RK07 diskheads

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Thu Jun 3 13:44:26 2004

On Jun 3, 9:08, Jason McBrien wrote:
> Our resident DEC expert says they are, but he can't remember for
sure. (He
> used to fix them)
>
>
> >From: Ed <edward_at_groenenberg.net>
> >
> >Just a quick question, are the heads in an RK07 the same as in an
RL02?
> >They awfully look the same, so I was just wondering.....

That seems unlikely to me, because both RL02 and RK07 are 14" platters,
but the RL02 has 512 cylinders and the RK07 has 815. That means the
cylinders are closer together on the RK07 (385 tpi instead of 250 tpi,
in fact), which implies they are also narrower.

The RL02 has embedded (sectored) servo information on every track, the
RK07 uses the fourth surface for the servo information.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York
Received on Thu Jun 03 2004 - 13:44:26 BST

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