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Westley
Posting Yak Master
229 Posts |
 Posted - 2006-08-25 : 03:21:49
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| Hi guys, got an interesting one, I got a cluster with many instances running on each node, each node got 8G of RAM, but the interesting part is on Node A, it keeps on hitting the page file, where the usage is over 90% flat, and usage peak at 100% flat. But in Node B, the page file doesn't get hit at all? Am not too sure whats the diff between the 2, any ideas?On Node A, the phyical ram shown on task manager is only using around 4G, and its a Win 2003 Ent server with SQL 2k Ent, boot.ini already have /3gb and PAE switch. All SQL instances have AWE enable (someone set that before as its not really required since no one instance use more then 4G of ram)Any ideas? |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2006-08-25 : 03:25:52
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| How is the cluster set up? Failover? Load balancing?Peter LarssonHelsingborg, Sweden |
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Westley
Posting Yak Master
229 Posts |
Posted - 2006-08-25 : 03:43:08
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| its a windows cluster, so load balancing, active-active since I have instances on both nodes :) |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2006-08-25 : 03:56:58
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| I have to ask, since the possiblitiy of Active/Passive configuration.Peter LarssonHelsingborg, Sweden |
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Westley
Posting Yak Master
229 Posts |
Posted - 2006-08-25 : 03:58:43
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| Thats cool, any ideas? as it seems that its using virtual memory instead since its keep hitting the page file, but there are around 4G free of phyical ram on the box, and its not taking it, there is no app install as its a pure sql server box, any ideas? |
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Westley
Posting Yak Master
229 Posts |
Posted - 2006-08-25 : 04:01:18
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| By the way, if its a Active/Passive, it shouldn't happen as well isn't it? since there are still got free phyical ram, it should hit the page file anyway? Or something I'm missing here?I remember that is AWE enable, it will initial the ram first, and taken everything even if you set it to use dynamic, but if its less then 4G for the instance, AWE will get ignored (which should be the case here). |
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RAM setting