Subject: Re: Increasing maximum partition to 16
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
List: tech-kern
Date: 12/28/2000 12:49:41
In message <200012282034.PAA07140@Twig.Rodents.Montreal.QC.CA>der Mouse writes

>What I mostly want to say is, there's a quick-fix kludge possible right
>now.  Take a big partition and turn it into a one-element ccd, and
>(sub)partition that.

Doesn't scale very well. If you've already used ccd to glue four 80gig
disks (or 5, with raidframe) into a 320-gig volume, how many vnds-inside-
vnds do you need to get back to reasonable cpg and block/fragment size?

What does that do to your disk throughput?


>In principle I can't see any reason this wouldn't work recursively,
>though I've had the occasional bad experience trying to layer things
>like vnd and ccd more than one layer deep.

(wince, thinking of  Mach  copy chains....)