HDDs, SSDs and friends in the enterprise world

Table of contents

• Data, Storage and how to get from there to here
• Data Explosion
  • Data Need - ILM
  • Data - The Need for Speed
• The good ole' Hard Disk Drives
  • HDD Structure
  • The Rotating Nature Of HDDs
  • HDD - Sequential access patterns
  • HDD - Random access patterns
• Disk Interfaces
  • The IDE Interface
  • The SCSI Interface
  • The SATA Interface
  • The SAS Interface
• HDD - fighting for speed
  • HDD - Getting More Bandwidth
  • HDD - Getting More IOPS
• FLASH - Non-Volatile Memory
  • The Internal Mechanism Of NAND-FLASH
  • The Internal Mechanism Of an SSD
    • Endurance
    • Write Amplification
  • SSD And The HDD Interface Limitations
  • PCIe Interface For SSD
• SSD and Price fights
  • SSD and Price fights - Splitting Based On Applications
  • SSD and Price fights - Data Tiering
  • SSD and Price fights - Data Caching
    • Caching inside the storage system
    • Caching inside the host
• References

Originally written by guy keren