Remote Desktop freezes after 5-10 minutes work when accessing XP Clients from vmware on RHEL 5.2

I have a VMware Server 2 running on a RHEL 5.2 host. There is a software RAID 1 and all vms are located on this mounted RAID 1.
Whenever I use remote desktop to connect to client (Windows XP) every 5 to 10 minutes the client stops responding. All freezes. After a 1 min everything goes back to normal. What might be wrong? Is it VMware Server 2 or RAID configuration?
itconsultant1Asked:
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Morne LateganConnect With a Mentor Commented:
State : clean

The array is not rebuilding, which was what I was wondering about. So all seems in tact.

If you have any sort of bad block, dmesg will report I/O errors. These typically make the system freeze for periods of time while the OS try to sort out the bad blocks. If you don't have I/O errors, it rules that part out.
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Morne LateganConnect With a Mentor Commented:
Does the host have enough RAM? (swap issue)
Do you have InCD installed on the guest?
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manav08Connect With a Mentor Commented:
Have you tried Defragmenting your VMs at all.
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itconsultant1Author Commented:
Host - 4GB of RAM
Guest - 512MB of RAM
No InCD installed on Guest.
No defragmenting done - how do I do it? Within Guest or Host?
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Morne LateganConnect With a Mentor Commented:
vmware-vdiskmanager -d myDisk.vmdk and then get a pot of coffee if its a large disk. If you have snapshots, remove those first (and again, get coffee if its a large disk).

Lots of questions: If you do dmesg, does it report I/O errors? Does mdadm --detail /dev/md<x> (your md device) report your array as consistent? Is the StepStep disabled?
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Morne LateganCommented:
SpeedStep, not StepStep
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itconsultant1Author Commented:
Uberpappa, I'll run all diags and defrag later tonight and let you know the results. Thanks!
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kumarnirmalCommented:
Also check the Power and Screensaver Settings in the Virtual Machine
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itconsultant1Author Commented:
Uberpappa:
vmware-vdiskmanager -d myDisk.vmdk - command ran and there is an improvement but in overall prefromace of the guset. Freezes still exist.
dmesg - I didn't see anything with errors, unless there is something specific I should look for?
mdadm --detail /dev/md<x> below
mdadm  --detail /dev/md1
/dev/md1:
        Version : 00.90.03
  Creation Time : Thu Dec  4 10:21:06 2008
     Raid Level : raid1
     Array Size : 727037504 (693.36 GiB 744.49 GB)
  Used Dev Size : 727037504 (693.36 GiB 744.49 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Fri Feb 20 11:38:49 2009
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : b84574da:cfc77875:0c85450b:8b824440
         Events : 0.12

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1


Is the SpeedStep disabled? - Could you elaborate?

kumarnirmal:
host:
apmd is not supported by the kernel
acpid deamon is running
guest:
has enabled screen saver, power settings to always on
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Morne LateganConnect With a Mentor Commented:
Its usually under the processor configuration in the BIOS (of the host). On my BIOS it clearly says "SpeedStep [Enabled/Disabled". SpeedStep allows the processor to slow down and speed up when the system requires it. This is designed for battery saving (and probably cooling). It does not play well with VMWare.
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itconsultant1Author Commented:
Checking BIOS settings may be tough since it is server on a remote site. I would have to look into HP specifications and see what the default settings for SpeedStep are.
Does mdadm print out tell you something? What should I grep for in dmesg?
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itconsultant1Author Commented:
Removed VMware Server 2, installed VMware Server 1. Now all works smoothly!
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