22.08.2012 20:35 (comments: 0)

vCloud Director Fast Provisioning condsiderations

The number of datastores affects manageability, and therefore the fewer datastores involved the better. In terms of fast provisioning, IOPs are a better metric to watch and using caching for the type of use (read caches for VMs that do a lot of lookup, write caches for VMs that write a lot) are larger benefits.

Factors to consider that affect performance include:
- total number of VMs on volume
- IOPS capability of volume (underlying disk aggregate)
- fast provisioning enabled
- thin provisioning enabled
- rate of power operations on VMs
- rate of cloning operations,
- cache size and balance (rea d/write)
- level of VAAI integration
- number of connected hosts.

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