Just some notes until I gather my thoughts.
| Disk | Description | Cost | Date Purchased | Speed |
| Earlier Boot SSD Drive on System | 5400 RPM Disk | $?? | ?? | 530 MB/sec |
| WD Red 5400 in RAID | 5400 RPM Disk | $?? | ?? | 150 MB/sec |
| Current Laptop | Internal SSD | $285 | August 2019 | 2350 MB/sec |
| Backup Drive | USB connected 4TB | $100 | January 2022 | 260 MB/sec |
4TB was not available way back when. Now it is the standard “any drive for $100 or so” drive. Speed taken from hdparm -t repeated five times.