hello, on my ultra10 with NetBSD disks looks like this:

8 partitions:
#        size    offset     fstype  [fsize bsize cpg/sgs]
 a:   1049328         0     4.2BSD   1024  8192    86   # (Cyl.    0 -
1040)
 b:   2097648   1049328       swap                      # (Cyl. 1041 -
3121)
 c:  78165360         0     unused      0     0         # (Cyl.    0 -
77544)
 d:  16778160  45090864     4.2BSD   1024  8192    86   # (Cyl. 44733 -
61377)
 e:  16296336  61869024     4.2BSD   1024  8192    86   # (Cyl. 61378 -
77544)
 g:  41943888   3146976     4.2BSD   1024  8192    86   # (Cyl. 3122 -
44732)

disk is a western digital 40GB

what eactly means cpg (cylinders per group?)
I noticed this number is 16 on my DEC3000 runining NetBSD and is 16 on my
Digital Personal Workstation running FreeBSD.
does this number has any real importance or can I modify it from 86 to 16?
Will it have inpact on performance?
should I leave it 86 or change it ??
Actually I can't figure out while it was set to 86...

thanks

Rick