Components of Disk Drive

Components of Disk Drive are 

   

•         Platter and Read/Write Head
•         HAD
•         Power Connectors
•         Interface
•         Controller Board

Components of Disk Drive

Storage Options in Data Center

•      Magnetic Tape

4  Low cost solution for long term data storage

Ø  Preferred option for backup destination in the past

4  Limitations

Ø  Sequential data access

Ø  Single application access at a time

Ø  Physical wear and tear

Ø  Storage/retrieval overheads

•      Optical discs

4  Popularly used as distribution medium in small, single-user computing environments

4  Limited in capacity and speed

4  Write once and read many (WORM): CD-ROM, DVD-ROM

4  Other variations: CD-RW, Blu-ray discs

•      Disk drive

4  Most popular storage medium

4  Large storage capacity

4  Random read/write access

•      Flash drives

4  Uses semiconductor media

4  Provide high performance and low power consumption