you must ensure that it does
not make your configuration exceed the system power budget; see “How to
Determine System Power Requirements” on page 82 for more information.
Caution This procedure must be performed by a qualified service-trained
maintenance provider. Persons who remove any of the outer panels to access this
equipment must observe all safety precautions and comply with skill level
requirements, certification, and all applicable local and national laws.
Caution UItraSCSI data cables are fragile and should be handled with care.
The 8-bay storage expansion option kit contains the following parts:
Dual-channel single-ended UltraSCSI controller PCI card
8-slot UltraSCSI backplane
I
2
C cable
8-slot UltraSCSI power cable
8-slot UltraSCSI data cable
The dual-channel UltraSCSI controller card may be installed in any available PCI
slot. For maximum performance, the system should be configured, if possible, with
no more than one dual-channel UltraSCSI host adapter on each PCI bus. For
additional information on PCI buses and cards, see “About Peripheral Component
Interconnect (PCI) Buses” on page 58.
The dual-channel UltraSCSI PCI host adapter card supplied with the 8-bay storage
expansion option has two internal SCSI connectors and two external SCSI
connectors. When installed as part of the 8-bay storage expansion option, only the
internal connectors are used. Do not connect external SCSI devices to a SCSI channel
that is used to support internal disk drives. Additional single-ended and differential
UltraSCSI host adapters are available for controlling external SCSI storage devices.
If you are installing two 8-bay storage expansion option kits, install the controller
card for the upper 8-slot backplane in a PCI slot located above the controller card
used for the lower 8-slot backplane.
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