December 2017
Beginner
598 pages
14h 7m
English
Content preview from Mastering VMware vSphere 6.5
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VM storage layout
You can choose different VMDK provisioning as described before. EZT disks provide the best performance (also for the first writes), but they occupy the entire space including unused space, so they are not efficient with space utilization. LZT is the most common choice. Thin disks require more management attention to avoid excessive storage over-provisioning.
For more considerations of different virtual disk types in term of performance, see the blog post at https://blogs.vmware.com/vsphere/2014/05/thick-vs-thin-disks-flash-arrays.html.
For the different virtual storage controllers, this table recaps the different types and possible use cases:
|
Controller type |
VM type |
Minimum virtual hardware |
Use cases |
|
BusLogic ... |
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