CompTIA Server+ (SK0-005)Server Hardware Installation and ManagementMedium
A server administrator is deploying a new server that requires high-speed, direct-attached storage for a local database. The server is equipped with a modern motherboard that has M.2 slots. Which storage technology would provide the fastest performance for this application?
- ANVMe SSD
- BSATA SSD
- CSAS HDD
- DRAID 10 using SATA HDDs
Show answer & explanationAnswer & explanation
Correct answer: A. NVMe SSD
NVMe (Non-Volatile Memory Express) SSDs utilize the PCIe bus, offering significantly higher throughput and lower latency compared to SATA or SAS interfaces, especially for SSDs. Given the requirement for 'high-speed, direct-attached storage' and the presence of 'M.2 slots' (which can support NVMe), NVMe SSDs are the optimal choice for the fastest performance for a local database.
Why the other options are wrong
- B. SATA SSDs are fast but significantly slower than NVMe SSDs due to the SATA interface bottleneck.
- C. SAS HDDs (Hard Disk Drives) are much slower than any SSD and not suitable for 'fastest performance'.
- D. RAID 10 with SATA HDDs would be much slower than any SSD solution, despite some redundancy and performance improvement over single HDDs.
NVMe (Non-Volatile Memory Express)
A communication interface specification for accessing non-volatile storage media (like SSDs) attached via a PCI Express (PCIe) bus, designed for high throughput and low latency.
- Utilizes PCIe lanes
- Significantly faster than SATA/SAS SSDs
- Designed specifically for SSDs
Memory trick: NVMe flies, SSD is fast, HDD is slow, Tape is for the past.