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	<p>注意：本页面翻译的信息可能滞后，最新的信息请参看英文版的相关页面。</p>
	</div>
	<p>SCM 为 Ozone 集群提供了多种重要功能，包括：集群管理、证书管理、块管理和副本管理等。</p>



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	集群管理
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	SCM 负责创建一个 Ozone 集群，当通过 <kbd>init</kbd> 命令启动 SCM 时，SCM 会创建集群标识以及用于担任 CA 的根证书，SCM 负责集群中数据节点生命周期管理。


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	服务身份管理
	</h4>

	SCM 的 CA 负责向集群中的每个服务颁发身份证书，证书设施方便了网络层 mTLS 协议的启用，也为块 token 机制提供了支持。


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	<span class="glyphicon glyphicon-link"></span>

	副本管理
	</h4>

	SCM 会跟踪所有块副本的状态，如果检测到数据节点宕机或磁盘异常，SCM 命令其它节点生成丢失块的新副本，以此保证高可用。


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