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Windows Server 2008 R2 Thread, CPU really High in Technical; Hi Everyone About 2 hours ago, the CPU on th 2008r2 file server started to run really high (80-100%) The ...
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    CPU really High

    Hi Everyone

    About 2 hours ago, the CPU on th 2008r2 file server started to run really high (80-100%)

    The process that seems to causing is "System" which is the NT Kernel & System

    Any ideas? I haven't yet done a reboot.

    Thanks
    Last edited by techie08; 11th November 2010 at 03:12 PM.

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    glennda's Avatar
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    open some kind of process monitor - could be something like hardware intercepts - no failed disks in the raid?

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    Quote Originally Posted by glennda View Post
    open some kind of process monitor - could be something like hardware intercepts - no failed disks in the raid?
    Hi Glennda

    The server is a VM.

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    glennda's Avatar
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    what hypervisor?

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    Quote Originally Posted by glennda View Post
    what hypervisor?
    Its VMware VSphere

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    glennda's Avatar
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    Quote Originally Posted by techie08 View Post
    Its VMware VSphere
    ahh okay if it was KVM i knew there was a problem - with high hardware intercepts

    I would still check a process monitor as it will tell you which parts of the system process are using the high cpu loads

    also any event log entries?

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    There are loads of 2012 srv warnings saying
    "While transmitting or receiving data, the server encountered a network error. Occassional errors are expected, but large amounts of these indicate a possible error in your network configuration. The error status code is contained within the returned data (formatted as Words) and may point you towards the problem."

    This has been happing for about 4/5 every day.

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    glennda's Avatar
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    Well that event id says there is a problem with the Nic - but apart from that i don't use VMware anymore so can't help sorry

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    Domain Controller with 2012 Errors and Connectivity Problems

    Might be worth killing the vNIC, removing it and throwing in a new one. Also, are the VMWare tools fully up to date?

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    salan's Avatar
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    We have this for about one hour a day on the two file servers but not the Dc's
    Not got to the bottom of it yet. All the usual suspects proved innocent(AV,etc,etc).
    Updated tools. redone nic and ever rebuilt the machines.

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    Take a look at things like checksum offloading. I had an issue a while back with a VM having issues with that.

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    Quote Originally Posted by salan View Post
    We have this for about one hour a day on the two file servers but not the Dc's
    Not got to the bottom of it yet. All the usual suspects proved innocent(AV,etc,etc).
    Updated tools. redone nic and ever rebuilt the machines.
    My 2008r2 DCs are fine as well.

    Are yours still having problems even with the rebuild?

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    are your nic/vswitches vlan tagged / trunk ports?

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    I find that many errors don't really influence system performance, depends on the error obviously......Reboot is the first thing I would have tried though, fixes most Windows issues in a hurry

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    Quote Originally Posted by kevinbrd View Post
    I find that many errors don't really influence system performance, depends on the error obviously......Reboot is the first thing I would have tried though, fixes most Windows issues in a hurry
    Im going to give that a go at the end of today.



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