Duncan is the owner of presexdilsini.cf, the leading VMware blog. VMware vSphere HA and DRS Technical Deepdive zooms in on two . Ordered the book and downloaded the PDF as well for best practices of HA. presexdilsini.cf . VMware vSphere HA and DRS Technical Deepdive zooms in on two key. The first edition, “VMware vSphere HA and DRS technical deepdive” has been extremely popular, so popular in fact, that this book is all about. HA and DRS.
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VMware vSphere deep dive - part 1. 1. vSphere Delta to Tech Sharing for PartnersIwan 'e1' Rahabok, Senior Systems. VMware vSphere 5 Clustering Technical Deepdive: Computer and co-author of “VMware vSphere HA and DRS technical deepdive. VMware vSphere HA and DRS Technical Deepdive zooms in on two . Actually I was thinking there would be a electronic pdf format soon.
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Delta to 4. Consulting Services: Use existing one. If not, you might experience issues while booting the ESXi installer on a heavily loaded Network.
This will come in very useful when trying to split machines over multiple blade chassis, or trying to ensure a certain VM lives on newer better performing hosts etc. Memory Compression.
Compressed memory is a new level of the memory hierarchy, between RAM and disk. Slower than memory, but much faster than disk, compressed memory improves the performance of virtual machines when memory is under contention, because less virtual memory is swapped to disk.
VMware have certainly done it again with this one, first we had transparent page sharing we now have memory compression when memory is contended on a host.
Memory compression is enabled by default and when a memory page needs to be swapped first of all ESX will attempt to compress the page. You are able to disable or fine tune this feature with the mem advanced settings.
In vSphere 4. The result is a performance improvement of up to 8x for an individual virtual machine migration, and support for four to eight simultaneous vMotion migrations per host, depending on the vMotion network adapter 1GbE or 10GbE respectively.
The connection is maintained even if you migrate the virtual machine using vMotion. It is important to understand how this works to avoid any 'schoolboy errors' or mis-calculations in your design.
Rule 1: Remember this, "The hostess with the mostess" - the ESX host with the most available slots will be taken out of the equation when calculating HA admission control.
If so, then the virtual machine with the largest reservation on a given host is taken into account. Repeat this for the remaining virtual machines on the host see flowchart. In this example the result would be: Memory: Calculating the Number of Slots Available Now we have the slot size for our ESX host, the next step is to work out how many slots we have.
For example, using our figures above Mhz and