BlueStore questions

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Hi all,

I have a few questions on using BlueStore.

With FileStore it is not uncommon to see 1 nvme device being used as the journal device for up to 12 OSDs.

Can an adequately sized nvme device also be used as the wal/db device for up to 12 OSDs?

Are there any rules of thumb for sizing wal/db?

Would love to hear some actual numbers from users. 

thx
Frank 


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