4 ms·

wait what? Can you do that - do you mean with both operating systems live?

jpgvm 9y ago
I believe he means dual-boot. Thus only one would be live at a time.
georgyo 9y ago
It is unlikely that you could install Windows on anything but NTFS. That doesn't mean you can't put your home directory on some other filesystem. Still, there is a fair amount of fragmentation in the ZFS world. It's possible that it will work fine (provided you got all the feature flags to match), but I am very skeptical that being able to mount in both will happen any time soon.
- nailer 9y ago
  > It is unlikely that you could install Windows on anything but NTFS. That doesn't mean you can't put your home directory on some other filesystem. Even Microsoft's own https://docs.microsoft.com/en-us/windows-server/storage/refs/refs-overview https://docs.microsoft.com/en-us/windows-server/storage/refs... can't be used as a boot drive currently.
exikyut 9y ago
Most definitely no. You'd still need to go for SMB or NFS for that. If this is possible I would consider it one of the most impressive things I'd ever seen.
- Filligree 9y ago
  ZFS supports connecting a pool to multiple computers at once, but only by way of locking the pool as a whole, and as others have pointed out it's unlikely to work even then. There's too much feature divergence. NFS is what you're "supposed" to use.
  - exikyut 9y ago
    Hah. ZFS really does have every single almost-reasonable feature baked into the design :) Problem with NFS is that it's really glitchy. For example I cannot disconnect my laptop's (higher-power) USB Wi-Fi dongle when I want to move around, because the PHY disappearing from under my NFS mount produces a kworker that consumes 100% CPU. The good news: I found a Red Hat bugzilla thread with repro info that perfectly matched what I was seeing, which identified the root cause and generated an upstream kernel patch that completely eliminated the problem. This all happened a couple years ago, for kernel 3.8 or so. The bad news: I'm using kernel 4.1.6. (I'll upgrade eventually, and see if the problem has conveniently disappeared. If it hasn't, I'll make the effort to switch to SMB. I'll also see what happens if I trigger this bug on a kernel with NFS compiled as a module at some point... >:D)
    - _joel 9y ago
      There's also interesting technologies that use ZFS as a base layer too such as MarFS which effectively provides network based object storage (or lustre etc) - https://www.usenix.org/system/files/login/articles/login_spring17_07_inman.pdf https://www.usenix.org/system/files/login/articles/login_spr...
    - the8472 9y ago
      > ZFS really does have every single almost-reasonable feature baked into the design :) Except some of the nice features btrfs has. Like almost arbitrary online restriping; on-demand deduplication, defragmentation and compression of existing files; reflink copy; nocow-flag, ...
- j_s 9y ago
  Also: advanced/expensive iSCSI options (simplest: read-only) https://social.technet.microsoft.com/Forums/en-US/21889ca0-2736-49d5-b38f-772bc93cbcc9/accessing-a-lun-for-read-only-purposes-from-multiple-servers-2008-r2?forum=winserverfiles https://social.technet.microsoft.com/Forums/en-US/21889ca0-2...
takeda 9y ago
I have feeling he just means for the data. ZFS doesn't allow two systems to use it at the same time (unless it is shared through NFS or similar) and booting Windows from ZFS would be another challenge (I bet much more difficult one). Currently there's no good FS that can work together with Windows and Linux/Unix. I mean the one that works on both would be ExFAT but its age is showing up. I currently found a workaround to have FreeNAS installed on VirtualBox and then share the volume through Samba, it works, but it is hacky. A native solution would be far better.

I believe he means dual-boot. Thus only one would be live at a time.

It is unlikely that you could install Windows on anything but NTFS. That doesn't mean you can't put your home directory on some other filesystem. Still, there is a fair amount of fragmentation in the ZFS world. It's possible that it will work fine (provided you got all the feature flags to match), but I am very skeptical that being able to mount in both will happen any time soon.

nailer 9y ago
> It is unlikely that you could install Windows on anything but NTFS. That doesn't mean you can't put your home directory on some other filesystem. Even Microsoft's own https://docs.microsoft.com/en-us/windows-server/storage/refs/refs-overview https://docs.microsoft.com/en-us/windows-server/storage/refs... can't be used as a boot drive currently.

exikyut 9y ago

Most definitely no. You'd still need to go for SMB or NFS for that. If this is possible I would consider it one of the most impressive things I'd ever seen.

Filligree 9y ago
ZFS supports connecting a pool to multiple computers at once, but only by way of locking the pool as a whole, and as others have pointed out it's unlikely to work even then. There's too much feature divergence. NFS is what you're "supposed" to use.
- exikyut 9y ago
  Hah. ZFS really does have every single almost-reasonable feature baked into the design :) Problem with NFS is that it's really glitchy. For example I cannot disconnect my laptop's (higher-power) USB Wi-Fi dongle when I want to move around, because the PHY disappearing from under my NFS mount produces a kworker that consumes 100% CPU. The good news: I found a Red Hat bugzilla thread with repro info that perfectly matched what I was seeing, which identified the root cause and generated an upstream kernel patch that completely eliminated the problem. This all happened a couple years ago, for kernel 3.8 or so. The bad news: I'm using kernel 4.1.6. (I'll upgrade eventually, and see if the problem has conveniently disappeared. If it hasn't, I'll make the effort to switch to SMB. I'll also see what happens if I trigger this bug on a kernel with NFS compiled as a module at some point... >:D)
  - _joel 9y ago
    There's also interesting technologies that use ZFS as a base layer too such as MarFS which effectively provides network based object storage (or lustre etc) - https://www.usenix.org/system/files/login/articles/login_spring17_07_inman.pdf https://www.usenix.org/system/files/login/articles/login_spr...
  - the8472 9y ago
    > ZFS really does have every single almost-reasonable feature baked into the design :) Except some of the nice features btrfs has. Like almost arbitrary online restriping; on-demand deduplication, defragmentation and compression of existing files; reflink copy; nocow-flag, ...
j_s 9y ago
Also: advanced/expensive iSCSI options (simplest: read-only) https://social.technet.microsoft.com/Forums/en-US/21889ca0-2736-49d5-b38f-772bc93cbcc9/accessing-a-lun-for-read-only-purposes-from-multiple-servers-2008-r2?forum=winserverfiles https://social.technet.microsoft.com/Forums/en-US/21889ca0-2...

takeda 9y ago

I have feeling he just means for the data. ZFS doesn't allow two systems to use it at the same time (unless it is shared through NFS or similar) and booting Windows from ZFS would be another challenge (I bet much more difficult one). Currently there's no good FS that can work together with Windows and Linux/Unix. I mean the one that works on both would be ExFAT but its age is showing up. I currently found a workaround to have FreeNAS installed on VirtualBox and then share the volume through Samba, it works, but it is hacky. A native solution would be far better.