Re: Question if WAL/block.db partition will benefit us

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> That does not seem like a lot. Having SSD based metadata pools might
> reduce latency though.
>
So block.db and block.wal doesn't make sense? I would like to have a
consistent cluster.
In either case I would need to remove or add SSDs, because we currently
have this mixed.

It does waste a lot of space. But might be worth it if performance
> improves a lot. You might also be able to separate small objects from
> large objects based on placement targets / storage classes [1]. This
> would allow you to store small objects on SSD. Those might be more
> latency sensitive than large objects anyway?
>
> Gr. Stefan
>
> [1]: https://docs.ceph.com/en/latest/radosgw/placement/
>

Puh, large topic.
Would removing the smaller files from the spinning disks release enough
pressure from the flying heads to speed up large file uploads? Could be a
test, but I don't know if this would work as expected. I can imagine that
this leads to larger problems, when the SSD OSDs run out of space.
Also I would rather add more spinning disks because we also need a lot of
space.
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