Hi

i suggest you to read some base docu about that.

osd_tier_promote_max_bytes_sec = how much bytes per second are going on tier

ceph osd pool set ssd-pool target_max_bytes = maximum size in bytes on
this specific pool ( its like a quota )

-- 
Mit freundlichen Gruessen / Best regards

Oliver Dzombic
IP-Interactive

mailto:i...@ip-interactive.de

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Am 18.07.2016 um 11:14 schrieb m13913886...@yahoo.com:
> what is "osd_tier_promote_max_bytes_sec" in ceph.conf file  and command
> "ceph osd pool set ssd-pool target_max_bytes" are not the same ?
> 
> 
> On Monday, July 18, 2016 4:40 PM, Oliver Dzombic
> <i...@ip-interactive.de> wrote:
> 
> 
> Hi,
> 
> osd_tier_promote_max_bytes_sec
> 
> is your friend.
> 
> -- 
> Mit freundlichen Gruessen / Best regards
> 
> Oliver Dzombic
> IP-Interactive
> 
> mailto:i...@ip-interactive.de <mailto:i...@ip-interactive.de>
> 
> Anschrift:
> 
> IP Interactive UG ( haftungsbeschraenkt )
> Zum Sonnenberg 1-3
> 63571 Gelnhausen
> 
> HRB 93402 beim Amtsgericht Hanau
> Geschäftsführung: Oliver Dzombic
> 
> Steuer Nr.: 35 236 3622 1
> UST ID: DE274086107
> 
> 
> Am 18.07.2016 um 10:19 schrieb m13913886...@yahoo.com
> <mailto:m13913886...@yahoo.com>:
>> hello cepher!
>>    I have a problem like this :
>>    I want to config a cache tiering to my ceph with writeback mode.In
>> ceph-0.94,it runs ok. IO is First through hot-pool. then it flush to
>> cold-pool.
>>    But in ceph-10.2.2,it doesn't like tihs. IO wrties to  hot-pool and
>> cold-pool at the same time. I think it is be associated with "proxy".
>>    So how to config a cache tiering in ceph-10.2.2 to Improve IO
>> performance as much as possible ?
>>    how to use the proxy in cache tiering ?
> 
>>
>>
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>>
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