Since Hewlett-Packard acquired LeftHand Networks in 2008,it has continued to develop LeftHand's complete line of software-based iSCSI storage under the HP LeftHand P4000-series moniker.Based on the feature-rich SAN/iQ 9.5 software platform,the currently available P4000 G2 series includes a range of different physical form factors based on HP's ProLiant server line,as well as the virtualized P4000 VSA(Virtual SAN Appliance),which runs on VMware vSphere or Microsoft Hyper-V.
At its heart,the P4000 VSA is simply a virtualized(and thus hardware agnostic)version of the same SAN/iQ software that powers its physical brethren.Though the virtualized version comes with notable scalability limitations,it offers a great deal of flexibility in configuring storage either in concert with physical P4000-series SANs or on its own as a purely virtual SAN.
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