# CMR vs SMR for TrueNAS: Drive Rules and Buying Guide

> Use verified CMR NAS or enterprise drives for TrueNAS pools. WD Red Plus, WD Red Pro, IronWolf, IronWolf Pro, Toshiba N300 and verified CMR Exos capacities all belong on the shortlist.

This context describes the Cloudzat canonical page at https://cloudzat.com/cmr-vs-smr-for-truenas/. Current or last-verified Amazon price and image status belongs on the canonical page and is intentionally not frozen here.

## Primary source
- [CMR vs SMR for TrueNAS: Drive Rules and Buying Guide](https://cloudzat.com/cmr-vs-smr-for-truenas/index.md): Clean Markdown version of the full Cloudzat guidance.

## Related Cloudzat guidance
- [CMR/SMR hard-drive checker](https://cloudzat.com/cmr-smr-hard-drive-checker/)
- [Best CMR hard drives](https://cloudzat.com/best-cmr-hard-drives/)
- [Best CMR hard drives for NAS](https://cloudzat.com/best-cmr-hard-drives-for-nas/)
- [CMR vs SMR for NAS](https://cloudzat.com/cmr-vs-smr-for-nas/)
- [CMR vs SMR for RAID](https://cloudzat.com/cmr-vs-smr-for-raid/)
- [CMR vs SMR for ZFS](https://cloudzat.com/cmr-vs-smr-for-zfs/)