CompTIA Tech+ (FC0-U71)IT Concepts and TerminologyHard
A technician is evaluating different storage technologies for a database server that requires extremely high input/output operations per second (IOPS) and low latency for small data blocks. Which of the following storage types would BEST meet these requirements?
- ANVMe Solid State Drive (SSD)
- BSATA Hard Disk Drive (HDD)
- CExternal USB Hard Drive
- DSATA Solid State Drive (SSD)
Show answer & explanationAnswer & explanation
Correct answer: A. NVMe Solid State Drive (SSD)
NVMe (Non-Volatile Memory Express) SSDs utilize the PCIe interface, offering significantly higher bandwidth and lower latency compared to SATA SSDs, which are limited by the SATA interface. This makes NVMe the best choice for applications demanding extremely high IOPS and low latency like database servers.
Why the other options are wrong
- B. HDDs are mechanical and have very low IOPS and high latency compared to SSDs.
- C. External USB hard drives add overhead and are generally slower than internal drives, making them unsuitable for high-performance server roles.
- D. SATA SSDs are faster than HDDs but are limited by the SATA interface's bandwidth and higher latency compared to NVMe.
NVMe (Non-Volatile Memory Express)
A communication interface and protocol specifically designed for SSDs to take full advantage of the high speeds offered by PCIe.
- Uses PCIe lanes for direct CPU access.
- Offers significantly higher throughput and lower latency than SATA.
- Ideal for high-performance computing, gaming, and enterprise applications.
Memory trick: NVMe is the fastest lane for your data train.