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Scripted Detection of SMR Drives

Scripted Detection of SMR Drives 0.5

Western Digital Drives - The Preferred Drives of FreeNAS and TrueNAS CORE
SMR technology is a timebomb waiting to go off in a ZFS file system. This quote from Slashdot...
At absolute best, SMR disks underperform significantly in comparison to CMR disks; at their worst, they can fall flat on their face so badly that they may be mistakenly detected as failed hardware.
Want to know more? Start with this community thread Update: WD Red SMR Drive Compatibility with ZFS

TrueCommand has a built-in check for known WD SMR drives on connected TrueNAS servers. However, if you don't use TrueCommand, you can still use this bash script to help you identify SMR drives. The script doesn't limit checks just to the WD NAS range of drives (RED), but extends this to any WD SMR drive listed in its database (BLUE, BLACK, etc.).

The latest version identifies known Seagate, Toshiba and WD `Ultrastar` (formerly HGST) SMR drives as well.

As the database of SMR drives is updated whenever a new SMR drive is identified, always download and run the latest version of this script when checking your TrueNAS drives.
Author
Basil Hendroff
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More resources from Basil Hendroff

Latest updates

  1. Now checking portable/external SMR drives

    The script database has been expanded to include a broad range of portable/external SMR drives...
  2. Now detecting HGST 'Ultrastar' SMR drives

    Hitachi Global Storage Technology (HGST) branded products, in particular Ultrastar, are now...
  3. Now detecting Toshiba SMR drives

    The database has been expanded to include known Toshiba SMR drives. The script now checks for...
  4. Now detecting Seagate SMR drives

    The database has been expanded to include known Seagate SMR drives. The script now checks for...
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