[rescue] 3B2 / SysVr3 disks on Sun ?

Sandwich Maker adh at an.bradford.ma.us
Wed Dec 8 16:07:13 CST 2010

" From: gsm at mendelson.com
" Sysv r3 had a 1024 cylinder limit. On IDE drives it was just over 500 megabytes.
" On SCSI drives it was 1g with 512 byte blocks. In order to get over 1g, you
" had to format the disks with larger blocks, so the number of cylinders did
" not go over 1024. 

i'm pretty sure this limitation was in the att format itself, not the
disk drivers.  i recall reading that the mfm 3b2s couldn't format the
maxtor 1190 et al to full 1224-cyl capacity but had no trouble using
them preformatted.
shocked to see i'm named in the friedl 3b2 faq!  that must date from 2
decades ago when i was a 3b2 admin at bell labs, which launched my
sysadm career.  takes me back...
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought

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