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Hello this is general problem of alibaba. Basically I need to upgrade instance / datacenters that this support, but at the time of development this was not possible to retrive - I mean I have not been able to filter instances by IO optimized or UserData Supported.. I mean most of Asia based (Chiness) datacenters have this features. But they not implementing this outside of China. But I deside to leave non chinesse ddatacenters so users may find working combinations on their own or because I was expecting that they enable this features for their other datacenters in few months.
Hope I was clear about this.