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Posted on 2016-10-07
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we have 1 mailbox server which uses 2 DC which in turn are on exchange server 1 and exchanger server 2. 1 dc is on CAS and Hub Server and other dc is on exchange server which has just EMC installed and is used as management server. both are in same forest

we see CPU hikes during morning hrs , It shows in task manager about high lsasse.exe as users log in during morning but my question is

why the other exchange server which is management server experiences cpu hikes
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Question by:pramod1
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by:Amit
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Check handles count for lsass.exe. If it is above 50K then you will see issue. Also see, which process is actually showing high CPU, when this issue occurs again.
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by:pramod1
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I told earlier it is high lsasse.exe but what is the reason that other server experiences as  this server is management server
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by:Amit
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Is this VM or Physical? And how many CPU and RAM assigned to this server.
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by:pramod1
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it is physical 4gb ram 1 processor but the other exchange server should handle all the directory looks ups, how this server is getting into the picture
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by:pramod1
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dc on exchanger server 1 which is cas and hub doesn't experience lsasse.exe hike but the management server does?
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by:pramod1
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IS IT because both exchange server send LDAP at same time?
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Amit earned 500 total points
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I see you have very low hardware, 4 GB with 1 CPU pretty low. You should minimum get 12-16 GB RAM with minimum 4 -8 cores.
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by:pramod1
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this is 1 part of  answer amit, I am asking why the other server is experiencing high cpu

is it because of intra site replication of DC
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