First Virtual Communications 3000 user manual Power Supplies, Scsi Connectors

Voyager 3000 User Guide

∙Comprehensive failure management including:

Automatic bad sector reassignment

Hot-swapping

Global and Local Spare drive operation

Background rebuilding

∙Works with any operating system without additional software drivers.

∙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

∙Up to 8 logical drives, each with independent RAID mode.

∙Up to 8 partitions per logical drive2.

∙Compatible and will automatically match any SCSI hard disks with SCSI-1, SCSI-2 or Fast SCSI specification.

∙Full SCSI-2 implementation including Tagged Command Queuing and Multi-Threaded I/O.

∙Uses 486 CPU with all executable firmware downloaded into high-speed DRAM.

∙Firmware resides in easy-to-update Flash Memory.

∙Up to 32 Mbytes of intelligent Read-Ahead/Write-Back cache.

∙Front panel LCD and push buttons for configuration and message display.

∙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.

Figure 1-8 PSU mounted in removable 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.

2A total maximum of eight logical drives are allowed e.g. 1 logical drive with eight partitions, 2 logical drives with 4 partitions each etc.

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