The launch of the new Series 7 from Adaptec consists of many firsts for the storage industry. The PM8015 allows for the industry's only PCIe 3.0 low-profile/MD2 form factor with 16 native ports and the only 24 native port full height solution. This is also the first set of publicly available controllers that will fully saturate the PCIe 3.0 bus, offering 6600MB/s or 6.44GB/s of throughput in addition to 450,000 4K IOPS.
The potential for large gains in density is probably one of the defining attributes of this generation of RAID controllers. These controllers can literally provide double the density of the competition. New approaches to power loss management and volume configuration are nice additions, but once again, we come back to the improvement in density. For applications with passive backplanes, these controllers can provide double the density. This can result in lower power consumption through the lack of both integrated and external expanders.
The typical power consumption of the controllers themselves is between 12 and 18 watts, dependent upon the port count of the controller utilized.
The only caveat is that in order to provide that density Adaptec has to make the jump to HD MiniSAS a year earlier than the competitors are. This can be a bit of a gamble, as this new type of cable is going to carry a price premium until fully adopted into the enterprise space. This will lead to higher cabling costs, but with such high-density gains, particularly in the smaller server racks, many will be willing to shoulder that price.
General availability for these controllers will come shortly and we look forward to a full product evaluation on our enterprise test bench soon. Stay tuned!
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