We put Western Digital's dreaded SMR Red drive to the test
![We put Western Digital's dreaded SMR Red drive to the test](https://cdn.arstechnica.net/wp-content/uploads/2020/06/ironwolf-vs-efax-800x600.jpg)
Western Digital's SMR disks won't work for ZFS, but they're okay for most NASes.
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One of my Hard disks failed and i found this on it : r/DataHoarder
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(Old Model) Seagate 4TB NAS HDD SATA 64MB Cache 3.5
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Testing WD Red 4TB SMR vs CMR HDDs in a ZFS NAS Array - Skip SMR
![](https://nascompares.com/wp-content/uploads/2022/11/Black-Friday-Deals-2022-NAS-UPGRADES-NASCompares.webp)
Black Friday 2022 NAS and Data Storage Deals – Synology, QNAP
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Western Digital Fesses Up: Some Red HDDs Use Slow SMR Tech Without
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Western Digital & Seagates Response to the Unlabeled SMR Drives
![](https://cdn.arstechnica.net/wp-content/uploads/2020/05/sth-raidz-rebuild.png)
We put Western Digital's dreaded SMR Red drive to the test
![](https://www.dolphindatalab.com/wp-content/uploads/2022/06/wd-smr-hdd-slow-fix.png)
How to Fix Western Digital SMR HDD Slow Issue - Dolphin Data Lab
![](https://nascompares.com/wp-content/uploads/2022/10/Synology-DS923-NAS-Drive-nascompares-news.webp)
Synology DS923+ NAS FINALLY Revealed – NAS Compares