Can ZenFS support non-ZNS type SSDs？
benqwu opened this issue · 3 comments
benqwu commented
Can ZenFS support non-ZNS type SSDs, and what is the performance impact?
yhr commented
Yes, it can be supported, but one would have to implement it and benchmark
it to measure the benefits.
Implementing this interface for conventional drives(somehow faking zone
operations) could work:
https://github.com/westerndigitalcorporation/zenfs/blob/master/fs/zbdlib_zenfs.h
Write amp could potentially be reduced a bit (delta conventional file
systems), but probably the biggest advantage
would be faster synced writes. ZenFS outperforms ext4 and xfs for small
synchronized buffered(e.g. WAL) writes by about 2x.
…On Thu, Apr 11, 2024 at 8:50 AM benqwu ***@***.***> wrote:
Can ZenFS support non-ZNS type SSDs, and what is the performance impact?
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benqwu commented
Thank you for your reply. Does the ZenFS have a plan to support non-ZNS SSDs so that ZenFS can be applied to a wider range of scenarios?
yhr commented
I have no plans to implement support for conventional devices, but would of
course happily review any pull requests in this direction :)
Thanks for your interest!
…On Mon, Apr 15, 2024 at 3:52 AM benqwu ***@***.***> wrote:
Thank you for your reply. Does the ZenFS have a plan to support non-ZNS
SSDs so that ZenFS can be applied to a wider range of scenarios?
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