[SunHELP] Changing hard drives SunOS 4.1.1 Sun4c

Sandwich Maker adh at an.bradford.ma.us
Mon Apr 15 08:05:12 CDT 2013

" 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

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