WildFire ESS-Limited
WildFire ESS-Limited is a
variant of ESS which contains all the wear reduction
capabilities of ESS but with explicit limits on random write
speeds.
Full service ESS can deliver as many as 2 million 4KB random
writes a second and up to 11GB/sec of larger random writes
with 24 SSDs. This is far more performance than is
available through other products. For instance,
standard Linux SSD implementations cannot exceed 30,000 4KB
random write IOPS with parity RAID, and frequently do not
exceed 100,000 IOPS with RAID-10.
Similarly, most proprietary systems offer a basic
performance level of around 30,000 to 75,000 IOPS, and
charge a significant premium for larger systems. For
instance, one major proprietary solution provider charges
five times as much for 300,000 IOPS performance as it does
for 30,000 IOPS of throughput.
ESS-Limited is designed for OEMs and others who have their
own set of administrative tools, intend to build significant
numbers of storage devices or local mass storage systems,
and are willing to accept some performance restrictions in
order to significantly reduce licensing costs.
|
