COS
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Expert

Nested ESXi using SSD LUN

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I have Workstation 9.something and I have 2 esxi guests and a few 2008 R2 and 2012 servers.

When I put the Windows based guests on the SSD LUN's, they get close to native speeds ~450 - 475MB/s.

But when the esxi guests have a nested Windows guest within it, and I put that nested Windows guest on the SSD lun, it get only ~120MB/s.

The tool I am using is SQLIO for iops and MB/s and set for random read & writes.

Is this normal? Is there a bottleneck to the esxi's disk driver?

I would think I could get at least 400MB/s, but only 120MB/s?

Thanks

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admin
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I/O bound workloads fare poorly in nested VMs, particularly on hosted products (Workstation and Fusion).  When running a nested VM under Workstation/Fusion, 20% - 25% of the performance of a non-nested VM is fairly typical for an I/O bound workload.

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admin
Immortal
Immortal

I/O bound workloads fare poorly in nested VMs, particularly on hosted products (Workstation and Fusion).  When running a nested VM under Workstation/Fusion, 20% - 25% of the performance of a non-nested VM is fairly typical for an I/O bound workload.

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COS
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Expert

Oh well....

At least I gave it the good ol college try. :smileysilly:

Thanks

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