From: "Ben Smith \(QM Systems\)" <[EMAIL PROTECTED]>
> I searched the archives and found only the warnings that the ATA
> drives in the 1400 and others don't support SCSI disk mode for
> drives over 4GB. As it turns out, it doesn't support a 2GB either.
> The question is: has anybody discovered a fix for this?
In what way will it not support 2Gb drives??
In SCSI disk mode. The disk mounts and you may read from it but any
attempt to write to it produces an error to the effect that the disk
is damaged and you should check your latest files. In fact, as I
recall, the error just keeps popping up without trying even to write.
Norton says the disk is fine and it works without flaw with the 1400
unSCSIed. I tried it on another computer - no difference. I checked
the both desktop computers (7500/G3 & 610/60LC040) with a 540c and
SCSI disk mode works fine. I reformatted to HFS-no difference. I
tried systems 7.5.5, 8.1, 8.6, 9.1 - no difference. I was beginning
to think it had something to do with the fact that the 1400's HD
isn't SCSI but then neither was the 750MB! I DL'd specs for both
drives and left off where I wondered if the default jumper settings
for that "Slave/Master/Cable-determines-state" thing were different.
Searching PB archives I found comments that only drives <4Gb (some
said <3Gb... and I'm having trouble with a 2Gb HD) would support SCSI
disk mode which led to my inquiry about a fix.
Nb you 'can' use 4Gb+ drives, you just risk data corruption.
Interesting use of the word 'just.' What is a hard drive's purpose if
not to retain data without corruption? "You can use that bridge, you
just risk falling to your death." ;-)
From: Malcolm Cornelius <[EMAIL PROTECTED]>
I thought the issue was it wouldn't see a partition bigger than 4GB, if you
had several smaller partitions it would be ok.
I'm 90% certain I've used a 2GB HD in SCSI disc mode on a 1400, I'll check
my notes.
Here are culls from the list on this subject which my research has turned up:
Date: Sun, 10 Jun 2001 18:48:01 -0400
Subject: Re: PB5300: Max. hard drive capacity?
From: Matt Halter <[EMAIL PROTECTED]>
There is a problem with large capacity ATA hard drives and SCSI disk mode on
PowerBook models prior to the PowerBook G3 (introduced in November of 1997.)
The affected machines include the PowerBook Duo 2300c, the PowerBook 5300
family, the PowerBook 190 family, the PowerBook 1400 family, the PowerBook
3400 family, and the PowerBook 2400 family. The problem only affects such
machines because they have ATA hard drives. PowerBooks with SCSI hard drives
are not affected by this problem.
This problem only occurs in the following situation:
1. You upgrade the hard disk which shipped with the PowerBook to a higher
capacity ATA hard drive.
2. The new ATA drive is greater than 4 gigabytes in capacity.
3. You use the PowerBook in SCSI disk mode.
Hope this helps.
matt
------------------------------
Subject: Re: PB5300: Max. hard drive capacity?
Date: Mon, 11 Jun 2001 23:50:59 +1000
From: Remy Davison <[EMAIL PROTECTED]>
>What is the maximum hard drive size for a Powerbook 5300(c,cs,ce)?
under Os 7.5.x?...Under Os 8.(1-6)?
I am wanting to upgrade from the 750 in my PB.
Under 7.5.2-7.5.3, 4GB.
Under 7.5.5 or later, 2 terabytes.
Caveats: The IDE drive controller on the 5300 notionally supports drives
of only 8.2GB or smaller. Some owners report success with larger HDDs
which have been partitioned into sub-8.2GB volumes.
Other caveats include the fact that certain applications will not
recognise more than 2GB volume sizes. The original Apple File Sharing
protocol only recognises 2.0GB as well.
SCSI Disk Mode may be affected; ensure you use Apple's Drive Setup. Some
owners report losing SDM functionality with drives larger than 4GB.
Partitioning, even with Apple's DS (oddly enough) can also mean SDM stops
working.
