Saturday, January 14, 2012

Storage Efficiency

Storage vendors are currently struggling with the impacts of a dramatic disk shortage, caused by flooding in Thailand, where both of the worlds enterprise drive manufactures are located.

One vendor, EMC has taken an interesting approach to reduce the requirements for hard disks. By making storage more efficient, through the use of automated tiering technology or EMC FAST, standing for Fully Automated Storage Tiering.

EMC FAST works by monitoring data access patterns, then intelligently relocating blocks of data every 24 hours.

The result, cold stale data is relocated to lower cost disk, such as 3TB NL-SAS, whilst active data is moved to higher performing disk like 10/15K SAS. Thereby reducing the traditional requirements for large amounts of high speed spindles to host core application data.

EMC's VNX series unified storage array requires 25% less raw capacity, than traditional storage arrays, making it simple to contain file and block data growth including; CIFS, Physical & Virtual Machines, Objects and Big Data.
EMC even goes as far as to guarantee it.

If for some reason, the VNX does not deliver on the 25%, then EMC will match the shortfall with additional storage.


Simple and efficient

Other vendors try to match EMC on storage efficiency, by altering their systems, turning off options, changing defaults, or tweaking configurations. But they can’t counter the EMC unified storage advantage.

The details

EMC's 25% efficiency guarantee applies to all EMC VNX series unified storage arrays:
  • Based on out-of-the-box best practices
  • No need to compromise availability or performance
  • No caveats on the types of data you use
  • No need to auto-delete snapshots to save space