Essential guide to hybrid flash arrays
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In theory, yes. We had an array in our lab that we tried to add solid-state drives (SSDs) to, and of course, they weren't the right brand. Vendors have to qualify and test all of these drives, so not every drive will be compatible with every array.
If you have compatible drives for your array, you can definitely add SSDs to an array and see performance benefits.
There are a number of issues that you should consider with the DIY route. This approach may be appealing because shops can use existing technology. However, the lack of automated data migration between SSD and HDD tiers and performance limitations of storage controllers are drawbacks when compared with arrays designed around SSDs.
Related Q&A from Dennis Martin
Remote Direct Memory Access is a good way to reduce latency in flash environments and works with InfiniBand and some Ethernet connections.continue reading
Dennis Martin of Demartek discusses whether NAND flash wear-out is still a concern in this Expert Answer.continue reading
Dennis Martin of Demartek discusses differences between various PCIe solid-state cards available today in this Expert Answer.continue reading
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