NexGen intros hybrid storage system
The hybrid system is designed to manage the input-output bottlenecks inherent in virtualised workloads and uses three levels of storage - a DRAM tier, a PCI flash solid state drive (SSD), and 7 200 RPM hard disk drives, the company said.
Search Virtual Storage says the n5 operating system enables what the vendor calls performance QoS to let customers provision performance in the same way they would provision capacity.
Its Dynamic Data Placement functionality migrates data across volumes to maintain QoS for virtual machine storage. It also uses a staged data reduplication process it calls Phased Data Reduction.
An n5 system includes two 640 TB PCI solid-state storage cards from Fusion-io, 48GB of RAM and 32TB of SAS drives. The 3U iSCSI SAN unit consists of active-active storage processors and either 16 Gigabit Ethernet (GbE) or four 10GbE ports.
The n5 has a recommended price of $88 000. The vendor offers optional 640GB SSD performance packs and 32TB SAS capacity packs.
Virtualisation Review states that according to NexGen, when combined, “PCI solid state and Phased Data Reduction enable NexGen n5 to deliver up to 76 times higher VM density than a typical disk drive deployment, resulting in up to 90% storage operating expense savings.”
Phased Data Reduction includes multiple phases leveraging advanced QoS capabilities so application performance is never impacted. In addition, it applies to all tiers - not just solid state - to deliver 58% lower $/GB without decreasing performance.
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