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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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Expert Comment

by:Amit
ID: 41833728
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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Author Comment

by:pramod1
ID: 41833774
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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LVL 45

Expert Comment

by:Amit
ID: 41833780
Is this VM or Physical? And how many CPU and RAM assigned to this server.
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Author Comment

by:pramod1
ID: 41833796
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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Author Comment

by:pramod1
ID: 41833817
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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Author Comment

by:pramod1
ID: 41833847
IS IT because both exchange server send LDAP at same time?
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Accepted Solution

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Amit earned 2000 total points
ID: 41833869
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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Author Comment

by:pramod1
ID: 41833880
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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