Comment on TrueNAS Scale, hard disks, and pools

• bigredgiraffe@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Okay so the disks aren’t also on UPS? That might actually be even worse than the whole thing getting turned off, ZFS is definitely not meant to be run on removable disks like that.

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  • Flamekebab@piefed.social ⁨1⁩ ⁨day⁩ ago

    Haha, yeah. It does make me wonder whether I should bin the whole TrueNAS approach entirely. It seems like a tremendous faff when I could just have the files mirrored to another disk as a backup.

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    • 4am@lemm.ee ⁨1⁩ ⁨day⁩ ago

      If you shut down the computer gracefully first before you power the disks off of should be ok more often than not, but you really should try to have everything on the same system so this can all be coordinated by the OS and the hardware.

      As others have said, avoid powering the disks off before the OS has had a chance to shut down or your disks will NOT be in a recoverable state when everything comes back online.

      I’m not even sure the setup you are describing would benefit at all from a different storage method, even “regular” writes could be in memory or controller buffers. External drives are not meant to have their power cut.

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      • Flamekebab@piefed.social ⁨1⁩ ⁨day⁩ ago

        These are internal drives connected to a desktop PSU wired to a USB interface to connect to the laptop.

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