Re: Antw: Re: Best practices for extending a ceph cluster with minimal client impact data movement

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Hi,

<SNIP>
>>> Now, add the OSDs to the cluster, but NOT to the CRUSHMap.
>>>
>>> When all the OSDs are online, inject a new CRUSHMap where you add the new 
>>> OSDs to the data placement.
>>>
>>> $ ceph osd setcrushmap -i <new crushmap>
>>>
>>> The OSDs will now start to migrate data, but this is throttled by the max 
>>> recovery and backfill settings.
</SNIP>

I was wondering how exactly you accomplish that?
Can you do this with a "ceph-deploy create" with "noin" or "noup" flags
set, or does one need to follow the manual steps of adding an osd?

r,
Sam
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