If i have a tier ste on the the array and i change tier on a diskpool.
Whitch one does oci pick up ?
Do i need to set the tier on either on the whole array or on the diskpools, or can i have them both set?
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I believe the tier hierarcy is Array -> Stg pool -> vol. So if you set at tier at array level then Stg and vols will inherit this setting. But you are able to override the tier setting at either sub level if you have a need.