Compellent Storage VirtualizationCompellent virtualizes enterprise storage at the disk level, creating a dynamic pool of shared storage resources available to all servers, all the time. With read/write operations spread across all drives, multiple requests can be processed in parallel, boosting system performance. Compellent Storage Virtualization allows users to create hundreds of virtual volumes in seconds to support any virtual server platform and optimize the placement of virtual applications. 
How to Increase Performance with Storage Virtualization • Create any size virtual volumes without allocating drives to specific servers or dealing with complicated capacity planning or performance tuning
• Present network storage to servers simply as disk capacity, regardless of tier, RAID level or server connectivity
• Automatically restripe data across all drives in the storage pool when adding more capacity
• Dynamically scale the storage pool and implement system upgrades without disruption
• Use virtual ports to increase port capacity, disk bandwidth, I/O connectivity and port failover 
Compellent’s Storage Virtualization is the perfect complement to any leading virtual server platform. Aggregating physical disks into logical virtual volumes removes the limitations inherent to physical drives. The result is a dynamic pool of storage resources shared by virtual machines (VMs). Storage is presented to VMs simply as capacity, regardless of disk type, RAID level or server connectivity 
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