Our friend, David Floyer, over at Wikibon has done an excellent job of putting a stake in the ground to define what makes a Hybrid Storage System.
Wikibon has analyzed the cost and performance of flash-first hybrid arrays compared with the traditional architectures. In high performance environments the hybrid approach is clearly superior, both in cost and performance. The chart below shows a high-level view of the data, and the strategic fit for Hybrid systems. For IO rates greater than 700 IOs per Terabyte, the hybrid approach is superior.
David also makes good points about a new differentiator Tegile has in all of our arrays: VM-Awareness:
Wikibon suggests that hybrid storage arrays have three main characteristics:
- The IO queues for each virtual machine are fully reflected and managed in both the hypervisor and the storage array, with a single point of control for any change of priority.
- All data is initially written to flash (flash-first).
- Virtual machine storage objects are mapped directly to objects held in the storage array.
All these characteristics are very important to high-performance virtual environments and lead to a significantly lower cost of storage and improved performance.
Thank you, Mr. Floyer, for a well thought out, well written post to help educate the market on this fast changing segment of the market.
Read the entire post here.