hard disks for 3b1

andrew.d.hay mvadh at cbnews.ATT.COM
Wed Nov 22 23:20:10 AEST 1989


In article <1145 at becker.UUCP> bdb at becker.UUCP (Bruce Becker) writes:
[]
"					       You
"	can't reference more than 1024 tracks without
"	the P5.1 upgrade, and you can't reference
"	more than 8 heads without the WD2010.

this is backwards; it's the 2010 that gives you access to more tracks,
and the P5.1 logic that adds access to more cylinders.

"					      The
"	chip doesn't require the upgrade, & the upgrade
"	doesn't require the chip.

true.

"				  It is possible to use
"	RLL drives but you will only get 2/3 of the
"	rated capacity, since the tracks will be
"	formatted with only 17 512-byte sectors.

also true.  the unix-pc only supports MFM...

-- 
Andrew Hay		+------------------------------------------------------+
42 Authority		|	  Zaphod Beeblebrox is now appearing in	       |
AT&T-BL Ward Hill MA	|    "No S*x Please, We're Amoeboid Cingatularians"    |
a.d.hay at att.com		+------------------------------------------------------+



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