[SunHELP] Changing hard drives SunOS 4.1.1 Sun4c

[Sandwich Maker]

" From: Peter Stokes <peter at ashlyn.co.uk>
" 
" Hi Fredric
" 
" Just to confirm previous poster, 2Gb filesystems is your max (this is all from
" memory, so feel free to correct me). 8 slices per disk, so max usable is 16Gb
" per disk. I never used disksuite on this O/S so not sure if that would extend
" (version of Veritas?).

disksuite 1 patched the kernel to allow larger slices, but still only
8 of them.  i remember it was released for 4.1.3 and the install
script had to be patched to install on 4.1.4.  disksuite 2 and up were
for solaris 2.

there was a version of veritas, but that was another product.

but this is tangential to fred's issue, i think.  he probably
doesn't need a 'large' [in sunos4 terms] disk.  it is getting harder
to find drives that aren't 'large', though.

" From: Brad Walker <bwalker at musings.com>
" 
" 
" On Sun, Apr 14, 2013 at 7:45 PM, Sandwich Maker <adh at an.bradford.ma.us>wrote:
" 
" > " From: Brad Walker <bwalker at musings.com>
" > "
" > " SunOS 4.1.1 only support 32 bit filesystems. Therefore your partition
" > sizes
" > " can't exceed 4GB in size.
" >
" > 2G, in sunos4.  i suspect signed arithmetic.
" 
" It's been a really long time since I worked on the kernel for SunOS. I
" stand corrected. I could have sworn it was unsigned values. Anyways..

it should've been, but when they wrote the code they probably never
imagined the code would live long enough to make a difference, or they
cleverly used negative values to indicate error conditions.

i don't actually know if the cause is signed arith, only that the
limit is 2G.
________________________________________________________________________
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