Virsto claims it can reduce VM disk consumption by as much as 90%. Virsto also reduces storage sprawl by preventing files from being needlessly duplicated. Other features include: Thin provisioning, snapshots, clones and live migration.
Virsto's first product, Virsto One, focuses on Microsoft's Hyper-V rather than VMware because VMware already has some functionality improving storage performance, says Virsto CEO Mark Davis. "Microsoft needs more help" because its virtualization technology is newer than VMware's, Davis says.
Virsto Software, a storage virtualization start-up has developed a Microsoft Hyper-V add-on that speeds up access to data in virtualized data centers