What is a characteristic of an enterprise flash drive?

A.
Uses semiconductor-based solid state media

B.
Performs data search and retrieval sequentially

C.
Performs rotational speed at more than 30000 rpm

D.
Writes once and reads many

Explanation:
Enterprise Flash Drives
Traditionally, high I/O requirements of an application were met by simply using more disks.
Availability of enterprise class flash drives (EFD) has changed the scenario.
Flash drives, also referred as solid state drives (SSDs), are new generation drives that deliver
ultra-high performance required by performance-sensitive applications. Flash drives use
semiconductor-based solid state memory (flash memory) to store and retrieve data. Unlike
conventional mechanical disk drives, flash drives contain no moving parts; therefore, they do not
have seek and rotational latencies. Flash drives deliver a high number of IOPS with very low
response times. Also, being a semiconductor-based device, flash drives consume less power,
compared to mechanical drives. Flash drives are especially suited for applications with small block
size and random-read workloads that require consistently low (less than 1 ms) response times.
Applications that need to process massive amounts of information quickly, such as currency
exchange, electronic trading systems, and real-time data feed processing, benefit from flash
drives.
Overall, flash drives provide better total cost of ownership (TCO) even though they cost more on
$/GB basis. By implementing flash drives, businesses can meet application performance
requirements with far fewer drives (approximately 20 to 30 times less number of drives compared
to conventional mechanical drives). This reduction not only provides savings in terms of drive cost,
but also translates to savings for power, cooling, and space consumption. Fewer numbers of
drives in the environment also means less cost for managing the storage.
EMC E10-001 Student Resource Guide. Module 2: Data Center Environment