With respect to the StoreVirtual OS, it has come to our attention that setting some of the volume creation properties may slow down the operation significantly, specifically AdaptiveOptimization (AO). AO defaults to ‘true’ if you don’t specify the value on a create, and that is the most efficient way to create a volume. If you pass in “false” or “true” for AO, it will result in an update operation following the create operation to set this value, so it is best to not specify the value and let it default to “true”. There are really no disadvantages to doing this. If the SAN would actually have tiered storage and the volume was residing on the tiered storage, then the flag would allow the volume to auto-tier, otherwise it means nothing.
Fix proposed to branch: master /review. openstack. org/78055
Review: https:/