Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Storage comparison
| Tier | Type of storage | Purpose |
|---|---|---|
| Tier 1 | SSD/flash drives | Highest performance |
| Tier 2 | 15 k rpm hard drives | Balance of performance/capacity |
| Archive Tier 3 | 7.2 k/10 k rpm hard drives | High capacity/low performance |
SSD: Solid state drive
