[PVE-User] Ceph Cache Tiering

Eneko Lacunza elacunza at binovo.es
Tue Oct 11 10:39:18 CEST 2016

El 10/10/16 a las 23:24, Lindsay Mathieson escribió:
> On 11/10/2016 2:05 AM, Eneko Lacunza wrote:
>> And there are known limits/problems with ext4 for example, and seems 
>> that also apply to zfsonlinux
> No they do not.
I linked the bugreport, not that I care really :)
>> Anyway it seems they're getting rid of the filesystem in the near 
>> future with bluestore
> yes, and this I think is a bad idea. They are dropping the decades of 
> development on linux hardware control to roll their own low level 
> filesystem layer. They are developing a case of NIH syndrome. I don't 
> think it will bode well.
They're not developing a new filesystem (that is the point after all), 
and yes, it performs much better. :-) Also take into account that some 
parts of bluestore are pre-existing tech (the DB thing)

But I understand your position, it will need time to stabilize; it's 
some time that they're working on it and seems that LTS version after 
Krakken will use bluestore by default; as Proxmox usually lags a bit 
behind LTS versions, we'll know by other users if it is stable enough 
when we can use it in Proxmox Ceph Server.


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