Re: cache tiering deprecated in RHCS 2.0

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Hello,

On Mon, 24 Oct 2016 11:49:15 +0200 Dietmar Rieder wrote:

> On 10/24/2016 03:10 AM, Christian Balzer wrote:
> 
> [...]
> > There are several items here and I very much would welcome a response from
> > a Ceph/RH representative.
> > 
> > 1. Is that depreciation only in regards to RHCS, as Nick seems to hope? 
> > Because I very much doubt that, why develop code you just "removed" from
> > your milk cow?
> > 
> > 2. Is that the same kind of depreciation as with the format 1 RBD images,
> > as in, will there be a 5 year window where this functionality is NOT
> > removed from the code base and a clear, seamless and non-disruptive
> > upgrade path?
> > 
> 
> Let me add one more point:
> 
> How will this affect situations in which one has cephfs on EC pools
> (which demand a cache tier in front)?
> 
> 
Read the very recent "Does anyone know why cephfs do not support EC pool?"
thread.

Clearly _that_ part requiring cache-tiers is going to be addressed/removed
with the L or K release.

Christian
-- 
Christian Balzer        Network/Systems Engineer                
chibi@xxxxxxx   	Global OnLine Japan/Rakuten Communications
http://www.gol.com/
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