[ceph-users] Bluestore OSD_DATA, WAL & DB

Jorge Pinilla López jorpilo at unizar.es
Fri Nov 3 02:08:45 PDT 2017

well I haven't found any recomendation either  but I think that
sometimes the SSD space is being wasted.

I was thinking about making an OSD from the rest of my SSD space, but it
wouldnt scale in case more speed is needed.

Other option I asked was to use bcache or a mix between bcache and small
DB partitions but I was only reply with corruption problems so I decided
not to do it.


I think a good idea would be to use the space needed to store the Hot DB
and the rest use it as a cache (at least a read cache)

I dont really know a lot about this topic but I think that maybe giving
50GB of a really expensive SSD is pointless with its only using 10GB.

El 02/11/2017 a las 21:45, Martin Overgaard Hansen escribió:

> Hi, it seems like I’m in the same boat as everyone else in
> this particular thread.
> I’m also unable to find any guidelines or recommendations regarding
> sizing of the wal and / or db.
> I want to bring this subject back in the light and hope someone can
> provide insight regarding the issue, thanks.  
> Best Regards,
> Martin Overgaard Hansen
> MultiHouse IT Partner A/S
> _______________________________________________
> ceph-users mailing list
> ceph-users at lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

*Jorge Pinilla López*
jorpilo at unizar.es
Estudiante de ingenieria informática
Becario del area de sistemas (SICUZ)
Universidad de Zaragoza
PGP-KeyID: A34331932EBC715A
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