Date Added: Jan 2010
The XP24000/XP20000 introduced a new storage allocation concept called Thin Provisioning (ThP). Thin provisioned storage allows the array administrator to pre-plan user capacity needs and allocate virtual storage based on the planned future capacity, but physically only consume the amount of disk space that the user is actually accessing. As a result, administrators no longer have to concern themselves with wasted storage - storage that has been allocated but is not currently in use by the users. This whitepaper provides a walk through on migrating from a legacy "Thick" provisioned LUN to a "Thin" provisioned LUN on the XP24000/XP20000 array.