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I'm starting to get concerned about the ZFS issue list, there are a ton of gotchas hiding in using OpenZFS that will cause data loss: * Swap on ZVOL (data loss
by nwmcsween 5y ago
I'm starting to get concerned about the ZFS issue list, there are a ton of gotchas hiding in using OpenZFS that will cause data loss:
* Swap on ZVOL (data loss)
* Hardlocking when removing ZIL (this has caused dataloss for us)
- michaelmrose 5y agoCan you please link me to the issue with swap on zvol causing data loss.
- nwmcsween 5y agohttps://github.com/openzfs/zfs/issues/7734 https://github.com/openzfs/zfs/issues/7734
- magicalhippo 5y ago> Hardlocking when removing ZIL You cannot remove the ZIL, it's an integral part of ZFS. I assume you mean a SLOG[1]. That said, do you have an issue link? I'm curious. I know people have had some issues with importing pools with a bad or missing SLOG device, though most couldn't be reproduced. [1]: https://www.ixsystems.com/blog/o-slog-not-slog-best-configure-zfs-intent-log/ https://www.ixsystems.com/blog/o-slog-not-slog-best-configur...
- nwmcsween 5y agoYes my mistake it was slog, this is easily reproducible w/ truenas, add cache, manually remove cache from cli, hardlock, there are multiple reports of this in the openzfs issue tracker
- magicalhippo 5y agoTook me a while to get the zil vs slog terminology to stick. I tried searching the bug tracker but no open issues came up, but I do run TrueNAS so that should be easy enough to test. Cheers!