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AlphaServer DS20 Pedestal–Rackmount Windows NT
Alpha Servers 2.5
Step 5 External Storage
UltraSCSI Configuration Rules
UltraSCSI configurations require UltraSCSI components
(controllers, adapters, shelves, disks, and cables).
UltraSCSI adapters and RAID controllers support
UltraSCSI disks at UltraSCSI speeds in UltraSCSI Top
Gun Blue shelves (DS-BA356-xx).
Fast10 BA356-xx SCSI shelves can not be retrofitted.
Replace Fast10 SCSI shelf with DS-BA356-xx shelf
when adding an UltraSCSI disk and when connecting to
UltraSCSI adapter.
UltraSCSI and Fast10 drives can be mixed in DS-BA356
Top Gun Blue UltraSCSI shelf. UltraSCSI adapter
negotiates maximum transfer speed of drives.
UltraSCSI Connectors and Cables
KZPBA-CA PCI one port UltraSCSI Single-ended
adapter, 68HD connector, requires BN38C cables (2 to
20 m) to connect to UltraSCSI shelf.
KZPBA-CB PCI one port UltraSCSI Differential
adapter, 68HD connector, requires BN38C cables (2 to
25 m) to connect to UltraSCSI shelf or external RAID
array controller.
KZPAC-AA/CA/CB RAID controller, VHDCI
connector, require BN37A cables (.3 to 20 m) to connect
to UltraSCSI shelf.
KZPCM-DA PCI two port UltraSCSI Single-ended
adapter and 10/100M-bit Ethernet Combo adapter.
Internal 68-pin and 50-pin HD connectors and two
external 68-pin VHDCI connectors.
BN38C VHDCI to 68HD Cables KZPBA UltraSCSI adapter to UltraSCSI shelf
BN38C-xx
VHDCI male to 68HD male. xx=2, 3, 5, 10, and 20 meter lengths
BN37A VHDCI to VHDCI Cables KZPAC RAID controller and KZPCM UltraSCSI adapter to UltraSCSI shelf
BN37A-0C
0.3 m VHDCI male to VHDCI male
BN37A-0E
0.5 m VHDCI male to VHDCI male
BN37A-01
1.0 m VHDCI male to VHDCI male
BN37A-1E
1.5 m VHDCI male to VHDCI male
BN37A-02
2.0 m VHDCI male to VHDCI male
BN37A-2E
2.5 m VHDCI male to VHDCI male
BN37A-xx
3.0 m VHDCI male to VHDCI male. xx=3, 5, 10, 15, 20, and 25 meter lengths
UltraSCSI StorageWorks Pedestals and Shelves
UltraSCSI Top Gun Blue shelf provides support for UltraSCSI disk drives. Shelf is available in single-bus or split-bus
configurations. Shelf includes a personality module and a 180 W power supply.
UltraSCSI shelf supports:
Seven 3.5-inch hard disk drives, or
One 5.25-inch device and four 3.5-inch hard disk drives, or
Two 5.25-inch devices and one 3.5-inch hard disk drive.
Note: Installation of redundant power supply reduces number of 3.5” drive slots by one.
Pedestal Enclosure
DS-BA356-KF
UltraSCSI single-ended pedestal, single-bus personality module, 180 W power supply
DS-BA356-KG
UltraSCSI single-ended pedestal, split-bus personality module, 180 W power supply
DS-BA356-KH
UltraSCSI pedestal, differential personality module, 180 W power supply
DS-BA35X-HH
180 W power supply
Tabletop Tape Drives
DS-TLZ10-DB
1
12/24 GB 4 mm DAT narrow single-ended tabletop SCSI tape, includes 120 V North American
power cord, requires BN31W-xx SCSI cable
1. Requires dedicated KZPBA-CA UltraSCSI adapter, one BN21K-xx SCSI cable, and a country-specific power cord.