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vCenter 6 VM Deployment from Template and Storage DRS

We have DRS enabled on our clusters but set to manual mode for a number of reasons. I would like to setup and enable Storage DRS as well in manual mode.  When a junior admin deploys a VM from a template they select a host and datastore but on power one DRS will kick in and suggest the best host to place it on which is perfect. But for storage DFS when would the suggest kick in during the VM deployment? Also we use thin provisioning, if free space based off of the provision spaced?
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compdigit44
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compdigit44
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Storage DRS obtains resource information, e.g. usage on all datastores in the cluster, and then generates recommendations.

It uses this information for placement on the datastores in the cluster.

It will do this automatically, if enabled, and set to automatic, if you have it set to manual, you will have to refresh and apply.

Not sure why you don' set it and forget it, and it will apply, at point of deployment, and clicking the button.
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compdigit44Author Commented:
Thank you for your feedback down the road I would like to move to more a more automated environment but we have to address so other areas first. So when a junior admin deploys a VM is storage DRS is enabled an setup to manual it will not prompt then with a list of recommendations. Also is free space based off of provisioned space
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Storage DRS obtains resource information Space Utilization % Before & After  (source) and (destination) provisioning.

two of the metrics used.
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compdigit44Author Commented:
but would it prompt the admin which datastore is "should" use during a VM deployment.  Also I must be missing something here but were are using thin provision on our VM's od storage drs does not take this into consideration?  I am carefully not to overcommit my datastore beyond 110%
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Storage DRS is thin provision aware.

In manual mode, it will recommend a virtual machine placement, based on metrics it's obtained, just like DRS for Host Clusters.

but after initial placement, refreshing may yield a new datastore to move to in the datastore cluster.
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compdigit44Author Commented:
Sorry for the delay in getting back to you and thank you for your input. What has been confused is that when someone deploys a VM from a template to a host that is part of the DRS cluster set to manual mode DRS never comes up with a dialog box of recommended host they should use.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
does it not ask for placement ?
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compdigit44Author Commented:
Correct right now when we deploy a VM to a host that is part of a DRS  cluster set to manual mode it does not present a list of recommended host. It will only present this screen after the host is powered on
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
and when powered on, is that the Host or Datastore ?
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compdigit44Author Commented:
Since we only have DRS for the host it is on the host side only.. sorry  for the confusion
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
so it will not do Storage DRS
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compdigit44Author Commented:
So in short Storage DRS will not give any recommendations when deploying a VM when set to manual mode correct?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It should do. Unless VMware have changed the specs again.

We would have to test, don't see the point of having it in manual mode!
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compdigit44Author Commented:
Thank you for your help as always.. It is always greatly appreciated.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Not a problem, always glad to give you some practical advice, based on real world!
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