Jul 262013

A Deeper Dive into Solid State Storage
Yeah, there’s some hype out there about solid state storage (SSS). No, I take that back…there’s a TON of hype out there around solid state storage. Why? Well, let’s take a look at some of the benefits of solid state drives (SSD) and where they might be used:

  • The main, primary benefit of using SSD over a spinning disk (HDD) is direct access
  • SSD flash memory does not require seek time (HDD does), resulting in higher transaction rates (IOPS) than HDD
  • An example of SSD vs HDD in IOPS:
    * 100 to 200 IOPS for HDD vs. 5,000 to 10,000 IOPS for SSD
  • A flash disk (SSD) can provide 40x better IOPS than a spinning disk (HDD)
  • SSD performs typically performs better for random workloads than sequential workloads
  • SSD read performance will typically be better than the write performance
    * SSD read speeds are normally 2x that of its write speeds
  • The cost per performance for SSD is much better for SSD (though the cost per TB is much better for HDD)
  • Power consumption for SSD is much better:
    * An SSD might use 1 watt while a HDD might use 10 watts
    * The power performance of an SSD is typically 1000s of IOPS/Watt vs. the performance of an HDD with only 10s of IOPS/Watt

Dell EqualLogic’s Answer to Solid State Storage and SSD
Does EqualLogic do SSD…? Of course! Dell EqualLogic is still the leader in the native iSCSI SAN marketplace, and EqualLogic pricing will reveal that it can do SSD in either a full SSD or a hybrid SSD solution:

1 Gigabit Ethernet

  • EqualLogic PS6100S-4.8TB (24x200GB SSD drives)
  • EqualLogic PS6100S-9.6TB (24x400GB SSD drives)
  • EqualLogic PS6100XS-13TB (7x400GB SSD with 17x600GB 10K SAS drives)


  • EqualLogic PS6110S-4.8TB (24x200GB SSD drives)
  • EqualLogic PS6110S-9.6TB (24x400GB SSD drives)
  • EqualLogic PS6110XS-13TB (7x400GB SSD with 17x600GB 10K SAS drives)