[ZFS] Metadata Allocation Classes

[Ben RUBSON]

> On 22 Nov 2018, Ben RUBSON wrote:
> 
> Hi,
> 
> Intel has pushed the "Metadata Allocation Classes" feature to ZFS on Linux.
> This allows to store metadata on a so called "special" VDEV, made of SSD for instance.
> 
> This looks really promising.
> I wrote a patch 2 years ago which pins metadata in L2ARC, at eviction time.
> This really helps with some specific workloads.
> But "Metadata Allocation Classes" should be one step further in terms of performance.
> 
> Simple question, do you plan to backport this feature to FreeBSD ?
> Or do you first wait for it to reach Illumos (does not seem to be there yet) ?
> 
> ZoL discussion : https://github.com/zfsonlinux/zfs/issues/3779
> ZoL PR : https://github.com/zfsonlinux/zfs/pull/5182

I answer to myself, well "The future of ZFS in FreeBSD" topic in this list does :-)

Ben