What are characteristics of SSD drive technology? (Select two.)
A.
Any SSD will immediately lose data when power is removed.
B.
SSD drives are recommended for storage array-tiring strategies
C.
SSD drives compress data natively via the drive interface with an embedded controller.
D.
SSD drives provide faster write performance by eliminating the need for raid calculations
E.
SSD drives manage wear leveling via the drive interface board and embedded controller.
Explanation:
Would go for B (design manual Rev 15.21 4-9) and E (design manual Rev 15.21 4-6)
0
0
correct
0
0
B AND E
Solid-state-drives (SSD)
Rev. 15.21 4 – 5
Designing HP SMB Storage Solutions
• Share the I/O interface technology developed for hard drives
• Use electronic interfaces compatible with traditional block (I/O) hard drives
• Include a controller that incorporates the electronics that bridge the NAND
memory components to the host computer. The controller is an embedded
processor that executes firmware-level code and is one of the most important
factors of SSD performance.
Some of the functions performed by the controller include:
Error checking and correction (ECC)
Wear leveling
Managed via the drive interface board and embedded controller
Bad block mapping
Read scrubbing and read disturb management
Read and write caching
Garbage collection
Encryption
• Ideal for mission-critical server applications, databases and online storage
• SMB and enterprise-level for high-performance workloads
• Disadvantage is a possible data loss in unpowered drives over longer term
• Indispensable for storage array tiering strategies
0
0
Since when an SSD drive is losing data when power is removed ???
0
0