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HDD Storage Type Guidelines Print
November 2009

What type of hard disk should I use? This article provides a recommendation on what type of hard disk should be used for what applications. There are no hard demarcations i.e. SATA drives can be used for high-end applications but performance may suffer. Please use this table as a guideline only.

 
 Suggested Application


 Connection Type


 Rotational Speed

 High-end
 Transactional data   SAS  15k RPM
 - Databases
 - Exchange
 Mid-range    7.2k RPM
 Reference data  SATA
 Low-end  - File Storage
 - Archive data


 Vendor / Model
 Class
 Characteristics
 Seagate Cheetah 15K.7  Tier 1 SAS  SAS 15k RPM, high performance, 24x7
 Seagate Barracuda ES.2 (SS)  Tier 2 SAS  SAS 7.2k RPM, high capacity, 24x7
 Seagate Barracuda ES.2 (NS)  Nearline SATA  SATA 7.2k RPM, high capacity, 24x7
 Seagate Barracuda 7200.12 (AS)  SATA  SATA 7.2k RPM, high capacity