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Date:	Mon, 25 Oct 1999 17:39:07 PDT
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-general@scoug.com
To:	scoug-general@scoug.com
Subject:	SCOUG-General: More Q's on tuning OS/2 for legacy DOS

Content Type: text/plain

Hi, :)

In the legacy DOS system that I'm moving to an OS/2 box, the DOS
CONFIG.SYS file contains two statements that I'm not sure what to do
with:

SHELL = C:\COMMAND.COM C:\ /E:600 /P

and

DEVICE=C:\DOS\RAMDRIVE.SYS 2000 256 200 /E

What do I do to set up these two CONFIG.SYS statements?

- In the DOS Window properties for Session there is a DOS_SHELL
setting. Is this what I use to increase the environment size?

- How do I create the DOS RAMDRIVE?

I've put some reference info below in case somebody wants to see it. :)

Thanks.

- Peter Skye

_____

The SHELL command is simply to increase the environment space to 600
bytes (the default size is 256 bytes). The /P parameter just makes the
change permanent by disabling EXIT for this instance of COMMAND.COM.

_____

The RAMDRIVE.SYS is a driver for a memory-resident "disk drive". The
actual line loads the driver code high, and for reference it is:

DEVICE=C:\QEMM\LOADHI.SYS /GS:QEMMLDHI /R:1 C:\DOS\M\RAMDRIVE.SYS 2000
256 200 /E

LOADHI.SYS is the driver that loads the code high, and it doesn't stay
resident. /GS: is a parameter I use for a log file. /R:1 is simply the
upper memory region where the RAMDRIVE is to be loaded.

The RAMDRIVE.SYS parameters are 2000 for a 2,000 KB (2 MB) drive size,
256 for sector size (a smaller sector size wastes less space), 200 for
the size of the name table in the root directory (i.e. maximum 200 files
and directory names in the root directory), and /E to put the RAMDRIVE
in extended XMS (not expanded EMS) memory.

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