Messages in this thread | | | Subject | Re: [RFC] dm-bow working prototype | From | Wols Lists <> | Date | Thu, 25 Oct 2018 22:15:39 +0100 |
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On 25/10/18 19:13, Paul Lawrence wrote: >> I have some questions about dm-bow: >> – How file system agnostic this feature is planned to be? While it is >> designed with ext4 in mind, is it going to work when used over other >> file systems, like FAT or BTRFS for example?
> So long as the file system supports fstrim, it should work. If the file > system creates a lot of churn say by running garbage collection, I'd not > recommend it. And I really don't see the use case if the file system has > any sort of snapshot capability - that will always be a superior > solution to a block level one IMO.
Sorry for being dense, but why is this posted to linux-raid, then? Raid does not support fstrim, and is filesystem-agnostic.
I can imagine people here being interested, but it feels to me as though your functionality is completely orthogonal to raid. Sorry.
Cheers, Wol
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