Usually this happens due to wrong network configuration and/or slow storage performance, but in your case it seems like blade servers provided a faster provisioning process. You have to look at the hardware specifications for both BLADE/RACK & see which one Cisco UCS B22 M3 Blade server/Cisco UCS C240 M4 Rack server is more reliable and effective for virtualization. If provisioning was completed with no issues then that's telling you that Horizon View is not the problem and you have to look for hardware performance.
Blade server, Provisioning = 15
Rack server, Provisioning = 40
This is pretty much the average for provisioning in basic servers but it's not always the case, everything depend on what your servers are capable of doing and how you configure them.
EXAMPLE:
1500 VMs or more – blade servers are the better solution and remember to plan for multiple failure domains, maintenance mode and upgrades.
1000 VMs or less – rack mounted servers are a better solution and remember to build enough extra capacity into your environment to allow a host to be evacuated.
Raul.
VMware VDI Administrator.
http://ITCloudStream.com/
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