Provide a local workspace with many small random reads and writes.
Prioritize low latency without mechanical head movement.
Which medium is generally most suitable?
An SSD has no mechanical seek and generally provides lower random-I/O latency than an HDD. Endurance, capacity, and interface also matter.
Detailed explanation
Correct. Flash storage avoids mechanical seek and is suited to low-latency random I/O.
Correct. Flash storage avoids mechanical seek and is suited to low-latency random I/O.
Incorrect. Rotational media and head movement increase random-access latency.
Incorrect. Rotational media and head movement increase random-access latency.
Incorrect. Optical media suits distribution and archival rather than frequent random writes.
Incorrect. Optical media suits distribution and archival rather than frequent random writes.
Incorrect. Tape is designed for sequential backup access.
Incorrect. Tape is designed for sequential backup access.
Try it yourself
An example you can run in a temporary verification environment.
printf '%s
' 'SSD: no mechanical seek' 'HDD: rotating media and head seek'Expected result
SSDとHDDのアクセス機構の違いKey points
- SSD has no mechanical seek
- HDD uses rotating media
- Consider endurance and cost
Notes
- Environment: 概念確認。性能値は製品と接続方式に依存
- Command output formatting can vary slightly by distribution or tool version.
- Run the example in a temporary directory or process when possible.
Foundation review
Read the scope first
Check whether the command acts on the current shell, a new process, an existing process, or a file.
Verify the observable result
Use the supplied command and compare the output with the expected result.