RAM cache too big server 2008

February 4, 2010 at 19:32:07
Specs: Server 2008
Hey all,

Having some issues with Server 2008. My server is giving users the error "insufficient system resources..." Whenever they access network resources.

My server has 8gb of RAM but over 6gb is being cached currently (only 50% is being used physically). So the server is completely out of memory.

How can I limit the amount of memory the server will cache?

Any help is much appreciated, cheers.

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February 5, 2010 at 06:41:53
what version of 2008? Standard?
Post the specific error and exactly when it occurs
what apps are loaded on the server?
issue goes away after a server reboot?

I believe you are misdiagnosing the issue. 50% or using 6gig out of 8 is not a cache or memory issue.

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February 5, 2010 at 13:01:32
Standard X64.

Basically on a few of the client machines I receive this message "insufficient system resources exist to complete the requested service" when trying to access any network shares, printers etc. Restarting the client machine fixes the issue.

On the server when I look at the performance TAB the memory free, under caching is often at 0mb. I know server 2008 will utilise all possible memory but I did not think it will run it to empty.

Server is running IIS7, mysql server, symantec endpoint (with no client machines connected currently). and several other small applications. When I check the memory usage of the applications none of them seem to have any memory leaks.

thanks for your reply.

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February 6, 2010 at 09:17:43
standard x64 supports up to 32gig so we know we don't have an os limiting factor.

The circumstance you mention about the workstations getting the message makes me think it a licensing or concurrent connection issue.

xp pro not home being used?
wksts members of the domain?
all shares are on the server?
how many cals and how many workstations?

If you look at the workstations event viewer log when they get the message and before you reboot what events in red are listed?

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Related Solutions

February 6, 2010 at 15:00:20
Yes, XP pro and all connected to the domain. We've had the server set up for several months now, and this issue has only just arisen. The server did have an issue a couple of weeks ago though, where the dhcp service stopped due to lack of resources apparently.

I can't seem to find anything in the event log mentioning this issue though.

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February 6, 2010 at 17:19:31
I would want to know the exact error messages related to dhcp failing.

It is my understanding that server dhcp services will fail if they detect another dhcp server. Do you have a router? Could it be providing dhcp?

How about the answers to the last two questions in #3?

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February 11, 2010 at 01:41:23
I'd like to say that I couldnt beleive it when I read it, but apparently Micro$oft has a very openly known and debated memory management issue on at least one of their 64 bit operating systems. I saw something somewhere of a little script someone had written that you could run every time you boot up that would setup some kind of cache limits that would prevent it from running afoul. Maybe check to see if your issue is related to this problem surrounding one of their big archetectural choices that many people are in favor of, or accustomed to ... ? Sorry I dont remember more detail, if I come across the specific error I was getting I may think to post more about it. Check your windows event log and see if anything shows up there.

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February 15, 2010 at 18:32:22
Should have been in the event logs but they are sometimes difficult to manage.

Are you sure it isn't an SSL issue? http://forums.iis.net/t/1147807.aspx

It is network related not a RAM issue I think.

Playing to the angels
Les Paul (1915-2009)

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February 16, 2010 at 20:30:34
lorby I took "network" to mean lan. Are you talking FTP or internet? If not ftp or internet ssl does not apply.

Always beware of hearsay.

I could not find a thing related to what ken.papa wrote about.

Anyone else?

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February 17, 2010 at 13:36:09
"Always beware of hearsay."

Could anyone tell me how the OP might possibly benefit from a comment like beware of hearsay?

Playing to the angels
Les Paul (1915-2009)

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February 17, 2010 at 17:58:07
Read post 6 jefro.

Did you find anything on the web to support ken.papa allegations of memory issues in x64 server as described?

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February 18, 2010 at 15:05:14
His statement was network.

Read very first statement.

"Whenever they access network resources."

Many web pages support an issue with network tasks failing that cause his error. I assume his assumption of memory to be incorrect.

You can continue to follow up on an assumption of memory or follow the web posts on network.

Playing to the angels
Les Paul (1915-2009)

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February 18, 2010 at 17:13:50
I see. You didn't read post six and are having a conversation with someone else. Have a nice day.

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February 18, 2010 at 22:41:13
Hello all, back again.

Thankyou very much for all your responses. I have updated the server with the latest service pack and it is now using a much more reasonable amount of memory for caching. And it is no longer dropping to zero free constantly. The problem has not arisen again.

thanks again guys

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February 19, 2010 at 08:41:31
Thanks for the info lorby
This helps alot if we see a post like yours again

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