RHEL 5 32-bit question

m1ldslide1

Platinum Member
Feb 20, 2006
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I'm running ESX 4.0 (64-bit) on a server with 12GB of memory, and have installed a guest running RHEL 5 32-bit since the application I'm going to use only supports the 32-bit OS. However, the whole reason I'm moving this application to this server is to try and take advantage of more memory. So what's the story here? Is there a PAE install available for RH that will allow me to use more than 3.2 gigs? Is PAE support built-in? Is it not even a concern with RH?

Thanks!
-mild
 

xSauronx

Lifer
Jul 14, 2000
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the memory limitation that requires PAE is a windows-only problem. you just need to make sure that youre running a kernel with PAE and you should be fine.

http://www.centos.org/modules/...opic.php?topic_id=8457

its an old thread on CentOS (which is derived directly from RHEL) but should address your question. im not certain, but the installed kernel may have PAE enabled to start with depending on the kernel revision you have *shrug*
 

m1ldslide1

Platinum Member
Feb 20, 2006
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I guess I'll find out once the app is loaded and starts churning... Thanks for the response- it is encouraging to hear.

-mild
 

Nothinman

Elite Member
Sep 14, 2001
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PAE lets the kernel have access to >4G of memory, but each 32-bit process will still be limited to 3G of VM.