compatibility option for pool creation?

Developer discussions.

compatibility option for pool creation?

Postby RJVB » Fri Dec 21, 2018 2:46 am

One of the reasons that keep me interested in ZFS on Mac is that this is potentially the best Unix "exchange" filesystem that's supported on Linux and *BSD.

In that light it's a pity that both the Linux and Mac implementations now create new pools that won't mount R+W on the other platforms. It'd be nice if we didn't have to remember which pool features to disable on which platform when creating a new pool, but if instead there were an easy mnemonic option that takes care of that. Or simply support for a ~/.config/zpoolrc file where you can set properties you want set for any new pool you create?

Depending on the reception here I'll make the suggestion to the ZoL devs too :)
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Re: compatibility option for pool creation?

Postby lundman » Tue Dec 25, 2018 4:30 pm

There is a large discussion about this on the OpenZFS mailing list. I think we will soon see a "compat" pool create feature.

https://openzfs.topicbox.com/groups/dev ... e-proposal
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Re: compatibility option for pool creation?

Postby RJVB » Wed Dec 26, 2018 1:04 am

Yeah, I just saw mention of that discussion on IRC yesterday, I reckoned it had to be related.

I did notice though that the 4 pool properties introduced since the previous version I had installed (including the V2 space map feature) cannot be disabled when you create a new pool. I haven't yet had the occasion to check if the resulting pool I created can be imported under Linux or not.
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