Dump partition with >=2GB RAM installed

[" >]

Anyone have any idea as to what happens with a FAT dump partition (max
size 2GB) when the physical RAM in the machine >=2GB?

TIA

Lewis

[" >]

Sorry to reply to my own post... Just in case anyone was wondering who I
was, I've tacked my signature onto my posts here. I can't believe how
Mozilla 1.6 munged my email address when I just entered some anti-spam
characters...!

--
Lewis
------------------------------------------------------------
Lewis G Rosenthal, CNA
Rosenthal & Rosenthal
Accountants / Network Consultants
New York / Northern Virginia www.2rosenthals.com
Team OS/2 / NetWare Users International www.novell.com
------------------------------------------------------------
This OS/2 system (Apollo) uptime is 0 days 08:41 hours and 23 seconds

[Scott G.]

On Tue, 02 Dec 2003 00:55:39 -0500, @(thenumeral)2rosenthals.com wrote:

>Anyone have any idea as to what happens with a FAT dump partition (max
>size 2GB) when the physical RAM in the machine >=2GB?

nothing happens, including no dump. ask me this question again in January
when I hope
I will have more time to go into this. In the meantime, use process dumps if
you have >2gb of RAM.

[" >]

Scott, you da man. :-) Thanks much.

--

Lewis
------------------------------------------------------------
Lewis G Rosenthal, CNA
Rosenthal & Rosenthal
Accountants / Network Consultants
New York / Northern Virginia www.2rosenthals.com
Team OS/2 / NetWare Users International www.novell.com
------------------------------------------------------------

This OS/2 system (Apollo) uptime is 0 days 00:42 hours and 06 seconds

[Lewis G Rosenthal]

It's January, my friend, and inquiring minds are curious... ;-) BTW,
Scott, hope the holiday was good, and Happy New Year.

On 12/02/2003 10:55 am, Scott G. thus wrote :

--

Lewis
------------------------------------------------------------
Lewis G Rosenthal, CNA
Rosenthal & Rosenthal
Accountants / Network Consultants
New York / Northern Virginia www.2rosenthals.com
Team OS/2 / NetWare Users International www.novell.com
------------------------------------------------------------

This OS/2 system (Apollo) uptime is 0 days 02:32 hours and 33 seconds

[Klaus Staedtler]

Lewis G Rosenthal wrote:
> It's January, my friend, and inquiring minds are curious... ;-) BTW,
> Scott, hope the holiday was good, and Happy New Year.
>

Take a look at testcase and discover dumpfs.ifs

Klaus Staedtler

[Scott G.]

OK, >2gb dumps. First of all, with exactly 2gb installed, you can probably
use the standard stuff, since
most systems take some memory off the top for shadowing. That said, I just
uploaded dumpfs.zip to testcase.

Summary:
- put udumpfs.* in \os2\dll, dumpfs.* in \os2\boot, and replace
\os2dump with \os2dump.hd
- Add IFS=DUMPFS.IFS to config.sys.
- Create a partition with LVM or whatever. LVM is such a terrible
utility that the best I can suggest is use
"create a partition that can be made bootable" and then delete it
from boot manager (if installed).
Make sure the partition is at least as large as your phyiscal RAM
size.
- Format x: /fs:dumpfs (x: is whatever)
- add TRAPDUMP=X:,R0 (or whatever) to point the dump at the right
drive.
That ought to do it. Note that I was too lazy to add EA support to the IFS,
so the workplace shell gets upset if you try to
look at the drive with a drives object. Use a command prompt or PMDF or
whatever to get to the dump.

This is beta (at best) software. I am almost certain that there is still a
problem with dumpfs trapping with
some configuration of partitions. I will listen to sensible and not too
time-consuming suggestions and will accept
bug reports (though I make no particular guarantee about response time).

-Scott

[Michal Necasek]

Scott G. wrote:

> This is beta (at best) software. I am almost certain that there is still a
> problem with dumpfs trapping with
> some configuration of partitions. I will listen to sensible and not too
> time-consuming suggestions and will accept
> bug reports (though I make no particular guarantee about response time).
>

This is probably a sensible but too time-consuming suggestion - have
you ever considered compressing the dump file? I suspect that in most
cases, the space savings would be tremendous - that was certainly my
experience with zipped up system dumps.

Michal

[Bob Plyler]

Not only that, but dumps to diskette are also compressed.
I've dumped a 256 meg machine to 15 diskettes.

Bob Plyler

[Scott G.]

> This is probably a sensible but too time-consuming suggestion - have
>you ever considered compressing the dump file?

I thought about it, but never really saw a huge need. It solves one problem
(using space on the
target system) but causes another (having to decompress the dump to look at
it). I suppose that the
latter problem is a moot point if I build the decompression into the IFS.
I'll certainly think about it.
-Scott

[Mike Luther]

Bob .. Maybe so but ..

Bob Plyler wrote:

>
> Not only that, but dumps to diskette are also compressed.
> I've dumped a 256 meg machine to 15 diskettes.
>
> Bob Plyler
>

The last 256 meg machine I got a floppy diskette dump on took, IIRC,
sixty-five (65) floppy diskettes. My key machine is 512MB here. I
have no room on it for an additional FAT 16 dump partition and ...
shudder .. only 128 freshly formatted floppy diskettes waiting. Where I
hope to heck they get to stay forever. .. ;)

--

--> Sleep well; OS2's still awake! ;)

Mike Luther

[Scott G.]

On Thu, 08 Jan 2004 16:00:14 +0000, Mike Luther wrote:

>...I have no room on it for an additional FAT 16 dump partition and ...

>shudder .. only 128 freshly formatted floppy diskettes waiting. Where I
>hope to heck they get to stay forever. .. ;)

Personally, I suggest that you not bother. There's a pretty high chance that,
after dumping to
all those floppies, one or more would be invalid, anyway.