Thin Provisioning 2.0 defers the actual allocation of storage for volumes, increasing the overall utilization of the SAN, thereby
reducing the storage acquisition costs up front and over time.
All SAN/iQ features leverage Thin Provisioning 2.0, ensuring that the storage capacity in the SAN is perpetually optimized. For
instance, SAN/iQ Snapshots and Remote Copies are always thin provisioned. If you do want to specify a size for a particular
volume, you can toggle it from thin provisioned to full provisioned (and vice-versa) without any interruption to volume availability.
THIN PROVISIONING 2.0
Most provisioning models call for pre-allocation of storage space on
the SAN, placing the provisioning burden on the SAN administrator.
SAN vendors generally require you to predict how much space you will
need for volumes, snapshots and remote copies in the future, and
what your expected growth rate will be. It's not surprising that the
odds of making an accurate guess are long, so administrators
frequently over-allocate and over-spend to ensure they won't run out
of space. Worse yet, if you do over-allocate storage, it is nearly
impossible to reclaim that unused space.
SAN/iQ takes the guesswork out of storage allocation. The software
manages all the storage space underneath a given volume, allocating
space only as data is written to that volume. Easy-to-read charts and
alerts keep you apprised of volume utilization levels, letting you know
when your cluster is approaching its storage capacity limit. This unique
feature allows you to purchase storage capacity when you need it and
not months or years ahead of time.