To provision storage, including the All-SSD high performance storage, you must be aware of the following prerequisites and limitations.

Before you can provision storage (specifically the All-SSD high performance storage), you must meet the following prerequisites:

To have access to the new All-SSD high performance storage options, your Dedicated Cloud subscription account must be upgraded to the new Service Realm platform. This guide documents how to manage block storage when VMware has upgraded your vCloud Air environment to using the new Service Realm platform.

If VMware has not upgraded your customer environment and you are managing storage for your Dedicated Cloud or Virtual Private Cloud on the current vCloud Air platform, see Storage in vCloud Air in the vCloud Air User's Guide for Dedicated Cloud and Virtual Private Cloud

The new vCloud Air Landing page for your Service Realm displays all your account’s Organizations and Organization virtual data centers regardless of whether you have privileges to access them. Make sure that you have access privileges for the Organizations and Organization virtual data centers where you want to manage storage.

When configuring stores for your virtual data centers and virtual machines, you must be aware of the following limitations:

While the total subscribed storage can be fully allocated to one or more Virtual Data Centers, some storage is reserved for operational overhead, including swap files and catalogs. This prevents you from fully provisioning the storage allocation to virtual machine disks.

For further information, please review this Knowledge Base article: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2043173.

Customers can increase their virtual disk sizes when they purchase additional storage and not be limited by small LUN (datastore) sizes. However, the overall storage limit is confined by a 10TB LUN size.

VMware recommends that you limit your VMDK sizes to 70% of the largest backend LUN. This size limitation allows space for overhead and snapshots. Failure to allow space for overhead can cause a virtual machine to lock up. When you buy 2TB of storage, VMware provisions two 1TB LUNs for your account. Therefore, your VMDK size should not exceed 700GB because a VMDK must be on one LUN. However, when you purchase additional storage (for example, 6TB), VMware does not provision the additional storage using 1TB LUNs. In this case, VMware expands the two LUNs to be 2TB each, then 3TB each, 4TB each, etc., up to the maximum LUN size. Contact VMware support if you encounter issues with overall LUN capacity.