All;

Based on the PG Calculator, on the Ceph website, I have this list of pools to 
pre-create for my Object Gateway:
.rgw.root
default.rgw.control
default.rgw.data.root
default.rgw.gc
default.rgw.log
default.rgw.intent-log
default.rgw.meta
default.rgw.usage
default.rgw.users.keys
default.rgw.users.email
default.rgw.users.uid
default.rgw.buckets.extra
default.rgw.buckets.index
default.rgw.buckets.data

I have a limited amount of SSDs, and I plan to create rules which limit pools 
to either HDD or SSD.  My HDDs have their block.db on NVMe devices.

I intend to use the SSDs primarily to back RBD for ISCSi, to support 
virtualization, but I'm not opposed to using some of the space to speed up RGW.

Which pool(s) would have the most impact on the performance of RGW to have on 
SSDs?

Thank you,

Dominic L. Hilsbos, MBA 
Director - Information Technology 
Perform Air International Inc.
dhils...@performair.com 
www.PerformAir.com



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