强健的安全和备份过程是强制性的，而且还要考虑供应商的业绩记录和历史。
Strong security and backup processes are mandatory, and you'll need to consider the provider's track record and history.
在准备验证环境之前，应该使用供应商最佳实践备份您要升级或更新的应用程序或组件。
Before getting ready to validate your environment, you should use vendor best practices for backing up the application or component you are upgrading or updating.
您想了解供应商的SLA条款和备份策略。
You want to know what the provider's SLA terms and backup policy are.
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