12 Jul
2004
12 Jul
'04
3:22 p.m.
On Mon, Jul 12, 2004 at 08:09:43PM -0400, Jerome H. Fine wrote:
I guess there is more to an LLF (Low Level Format)
than
I realized. I had thought that a completely blank RK05 media
was able to be FORMATed via an RK05 drive.
It can.
Your answer
seems to STRONGLY suggest that the media must first be
SECTORed correctly.
It's not the media, per se... it's the hub that's clamped to
the platter itself...
RK05 media are hard-sectored. There are slits cut in a part of the
hub that serve the same purpose as holes punched in the media of
hard-sectored floppies... they delineate the start of each of the
sectors, in the case of the RK05, either 12 sectors or 16 sectors,
depending on the word-size of the controller, 16-bits or 12-bits.
Note that the bit density is identical - what changes is how the bits
are aggregated into sectors (12 sectors of (N) 16-bit words or
16 sectors of (N) 12-bit words).
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 13-Jul-2004 00:10 Z
South Pole Station
PSC 468 Box 400 Temp -96.7 F (-71.5 C) Windchill -138.1 F (-94.5 C)
APO AP 96598 Wind 9.80 kts Grid 080 Barometer 670.8 mb (10973. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html