Subject: Re: [netatalk-admins] Large Volume Support? again
From: Donald Lee (donlee_nat@mailhost.icompute.com)
Date: Tue Feb 03 1998 - 10:27:15 EST
At 2:16 AM 2/3/98, Walt Bigelow wrote:
>Andrew McNabb wrote:
>>
>> On Sun, 18 Jan 1998, Tracy Peek wrote:
>>
>> > Hello Everyone On This List ...
>> >
>> > I have a problem I hope that can be solved ... I have installed a 9 gig
>> > drive in my
>> > server and have made two partitions of just of 4.0 gigs a piece. One for
>> > appleshare
>> > (netatalk) and one fro Samba (PC Support). If though a "df" shows only 21
>> > percent
>> > used on the netatalk volume .. the mac client finder shows only 200 megs
>> > available.
>>
>> MacOS has some problems with large volumes. However, the problem depends
>> on the model of the computer. Certain types of Macs running 7.5.2 or
>> later will support any size of a hard drive (up to several terabytes).
>> However, anything else has an upper limit that is more restrictive: 4GB.
>> Any MacOS system before 7.5 can only support 2GB.
>>
>> Apple has several documents relating to this in the TIL:
>Sorry to bring this up yet again, but I have 2 PPC's one a 9500 and one
>a 7100, both running MacOs 8 (and after reading the apple support pages,
>aparently the machines can support up to 4TB.) I wound up with a
>problem in limits of drive size when I mount the netatalk server (Linux
>slackware 96/netatalk 1.4b2 with the mac os 8 fix). It reports 2gig
>where I actually have a 32GB raid array available on the file server. I
>have looked through the dist for a compile time option, but have found
>none. What is the trick to make it repor the ACTUAL size?
>
>Thanks again,
>Walt
I believe that this is a problem not with the software, but with
the AFS protocol. As I recall, there are some limitations in the protocol
that limit the reported size of disks to mod(realsize,2gig), so if your
disk is 3 gig it reports 1 gig, etc.
In the latest clients (shipped with MacOS8) I think it figures out on the
client side that the size is over 2G and simply reports its max, but
I don't know. This has been a point of discussion on some Apple
server mail lists, and they;re working on it.
This does not affect how big volumes can get and doesn't pose a problem
in accessing the whole 32Gb, just in the reported free space/size.
-dgl-
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