Advanced Technology for Maximum Performance


Major Materials Cost Savings

Storage devices managed by WildFire's ESS linearization software are not just faster and more durable ... they are also less expensive to build.

Buying a full service all-Flash storage system is expensive. Prices frequently range from $3,000 to $5,000 per usable terabyte.  For instance, a 24 SSD Promise JBOD system with 3.84TB SSDs costs $177,000 for 46 to 84 terabytes of usable storage.

Knowledgeable buyers can build Enterprise grade all-Flash storage using generic software, choosing between parity RAID (RAID-5 and RAID-6) and a mirror (RAID-10) of some sort.

A generic RAID-10 system built with off-the-shelf materials will likely cost $400 to $600 per terabyte.  Write and read performance will be determined by the quantity of SSDs present and the performance properties of these.  Typically the 4KB write performance rate will be the tested performance of half of the array set.  Thus, a 10 SSD system with 11,000 IOs per second will have a performance rate of 55,000 4KB IOPS, and a 24 SSD system will have a performance level of 132,000 4KB IOPS.

A generic RAID-5 or RAID-6 system will typically cost $300 to $400 per usable terabyte.  However, write performance will be much slower than a RAID-10 system because any random write requires the read of all other SSDs in the same RAID-stripe.  Accordingly, a parity-based system normally writes no faster than the write speed of a single SSD.  Thus, in the example above, the write speed would not exceed 11,000 IOPS whether the array was composed of two or 24 SSDs.

Conversely, systems managed by ESS and BonFire cost less, with storage costs as low as $200 per usable terabytes because ESS-based solutions, with their linearization of all data, can deliver high-speed parity-RAID.  WildFire's write speed is the sum of the sequential write speeds of all the SSDs in the system.  For instance, the sequential speed of 12 SSDs with 520MB/sec of write performance is 6.24GB/sec, or 1.5 million 4KB random blocks per second - almost 20 times faster than the RAID-10 solution above..

The same technology which speeds up WildFire-managed SSDs also radically reduces write- and RAID-amplification.  The benefit of this varies with the SSD selected.  Enterprise grade SSDs get rid of amplification problems by providing very high levels of free space.  Read-intensive, commercial, and 4-bit QLC flash normally lack significant free space.  Accordingly, amplification can be extreme, on the order of 20:1 or even 30:1.   ESS solves the problem and reduces amplification to a typical level of 1.5:1, making these classes of media suitable as long-lived mass storage.

The bottom line in all of this is that ESS and BonFire give you the ability to use fewer SSDs, because you don't need RAID-10 for speed.  It also lets you use lower grades of SSD media by reducing the write amplification of these by more than an order of magnitude.

WildFire Storage:
Phone:   US toll free (888) 473-7866
+1 (610) 237-2000
fax +1 (610) 672-9549
© Copyright 2007-2018 EasyCo LLC - All Rights Reserved - EasyCo LLC dba WildFire Storage