Remy Davison
----------------------------
Subject: Re: Hard drive upgrade for 1400
Date: Sun, 4 Nov 2001 16:17:54 +1000
From: Remy Davison <[EMAIL PROTECTED]>
I have found an IBM Travelstar 12 gig drive for a good price and
wonder if it can be used in my PB? I have the 1400 take apart manual
in pdf format and have reviewed the procedures for hard drive
replacement and feel OK about it.
I have a feeling that SCSI Disk Mode will be a thing of the past
with a drive this big. Will partitioning fool SDM into working?. I do
use this method occasionally to copy large quantities of data when
ethernet is too slow.
Should work, although may require 4 + 8 GB partitions using Drive Setup.
Notionally, the IDE controller on the 190/5300/1400 was the older spec
which recognised only up to 8.2GB. However, people have successfully
by-passed this limitation via partitioning.
I find ethernet is not much slower than SCSI on the 1400, primarily
because the 1400/5300/190 SCSI runs the old SCSI chip which is limited to
3MB/ps throughput. In practice, this works out as 500-600K/ps. It can
reach maybe 900-1MB when doing copy-to-copy with Disk Copy images (which
are cached in RAM), but that's not the usual situation. Even my old
Quadra 700 manages around 1.7MB p/s as it has the SCSI Manager 4.3
compliant SCSI controller (5-10MB/ps).
I'm not sure whether partitioning will kill SDM. On the 3400 with drives
over 3GB, attempting to use SDM can WIPE ALL DATA from the drive. With
the 5300, partitioning can eliminate SDM functionality, but otherwise
cause no harm. I've never had occasion to partition a 1400 with a really
big drive, but since the SDM capability is in ROM and the 5300/1400
aren't architecturally a great deal different, I'd suspect it simply
wouldn't work.
Let us know the results of your 12GB transplant though.
Remy Davison
------------------------------
Date: Sat, 03 Nov 2001 21:44:21 -0800
From: Clark Martin <[EMAIL PROTECTED]>
Subject: Re: Hard drive upgrade for 1400
At 4:17 PM +1000 11/4/01, Remy Davison wrote:
> I have found an IBM Travelstar 12 gig drive for a good price and
wonder if it can be used in my PB? I have the 1400 take apart manual
in pdf format and have reviewed the procedures for hard drive
replacement and feel OK about it.
>> I have a feeling that SCSI Disk Mode will be a thing of the past
with a drive this big. Will partitioning fool SDM into working?. I do
use this method occasionally to copy large quantities of data when
>>ethernet is too slow.
>Should work, although may require 4 + 8 GB partitions using Drive Setup.
Notionally, the IDE controller on the 190/5300/1400 was the older spec
which recognised only up to 8.2GB. However, people have successfully
>by-passed this limitation via partitioning.
I'm running a first partition of 18Gb and a second one of 2Gb on my
5300. I haven't tried SCSI Disk Mode though.
--
Clark Martin
------------------------------
Subject: Re: Hard drives in 5300
Date: Sun, 20 Jan 2002 00:26:36 +1100
From: Remy Davison <[EMAIL PROTECTED]>
...Has anyone any advice on what size and make I could fit safely
into a 5300? I
>have 1GB at the moment - I'd be happy if I could just double that, let alone
>get up to anything substantial.
4GB is fine if you want to use SCSI Disk Mode. If you don't, the sky's
(virtually) the limit, depending on OS. If you're using 8.1 or later, you
won't have any trouble with the 8.2GB logical limit, notionally imposed
by the IDE controller.
It's probably not worth over-capitalising the 5300, but 3.2GB and 4.0-odd
GB pulls from original iBooks and Lombards/Wallstreets are cheap enough.
Remy Davison
------------------------------
...I can see where making another partition of any size would
reduce the size of the to less than 4GB and then you'd be fine.
----------From: Joseph C. Sis, JR.Reply
Monday, April 1, 2002 1:06 PM
�if you create a hidden 16mb volume at the END of the 4Gig disk it
resolves this problem.
joseph
------------------------------
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