Conversation

Notices

1. Embed this notice
   Miakoda (hellomiakoda@pdx.social)'s status on Sunday, 05-Apr-2026 08:01:28 JST Miakoda

   I just had an idea, and I have no idea if this is technologically possible...
   RAID 1. It makes 2 drives that are identical. Why not a version of RAID 1 that will stop writing to that second drive, allow you to make a drive image of it while booted to to that array, and after will resync the RAID array? That would be useful AF!

   • Embed this notice
     Miakoda (hellomiakoda@pdx.social)'s status on Sunday, 05-Apr-2026 10:24:32 JST Miakoda

     in reply to

     • antsu

     @antsu See, the drive image is different than a snapshot. 1 - doesn't require being a certain filesystem. 2 - It's the whole thing, all of it, without much exception.

   • Embed this notice
     antsu (antsu@p.antsu.net)'s status on Sunday, 05-Apr-2026 10:24:33 JST antsu

     in reply to

     @hellomiakoda What you are describing are filesystem snapshots, except these are done at the block level, not with whole physical devices. Filesystems like ZFS and BTRFS, and logical partition management systems like LVM can all do this, even with a single disk. And yes, it's extremely useful.

   • Embed this notice
     Miakoda (hellomiakoda@pdx.social)'s status on Sunday, 05-Apr-2026 10:26:49 JST Miakoda

     in reply to

     • antsu

     @antsu Also... my GOD do I have a seething hatred of BTRFS.
     I used it. All of them went corrupt unreasonably easily (and I'm not including any data lost or corrupted by hardware issues). EXT4, and it's predessors, I haven't lost data to a non-hardware filesystem failure since 2009. I mostly stick to EXT4 because if it's track record. There's a few specific use cases I use something else.