Chapter 3 Operating the Cartridge Tape Drive

Table 3–1 States Indicated by LEDs

Drive State

Top LED (errors)

Middle LED (SCSI)*

Bottom LED (motion)

POST (1st part)

On

On green

On

POST (to completion)

On

Flash irregular**

Off***

Failed POST

Flash fast

Flash irregular

Off

Ready (no tape loaded)

Off

Flash irregular

Off

Ready (tape loaded)

Off

Flash irregular

On

Normal tape motion

Off

Flash irregular

Flash slow

High-speed tape motion

Off

Flash irregular

Flash fast

SCSI bus reset

On

Flash irregular

On

Error

Flash slow

Flash irregular

Off

Time to clean

Flash fast

Flash irregular

Flash fast

 

 

 

 

Cleaning tape loaded

Off

Flash irregular

Flash slow

*Green indicates EXB-8500 or EXB-8200 uncompressed format. Amber indicates EXB-8500c or EXB-8200c compressed format.

**The LED flash rates are defined as follows: flash slow = 1 flash/second

flash fast = 4 flashes/second

irregular = Rate of flash varies depending on SCSI bus activity. If the 8mm tape drive is not connected to the SCSI bus, the LED will be off.

***If a tape is loaded, the bottom LED will flash slow and then fast during the second part of the power-on self-test (POST)

NOTE

You may occasionally observe LED combinations and sequences not described in Table 3–1. These other combinations represent special or unusual conditions that are beyond the scope of this table.

3.2Recommended Data Cartridge

The 8mm cartridge tape drive uses 8mm data cartridges, Digital part number TKZ8x. This data cartridge provides approximately 10 GBytes of EXB-8500c formatted data capacity, assuming an average compression ratio of 2:1.

Additional data cartridges can be ordered. For details, see page viii in the "About This Guide" section of this document.

3.3Setting the Write-Protect Switch

The tape drive uses 8mm data cartridges, part number TKZ8X. These data cartridges are equipped with a write-protectswitch to prevent the tape from being unintentionally written to.

Order Number: EK–STWCT–UG. E01

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