I thought I remembered something interesting about 6th Edition RK05
handlers, and went back to check RK(IV) in the manual. There it is,
Raid 0.
"Drive numbers (minor devices) of eight and larger are treated
specially. Drive 8+x is the x+1 way interleaving of devices rk0 to
rkx. Thus blocks on rk10 are distributed alternately among rk0, rk1,
and rk2." Goes on to enumerate precautions, like don't use the same
physical drive for both normal and interleaved operation.
I myself never tried this, because I didn't have enough confidence in
the error-free operation of a single RK05 drive, let alone two or
more. Note that this feature disappeared by the time of 7th Edition
RK(4).
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenstein(a)ucsd.edu
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There's what looks to be a detailed timeline of UNIX history here:
http://www.levenez.com/unix/
Regards,
Lyle
--
Lyle Bickley
Bickley Consulting West Inc.
http://bickleywest.com
"Black holes are where God is dividing by zero"
Can anybody explain why the 2BSDs that were distributed with kernel source
code are numbered 2.8BSD upwards. Why start numbering at 8?
P.S Actually I have a 2.79BSD in the archive which came out in 1979 just
before 2.8BSD, so could it be that the '2.79' means 1979, and numbering
followed incrementally after that?
Cheers,
Warren
Well, the matter is simple: I'm trying to install 2.11 BSD in one PDP-11/23
PLUS with 4MB of ram, and the 'restor' and 'icheck' utilities don't load in
he PDP, returning this message:
"Can't load split I&D files"
I tried with the diverse distributions of Vtserver and diverse versions of
'restor'. In the case of the 2.9BSD this don't happen but the utility can't
understand what is the 'vt' device.
Someone has encountered and solved this problem ?
Regards
Sergio
On Fri, Jun 19, 2009 at 04:34:22PM -1000, Tim Newsham wrote:
> I just got to watch the video (slow download) and it looks
> like the talk went very well! What was the BOF like? Did
> you get a chance to demo the system and have people poke at it?
Yes, the BOF went well, about 30 people from various vintages, a few young
Linux-types, but also old farts like Norman Wilson, Andrew Hume and Bill
Cheswick. I showed them V1 in action, but not ed as my ed skills are not
flash. Also showed V5, V7, but didn't get nsys working. Still, showed them
the nsys code. Lots of stories & anecdotes. It went for 2 hours or so,
with a few stragglers left chatting after that for another 1/2 hour. Overall
a good response.
Cheers,
Warren
Hi,
Anyone any info on PDU (Portable Distributed Unix) A one-time
competitor to RFS (the one-time competitor to NFS). I have read
that PDU is releated to the Newcastle connection, but how did it
differ?
Also, is there any relationship between either PDU or RFS and the
Eightth or Nineth edition network file systems (NETA and NETB)?
-Steve
