Differences Between CompacTape I, II, III

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sat Oct 23 11:17:12 1999

<> I also believe the DLT is helical scan versus CompacTape's linear scan
<> technology.

No they are all linear. Helical scan is used for some 8mm and most 4mm.
What seperates DLT (and the TK50/70 forrunners) is the tape is wider and
high bit packing.

<It's still linear. That's what the "L" in DLT stands for. For example
<ECMA Standard 286 defines DLT 6 as having 208 linear tracks.

Correct.

<This is alleged to allow for much better tape robustness, since it doesn't
<get beaten to death with every pass. This is why Seagate, HP, and IBM
<have joined forces to develop a new LTO (Linear Tape Open) standard:

Having used it and am using it for backup it's reputation for reliability
is real. It's the backup of choice for a lot of stuff.

Allison
Received on Sat Oct 23 1999 - 11:17:12 BST

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