Medium point charge when copy/move files

Hello

I'm under vSphere, ESXi, the free version, on a HP ML350 G6. The host server has 10GB of memory, processor E5620 and SATA hard disks that are directly related. I run 6 virtual machines on this particular server - very low use of resources on them.

My problem is that when I move or copy files large (2-4 GB), the average of the load of the particular virtual machine I work at spikes in the double digits. The virtual machine is running CentOS 5.5. For the VM swap file is located on a disk separate physics than the OS. One thing I noticed, is that the hypervisor can't determine whether or not the hardware acceleration is enabled for the storage controller (Smart Array P410i). It shows as "unknown" in the vSphere client. I'm sure that this option is enabled.

Could someone send me in the right direction on how to fix this I/O please. If you need more information, let me know.

Thank you

Stem

I'm not sure the kind of hardware acceleration that André talks (VAAI) will help, even if you were to get the right storage array and vSphere license.  VAAI helps a lot for operations such as cloning VMs, creating new virtual hard disks and a few other things.  But the problem occurs when copying large amounts of files within the BONE, good guest?  If Yes, then VAAI won't make a difference.

For what it's worth, I think that vSphere Essentials bundle is an absolutely steal to get a licensed vSphere product.  It of only $ 500 and includes licenses for up to three physical servers running ESX or ESXi, and it includes a copy of vCenter.  The copy of single vCenter is worth the price.

It is possible that the copy of file takes up so much CPU resources that other processes are forced to wait.  How many VCPUs are assigned to the virtual machine?  Maybe try to assign another vCPU and see if that helps the issue.  Switch to another card pilot virtual NETWORK (such as the VMXNET 3 driver) can help reduce the CPU during large copies as well, but probably not a huge amount.  I'd like to see how the virtual machine works with 2 vCPUs.

Matt

http://www.thelowercasew.com

Tags: VMware

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