Adding new host

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Hi,

We have a live cluster with 8 OSD nodes all having 5-6 disks each.

We would like to add a new host and expand the cluster.

We have 4 pools
- 3 replicated pools with replication factor 5 and 3
- 1 erasure coded pool with k=5, m=3

So my concern is, is there any precautions that are needed to add the new host since the ec profile is 5+3.

And can we add multiple disks at the same time in the new host ? Or should it be 1 at a time ?



Karun 
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