同 oracle 免费 vps, 正在考虑 升级到 付费账户 PAYG, 因为据说 付费账户的 免费资源 保持免费的同时还不会被回收 : You can keep idle compute instances from being stopped by converting your account to Pay As You Go (PAYG). With PAYG, you will not be charged as long as your usage for all OCI resources remains within the Always Free limits.