Dear All,
i have a VM with 3vCPU and 12 GB of RAM running heavy tasks on it.
Customer reports that on every monday the VM goes unavailable for 10 minutes and it affects production.
Earlier VM Settings are below:
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VM - Guest OS-w2k3
RAM-12GB Limit set as 1GB
CPU- Limit set as 1.47ghz
So i Found that May be the VM Constraint for CPU Resources and Removed the Limit in Resource Allocation and Set as unlimited CPU Cycles to VM.
And this monday Customers reporting the same Issue.So i think the VM is not constraint for CPU Cycles.
So i Thought of removing the Limit on Memory too( thinking to set unlimited), Please advise is this cause any performace problems in VM/DRS Cluster( I have enough Memory in Cluster).
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Below is the idea i captured on VMware Performace Troubleshooting guide, May i Proceed with Memory Setting change as Unlimited.
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Increase the amount of memory allocated to the virtual machine. This action decreases disk and or network activity for applications that cache. This might lower disk I/O and reduce the need for the host to virtualize the hardware. Virtual machines with smaller resource allocations generally accumulate more CPU ready time.
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Thanks and Regards,
Rajesh