|Thin provisioning (TP), a virtualized storage technology that creates an allocated amount of pooled disk space that apps share, is supported by most array vendors. One of the biggest advantages of TP is that it lets the storage admin increase capacity utilization and not overprovision storage.
But not all TP implementations are alike. Because of intense vendor marketing that emphasizes each company's "superior" implementation, it's difficult for a user to evaluate and compare products. Ashish Nadkarni, principal consultant at Framingham, MA-based GlassHouse Technologies, says users should consider the following when comparing TP offerings: