Quantum SDLT 320 Betriebsanweisung PDF herunterladen (Seite 28)

CHAPTER 2: General Drive Specifications SDLT 220 and SDLT 320 Design & Integration Guide

2-10 March 2004 81-81148-01

2.5.3 Cartridge Life Expectancy

Table 2-3 shows the number of load and unload cycles you can expect before the

tape cartridges need to be replaced.

2.5.4 Data Integrity

SDLT data transfer errors are extremely rare; data integrity for the overall tape

system is shown in Table 2-4.

Table 2-3. Loading and Unloading the Media Cartridge (Maximum)

DLT IV

Tape Cartridge

SDLT I

Tape Cartridge

Cartridge load/unload cycles† 10,000 100,000

Tape insertions

‡ 5,000 5,000

† Load and unload cycles are rated at 5,000 for the cartridge itself.

‡ An insertion is when a tape is inserted into the receiver, loaded to BOT,

calibrated, and then unloaded.

Table 2-4. Data Transfer Error Rates

Error Type Frequency

Detected, Recoverable (ECC) READ

<1 error in 10

bytes read

Detected, Unrecoverable READ

<1 error in 10

bits read

Undetected READ

<1 error in 10

bits read

Rewrite of Data

<5 per 10

bytes written

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Quantum SDLT 320 Betriebsanweisung Seite 28