First Virtual Communications Voyager 3000 - Manual (Page 18)

Voyager 3000 User Guide
1-8
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Comprehensive failure management including:
Automatic bad sector reassignment
Hot-swapping
Global and Local Spare drive operation
Background rebuilding
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Works with any operating system without additional software drivers.
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Four types of daughter board:
--ELRC-9021WS: Wide, single-ended, 1 SCSI channel
--ELRC-9021WD: Wide, differential, 1 SCSI channel
--ELRC-9051UW: Ultra wide single-ended, 1 SCSI channel
--ELRC-9051UD: Ultra wide differential, 1 SCSI channel
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Up to 8 logical drives, each with independent RAID mode.
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Up to 8 partitions per logical drive
2
.
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Compatible and will automatically match any SCSI hard disks with SCSI-1, SCSI-2 or
Fast SCSI specification.
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Full SCSI-2 implementation including Tagged Command Queuing and Multi-Threaded
I/O.
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Uses 486 CPU with all executable firmware downloaded into high-speed DRAM.
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Firmware resides in easy-to-update Flash Memory.
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Up to 32 Mbytes of intelligent Read-Ahead/Write-Back cache.
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Front panel LCD and push buttons for configuration and message display.
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RS-232 interface for monitoring and configuration via a terminal.
Power Supplies
The VOYAGER 3000 uses two high performance power supply units per backplane. A single
power supply is rated at 180 Watts. Each power supply is rated at greater than 500,000 hours
MTBF with a second power supply providing full redundancy capabilities. The Power supply
units are housed in bays 8 through 9 within the cabinet and are mounted in removable shuttles
for ease of maintenance. Figure 1-8 shows a Power Supply Unit housed in the canister.
SCSI Connectors
SCSI connectors are of two types -
1. 68 Way MicroD High Density connectors for connection to external hosts.
2. SCA2 for internal peripheral connections.
2
A total maximum of eight logical drives are allowed e.g. 1 logical drive with eight partitions, 2 logical drives
with 4 partitions each etc.
Figure 1-8 PSU mounted in removable canister