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Windows 2003 Cluster Memory used Per Managed Resource

Posted on 2009-05-19
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Last Modified: 2012-05-07
Right now I'm running teo Windows 2003 Storage Edition R2 64-bit edition servers in a active /passice configuration. I wondering if there is a to see how much memory each manage resourse is using on our cluster
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Question by:compdigit44
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14 Comments
 
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Expert Comment

by:oBdA
ID: 24423794
Negligible. The maximum amount of resources you can create on a W2k3 cluster is about 1600, but Microsoft recommends to not even come close to this limit. Any specific reason for your asking or are you just curious?
Using a server cluster with large numbers of file shares
http://technet.microsoft.com/en-us/library/cc780150(WS.10).aspx
Increasing Data Availability by Using Clustering
http://technet.microsoft.com/en-us/library/cc757115.aspx
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by:compdigit44
ID: 24423880
RIght now my cluster has 145 resource both of my cluster nodes are running 2k3 Storage Edtion R2 SP2 64bit edition with 4GB of ram. I noticed me active node is constatly runnong at 85% of it's max memory is this normal?
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Expert Comment

by:oBdA
ID: 24424105
I cleaned out a cluster with something like 250 resources, replacing the single share resources for the home drives with automatically shared subfolders, and that cluster was running without problems on W2k with 512MB, so the number of resources shouldn't be the issue here. Even NT4 could manage 1600 resources, and in the days of NT4, 4GB was a good-sized hard drive, not the RAM.
Since this is storage edition, I assume that most of these are shares? Have you noticed the "Automatically share subfolders" property of a share resource? With the proper folder structure, you can create a lot of shares with a single resource, which improves the failover time drastically (and lessens the load on the cluster service a bit, because it has less resources to check).
Implementing home folders on a server cluster
support.microsoft.com/kb/256926
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Author Comment

by:compdigit44
ID: 24424130
These server are running McAfee Virusscan 8.5i is this makes a difference at all???
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Expert Comment

by:oBdA
ID: 24424321
Could be the culprit, depending on the traffic on your servers. Have you checked in task manager which processes are using huge amounts of memory?
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Author Comment

by:compdigit44
ID: 24424473
I just check task manage and McShield.exe is the top memory using process at 150,087k
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Expert Comment

by:oBdA
ID: 24424523
What's the information in the System Performance tab of task manager?
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Author Comment

by:compdigit44
ID: 24424546
Currect CPU usage = 2%
PF Usage = 0.99GB
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Expert Comment

by:oBdA
ID: 24424574
I actually meant the bunch of text information below the graphics ...
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Author Comment

by:compdigit44
ID: 24425724
PLease see the screen shot below
task-manager.bmp
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Expert Comment

by:oBdA
ID: 24426311
You should be just fine--it's just using the memory as file cache (note the "System Cache" entry in Physical Memory) (all the memory has to be good for something, after all).
"Windows Server 2003 automatically trims the cache when memory is scarce and enlarges the cache when memory is ample."
Monitoring the File System Cache
http://technet.microsoft.com/en-us/library/cc757398(WS.10).aspx
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Author Comment

by:compdigit44
ID: 24440564
But why does my performance monitoring application show that 85% of this memory is in use????
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Accepted Solution

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oBdA earned 500 total points
ID: 24440618
Because it *is* in use? And because it is put to good use, namely as a cache so that your client file access is quicker?
What good would 3.5GB of unused memory do you--you've paid for it, after all?
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by:compdigit44
ID: 24442051
ok I understand...
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