greg@gagme.chi.il.us (Gregory Gulik) (03/26/91)
I just got this hard drive that I would like to use on my
3B2/300.
It's a full height hard drive that has labels from
both CDC and AT&T on it. There is a stamp that says
67 Meg on the top. What are the parameters that I need
to give to idtools to format it???
Is this the infamous drive that is often found in 3B1's???
Please reply by E-mail.
Thanks.
-greg
--
Gregory A. Gulik Call Gagme, a public
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|| gulik@depaul.edu (312) 714-8568
woods@eci386.uucp (Greg A. Woods) (03/29/91)
In article <1283@gagme.chi.il.us> greg@gagme.chi.il.us (Gregory Gulik) writes: > It's a full height hard drive that has labels from > both CDC and AT&T on it. There is a stamp that says > 67 Meg on the top. What are the parameters that I need > to give to idtools to format it??? Uh, it would help if you told us what *all* the labels said in detail. I would guess that it is actually a CDC Wren II 72 Mb drive with 9 heads, and 905 cylinders -- but check the idtools manual. The 3b1 manual notes a Miniscribe "67 Mb" drive with 8 heads and 1024 cylinders which you could also use. If you've been reading in comp.sys.3b1 lately, then you will have seen all the various discussions about why AT&T label the 3b1 drive as 67 Mb (w.r.t. the 3b1) while CDC call it a 72 Mb drive. The maximum usable bytes with ST-506/MFM format would be: CDC: 9 * 905 * 18 * 512 = 75,064,320 bytes Miniscribe: 8 * 1024 * 18 * 512 = 75,497,472 bytes > Is this the infamous drive that is often found in 3B1's??? Or it's the standard 3b2 drive (72 Mb) -- they are almost identical. Note that the 3b1 only "uses" 16 (512 byte) sectors per track while the 3b2 is quite happy to use the maximum of 18. > Please reply by E-mail. Oops! :-) (I'll forward it too) -- Greg A. Woods woods@{eci386,gate,robohack,ontmoh,tmsoft}.UUCP ECI and UniForum Canada +1-416-443-1734 [h] +1-416-595-5425 [w] VE3TCP Toronto, Ontario CANADA Political speech and writing are largely the defense of the indefensible-ORWELL
hpn@area88.uucp (Huy Nguyen) (03/30/91)
In article <1991Mar28.172224.17991@eci386.uucp> woods@eci386.UUCP (Greg A. Woods) writes: > >I would guess that it is actually a CDC Wren II 72 Mb drive with 9 >heads, and 905 cylinders -- but check the idtools manual. The 3b1 >manual notes a Miniscribe "67 Mb" drive with 8 heads and 1024 >cylinders which you could also use. > > Greg A. Woods >woods@{eci386,gate,robohack,ontmoh,tmsoft}.UUCP ECI and UniForum Canada >+1-416-443-1734 [h] +1-416-595-5425 [w] VE3TCP Toronto, Ontario CANADA >Political speech and writing are largely the defense of the indefensible-ORWELL idtools? I've seen other references to idtools, but what is it? And is it for 3b2s? (And, where can one get it?) -- ------------------------------------------------------------------------------- Huy Nguyen | AT&T Explorer Scouts Post 71 hpn@occrsh.att.com || attcc!area88!hpn@mwood.att.com -------------------------------------------------------------------------------
woods@eci386.uucp (Greg A. Woods) (04/03/91)
In article <1991Mar30.040106.613@area88.uucp> hpn@area88.uucp (Huy Nguyen) writes: > idtools? I've seen other references to idtools, but what is it? And is it > for 3b2s? (And, where can one get it?) > -- > Huy Nguyen | AT&T Explorer Scouts Post 71 > hpn@occrsh.att.com || attcc!area88!hpn@mwood.att.com From AT&T! It comes with the 3b2 service manual. -- Greg A. Woods woods@{eci386,gate,robohack,ontmoh,tmsoft}.UUCP ECI and UniForum Canada +1-416-443-1734 [h] +1-416-595-5425 [w] VE3TCP Toronto, Ontario CANADA Political speech and writing are largely the defense of the indefensible-ORWELL