SMR And CMR Hard Drives
| Topic | Source |
|---|---|
| 🖥️ Tech | CMR vs SMR Hard Drives in Network Attached Storage (NAS) T Buffalo Americas |
| NAS Festplatten mit SMR oder CMR ? Ein Überblick im Jahr 2021 |
Use CMR drives for your NAS because it works better for a RAID configuration.
When deciding for hard drives for your NAS system, you might come across the terms SMR and CMR.
Those are different types of recording technologies used by hard drives.
Conventional Magnetic Recording (CMR) puts the data on the drive side-by-side, while Shingled Magnetic Recording (SMR) uses the fact, that write tracks are wider than read tracks and writes data sequentially on the track, so that they partially overlap.
For your NAS configuration, you should use CMR drives because they are not optimal if you go for a RAID setup.
Since WD does a mediocre job at telling you which drives of the red series use CMR and which use SMR, here is a handy overview.