RE: partitions
- From: "David Truong" <bnfiles@xxxxxxxxxxxxxxx>
- To: <jfw@xxxxxxxxxxxxx>
- Date: Wed, 25 May 2005 09:45:58 +1000
Hi,
Actually you can divide how much virtual memory to use by configuring =
your
virtual memory to be placed on multiple drives. In simple terms this =
means
that if you were going to configure windows to use 1.5 GB of disk space =
for
your virtual memory, you could divide this 1.5 GB over 2 or 3 drives if
desired. I personally believe that one should configure their virtual
memory to use one drive and that drive should be the fastest drive they =
have
available to them. That is why Windows by default puts your virtual =
memory
on your C: drive. It's commonly recognised that one would prefer to =
have
their operating system installed on the quickest drive at ones =
disposal.
Take a look at the below excerpt taken directly from the Windows XP =
help:
*** Start of excerpt
Managing computer memory
When your computer is running low on
RAM
and more is needed immediately, Windows uses hard drive space to =
simulate
system RAM. This is known as
virtual memory,
and is often called the
paging file.
This is similar to the UNIX swapfile. The default size of the virtual =
memory
pagefile (named pagefile.sys) created during installation is 1.5 times =
the
amount of RAM on your computer.
You can optimize virtual memory use by dividing the space between =
multiple
drives
and removing it from slower or heavily accessed drives. To best optimize
your virtual memory space, divide it among as many physical hard drives =
as
possible.
When selecting drives, keep the following guidelines in mind:
List of 3 items
=95=A0Try to avoid having a pagefile on the same drive as the system =
files.
=95=A0Avoid putting a pagefile on a fault-tolerant drive, such as a
mirrored volume
or a
RAID-5 volume.
Pagefiles don't need fault-tolerance, and some fault-tolerant systems =
suffer
from slow data writes because they write data to multiple locations.
=95=A0Don't place multiple pagefiles on different
partitions
on the same physical disk drive.
list end
You can choose to optimize your computer's memory usage. If you use your
computer primarily as a workstation, rather than as a server, you can =
have
more
memory devoted to your programs. Your programs will work faster and your
system cache size will be the default size that came with Windows XP. =
You
can
also specify to set aside more computer memory for a larger system =
cache, If
your computer is used primarily as a server, or if you use programs that
require
a larger cache.
*** End of excirpt
David Truong
E-mail and MS messenger: davidtruong@xxxxxxxxxxxxxxx
Skype: blindboxer1967
Home Page: http://members.optusnet.com.au/davidtruong/
-----Original Message-----
From: jfw-bounce@xxxxxxxxxxxxx [mailto:jfw-bounce@xxxxxxxxxxxxx] On =
Behalf
Of Sean McMahon
Sent: Thursday, May 19, 2005 3:02 AM
To: jfw@xxxxxxxxxxxxx
Subject: Re: partitions
By default you have virtual memory on drive c because that's the default =
on
windows. You can change where that memory is. I don't know what the =
rules
are
on creating partitions for virtual memory once your system has been
partitioned
and is in use, but I don't see why you couldn't move the virtual memory =
over
to
one of your other drives if you desire and then specify a size. It =
makes
sense
to me that if you move virtual memory do another partition or drive, =
you'd
want
to specify the max size which will ensure both that you have enough swap =
and
that this amount available is fixed. You can also specify the size of
virtual
memory and leave it on it's current drive. We're talking about things =
that
get
cleaned out once processes have stopped. I don't see how playing around
with it
can hurt. I'd try leaving virtual memory on drive c for now and =
specifying
its
size as twice the amount of ram you have. The way you have the current
setup, I
personally wouldn't put swap with my data or backup drive.
----- Original Message -----=20
From: "Keith Gillard" <kgillard@xxxxxxx>
To: <jfw@xxxxxxxxxxxxx>
Sent: Tuesday, May 17, 2005 6:42 PM
Subject: Re: partitions
Hi Sean, I am a bit confused. Are you saying that you can assign a
partition solely for virtual memory?
I HAVE MY DRIVE partitioned as follows:
Local disk C, 40 gig
All system & program files
Local disk F, 200 gig
all data
backup G, 10 gig
image
What should I consider doing different that would make jfw perform =
better?
Always looking for an edge...Keith
----- Original Message -----=20
From: "Sean McMahon" <smcmahon@xxxxxxxx>
To: <jfw@xxxxxxxxxxxxx>
Sent: Tuesday, May 17, 2005 5:07 PM
Subject: Re: partitions
> Under help menu, read about diskpart. This will split your computer =
into
> several partitions provided you've space to do so.For multi-user =
systems,
> splitting into partitions allows something to be stopped before =
gobbling
> up the
> whole space. If you have a system with more than one harddrive, this =
is
> the
> best kind of partitioning scheme to have, though one disk will allow =
you
> to do
> such a thing. How to partition depends on personal choice, obviously =
you
> don't
> want to make a frequently used partition which frequently grows to =
small.
> A
> common partition setup has one for windows and jaws, one for windows
> software
> you feel is less stable or which you can quickly wipeout and replace =
if
> necessary, and one partition for swap or virtual memory. Virtual =
memory
> is
> space on a harddrive that operating systems use to move things along =
when
> the
> ram is all used.In this 3 partition setup, your windows and jaws =
partition
> might
> include everything under the windows directory, your user profiles and
> specific
> settings under the documentsand settings folder, your jaws folders =
under
> c:\jaws
> or the freedomscientific directory under program =
files\freedomscientific.
> Your
> virtual memory partition might be equal to the amount of ram or double =
the
> ram
> of your computer, I don't know what MS recommends for swap space.
> Everything
> else can go into a third partition. You can have as many or few as =
you
> like.
> I'd look on the MS website to see what all the confusing terms in the
> diskpart
> help mean because they aren't explained there.
> hth
> ----- Original Message -----=20
> From: "Vy Pham" <thaovyngu@xxxxxxxxxxx>
> To: <jfw@xxxxxxxxxxxxx>
> Sent: Tuesday, May 17, 2005 2:01 PM
> Subject: partitions
>
>
> Hi,
> What kind of software can I use to divide my computer into different
> partitions
> that is also accessible with JAWS? I also wonder, is it a good idea =
for
> me to split my computer up like that? What are the advantages and the
> disadvantages of doing that? Can anyone tell me, please?
> Vy
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