Zade
Enthusiast
Enthusiast

Expanding a datastore in vCenter with VMS running

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We have expanded our Volume and LUN on our NetApp SATA VMStore from 2TB to 4TB, we now want to expand within vCenter, am I ok to do this inside of office hours whilst vms are running on the datastore?

Going in via configuration - storage - etc etc..

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abhilashhb
VMware Employee
VMware Employee

It should be fine. Off hours is better, as you have to perform rescans etc.

This will not affect the VM's running in it.

Unless there is a specific requirement, why not go with 2TB LUNs? I mean add another LUN of 2TB instead of adding an extent?

Abhilash B
LinkedIn : https://www.linkedin.com/in/abhilashhb/

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rcporto
Leadership
Leadership

You can do this with VMs running without problems, but if LUN experiences high I/O you can schedule this operation to non-business hours and with low I/O.

Check this KB article for more detailed information: VMware KB: Growing or expanding a VMFS volume or datastore

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Richardson Porto
Senior Infrastructure Specialist
LinkedIn: http://linkedin.com/in/richardsonporto
abhilashhb
VMware Employee
VMware Employee

It should be fine. Off hours is better, as you have to perform rescans etc.

This will not affect the VM's running in it.

Unless there is a specific requirement, why not go with 2TB LUNs? I mean add another LUN of 2TB instead of adding an extent?

Abhilash B
LinkedIn : https://www.linkedin.com/in/abhilashhb/

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