Tandberg Data Streamer SLR140 XE Kit External Grey 6722 7152 00 사용자 설명서

SLR140 Features

D:\SLR140 Features for Reliability and
Performance.doc

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Printed: 30.03.04

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5. Tandberg SLR140

The Tandberg SLR 140 launched in October 2003 is the newest tape drive product in the SLR series.
The capacity is 70 GB native, and 140 GB assuming 2:1 compression whilst the transfer rate is 6 MBs
in native mode and 12 MBs with 2:1 compression.  With 3:1 compression, the capacity is 210 GB, and
transfer rate is 18 MBs.

To accommodate the requirement for trouble.-free backup and high performance, SLR140 has several
advanced technical features ensuring "trouble free backup", highest possible transfer rate and capacity.
The most important technical advancements are detailed below.

All SLR7, SLR60, SLR75 and SLR100 also have these features. SLR7 uses a two channel read/write
head while SLR60, SLR75, SLR100 and SLR140 uses a four channel read/write head.

For every block of data, six bytes of CRC (Cyclic Redundancy Check) data is calculated and written
just after the data bytes.  During the read-while-write operation, the CRC data is again calculated and
checked with the written CRC.  If any error is detected, the data is re-written to a different track.  A
block can be rewritten on a different track to end of tape before the tape drive reports a hard write error.
In theory all data can be written on four, three, two or on one single track if the media or the other
tracks are not functioning.

Average = 3.14

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