Tip 3 - ESX4 running unusual performance of Hung VM - node cluster...

Hello community,

I use useful overview to a question we've experienced in our production environment on a cluster of 3 nodes that had a virtual computer running on it.  The virtual machine is used only for printing isolate us applications running together on similar servers.  The technician who was working the issue being reported a number of things, but I wasn't there so couldn't say what has been done.  The end result was that he had to perform a "reset" of the virtual machine, because it could not connect via RDP and the console does not accept the CtrlaltDELETE.  VMware tools is updated. It will be later tonight so I'll tell you about him for more details on the issue and what diagnosis was made.  The problem occurred this morning to 01:30-02:30 am on the 'C' host (host are 1 a, 1 b, 1 c).  Seeing as just two days ago, I reached my VCP, I thought I'd like to look deeper into the problem.  What I found was a bit intriguing.  There is no change somehow to the recenetly cluster other than adding some VM makes.  At the time of the issue, that nothing has been performed we could very well connected in vCenter.  I also logged on to the console and found it EXTREMELY laggy.  This is partly due to the fact that we use vCenter here in our home office and all Distribution Centers to meet the vCenter here so I don't know that it's because of WAN.  Anyway, finding that he was still on which I just decide to look at some statistics and performance counters in vCenter.  What I've discovered, is that between the time where the problem occurred in fact there is a pretty big spike in all activities related to the disk, memory, network, and CPU.  See the attached images.  I thought it was very interesting, and anyone could build a helping hand in perhaps seeing what may of caused this type of spike in any army of this group which would be very useful.  All virtual machines are supplied with 1vcpu and only 4 GB of memory.  We use the Solutions of HP Lefthand VSA for shared iSCSI storage.  Appreciate any comments!

Given, you have iSCSI storage connected to the ESX servers, it is normal to have spikes on the CPU, disk and network if you use normal NIC (not iSCSI HBAS). When ESX disks on storage iSCSI via NETWORK card normal access, it access to content on the network and uses the CPU to process the iSCSI packages. If you have iSCSI HBA, you shouldn't see peaks of the use of the processor like this.

Tags: VMware

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    Hi all

    I run a Performance Rating in Windows Vista yesterday.

    It is excellent!
    Base score was 4.7 (overall rating)

    Under Scores as follows:

    {color: #0000ff}
    Processor calculations: 4.9
    Memory :4.8
    Aero Glass graphics: 4.7
    Games graphics: 4.7
    HARD drive: 4.7 {color}

    I'm thrilled about my new A200 - 1 GB.
    I found his performance is very good with Win Vista.

    Thanks again for Toshiba!

    Dear friends... Send comments on this...

    Kind regards

    Updates will not increase this Vista scores!
    I noticed that each new installation of driver or the application decreases the score.

    I found lots of useful information on other computers and websites vista and it seems that is nothing unusual. It seems all the operating systems and the modification of the registry entry has a bad influence on this Vista partition.

    Need simply s Vista ;)

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