In the “CPU/MEM Reservation Behavior” article there was a lively discussion going on between Chris Huss(vmtrainers.com) and myself. I think the following comment by Chris more or less summarizes the discussion
I wasn’t aware that the balloon driver was involved with the Mem.IdleTax. I haven’t seen any documentation stating this…and assumed that the VMkernel just stopped [...]
Posts Tagged ‘esxi’
Reclaiming idle memory
March 11th, 2010
6 Comments
VM powered on Alarm?
March 9th, 2010
No Comments
One of my readers(Thanks Andrzej!) emailed me something that I thought might be interesting for those who are closely monitoring their environment.
Did you know that there are two similar VM event triggers in Alarms in vCenter?
VM powered on
DRS – VM powered on
The first only works for VMs outside of DRS enabled clusters. The second only [...]
Adding NICs to your vSwitch on ESXi?
March 9th, 2010
5 Comments
I just finished installing vSphere ESXi 4.0 update 1, I used all the default settings. I expected that all my portgroups would inherit all their settings from the vSwitch that was configured during installation… unfortunately this is not the case as can be seen in the screenshots below.
Default install with no redundancy:
VM Network inherits from [...]
Single Initiator Zoning, recommended or not?
March 4th, 2010
15 Comments
A question we receive a lot is what kind of zoning should be implemented for our storage solution? The answer is usually really short and simple: at least single initiator zoning.
Single initiator zoning is something we have always recommend in the field (VMware PSO Consultants/Architects) and something that is clearly mentioned in our documentation… at [...]
CPU/MEM Reservation Behavior
March 3rd, 2010
21 Comments
Again an interesting discussion we had amongst some colleagues (Thanks Frank, Andrew and Craig! Especially Craig as most text below comes from The Resource Master). The topic was CPU/Memory reservations and more specifically the difference in behavior of these two.
One would expect that both a CPU and Memory reservation would have the same behavior when [...]
Disable Tech Support on ESXi?
March 1st, 2010
17 Comments
We had an interesting discussion on one of the internal mailing lists this week. Someone asked what the general opinion was about disabling Tech Support. Of course some said disabling should not be a problem, but many also disagreed. The reason for this is simple: Support.
When Tech Support is disabled it removes the option to [...]
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