fill a pointer struct with zero value.

io1类型的卷需要指定IOPS参数,最大不超过32000。这里根据aws网站的建议值进行设置 io2类型的卷需要指定IOPS参数,最大不超过64000。 GenDiskIops Base 100, 卷每增加2G。IOPS增加1。最多到3000 iops.

https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.RegionsAndAvailabilityZones.html.

* {"arn":"arn:aws:organizations::285906155448:account/o-vgh74bqhdw/285906155448","email":"[email protected]","id":"285906155448","joined_method":"INVITED","joined_timestamp":"2021-02-09T03:55:27.724000Z","name":"qiu jian","status":"ACTIVE"} */.

* { * Arn: "arn:aws:organizations::031871565791:policy/o-gn75phg8ge/service_control_policy/p-4l9recev", * AwsManaged: false, * Description: "Create Preventive SCP Guardrails", * Id: "p-4l9recev", * Name: "SCP-PREVENTIVE-GUARDRAILS", * Type: "SERVICE_CONTROL_POLICY" * } */.