[THIN] Re: The Truth about Windows 4GB Memory Limit
- From: "Brian Madden" <brian@xxxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 20 Feb 2004 10:04:44 -0500
Ahh.. Good point.
More than 4GB of memory in a single server is fine for "regular" servers.
Things like SQL and Exchange and other regular apps work fine and make use
of the added memory. In these cases, the fact that they each require 4x PTEs
in the kernel doesn't matter since you're not near the limit.
Also, VMware is a good point too. The each virtual machine uses that hosts
application memory, not kernel memory. Therefore, you won't run into any
issues because the host is not in danger of running out of kernel memory
(since it's only running a few apps). Of course each VM is fine too, because
they each have their own kernel space within their memory pool.
I guess I'm interested whether anyone out there is running a full blown
application Terminal Server with more than 4GB of memory.
Brian
Brian Madden
brian@xxxxxxxxxxxxxxx
+1.202.302.3657
Visit www.brianmadden.com for in-depth Citrix, Terminal Server, and
server-based computing news and analysis, white papers, downloadable videos,
and product reviews.
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Braebaum, Neil
Sent: Friday, February 20, 2004 9:52 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: The Truth about Windows 4GB Memory Limit
Brian
I have machines with more than 4GB of memory in, but none directly run
TS - some do / did run TS in some VMware shells - but for varying
reasons, I don't have the need any more.
Neil
> -----Original Message-----
> From: Brian Madden [mailto:brian@xxxxxxxxxxxxxxx]
> Sent: 20 February 2004 14:25
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] The Truth about Windows 4GB Memory Limit
>
> Hi Everyone,
>
> Just FYI, I threw together a quick article about my findings
> regarding the 4GB memory limit in Windows.
>
> The down and dirty is:
>
> (1) Do NOT under any circumstances use the /3GB or /4GT
> boot.ini switches on a Terminal Server
>
> (2) Using the /PAE boot.ini switch will severely LIMIT your
> number of PTEs (which are really needed in TS environments).
> Since PAE is required when more than 4GB of memory is
> installed, I would recommend that Terminal Servers do NOT
> have more than 4GB of memory.
>
> (3) The "64-bit" memory addressing model that's used when PAE
> is enabled does NOT remove the 2GB kernel memory limit.
>
> A question: Does anyone run Terminal Servers with more than
> 4GB of RAM? If so, I'd like to talk to you off list. I have a
> few questions about why you went that route and what your
> experiences with it are.
>
> Oh, that article is at http://www.brianmadden.com/thin
***********************************************
This e-mail and its attachments are confidential
and are intended for the above named recipient
only. If this has come to you in error, please
notify the sender immediately and delete this
e-mail from your system.
You must take no action based on this, nor must
you copy or disclose it or any part of its contents
to any person or organisation.
Statements and opinions contained in this email may
not necessarily represent those of Littlewoods.
Please note that e-mail communications may be monitored.
The registered office of Littlewoods Limited and its
subsidiaries is 100 Old Hall Street, Liverpool, L70 1AB.
Registered number of Littlewoods Limited is 262152.
************************************************
********************************************************
This weeks sponsor Vizioncore, Inc.
--> vc-iMonitor - Performance Monitoring, Control & Reporting
--> vc-iControl - Desktop & Start Menu Management & Reporting
--> vc-iMapper - Drive, Printer & COM Management & Reporting
http://vizioncore.com/products.html
**********************************************************
Useful Thin Client Computing Links are available at:
http://thethin.net/links.cfm
***********************************************************
For Archives, to Unsubscribe, Subscribe or
set Digest or Vacation mode use the below link:
http://thethin.net/citrixlist.cfm
********************************************************
This weeks sponsor Vizioncore, Inc.
--> vc-iMonitor - Performance Monitoring, Control & Reporting
--> vc-iControl - Desktop & Start Menu Management & Reporting
--> vc-iMapper - Drive, Printer & COM Management & Reporting
http://vizioncore.com/products.html
**********************************************************
Useful Thin Client Computing Links are available at:
http://thethin.net/links.cfm
***********************************************************
For Archives, to Unsubscribe, Subscribe or
set Digest or Vacation mode use the below link:
http://thethin.net/citrixlist.cfm
Other related posts:
