VMware ESXi 4.1 Embedded and vCenter Server 4.1 Edition


ESXi Configuration Guide : Storage : Managing Storage : Changing VMFS Datastore Properties : Increase VMFS Datastores

Increase VMFS Datastores
When you need to create new virtual machines on a datastore, or when the virtual machines running on this datastore require more space, you can dynamically increase the capacity of a VMFS datastore.
Use one of the following methods:
Note
If a shared datastore has powered on virtual machines and becomes 100% full, you can increase the datastore's capacity only from the host, with which the powered on virtual machines are registered.
 
Procedure
1
2
Click the Configuration tab and click Storage.
3
4
Click Increase.
5
6
Depending on the current layout of the disk and on your previous selections, the options you see might vary.
7
By default, the entire free space on the storage device is available.
8
Click Next.
9
What to do next
After you grow an extent in a shared VMFS datastore, refresh the datastore on each host that can access this datastore, so that the vSphere Client can display the correct datastore capacity for all hosts.