在备用节点上，可以访问共享的增强型并发卷组，但是只能采用被动只读模式。
On the standby node, it has access to the shared enhanced-concurrent volume group, but only in a passive, read-only mode.
在备用节点上，可以访问共享的增强型并发卷组，但是只能采用被动只读模式。
On the standby node, it has access to the shared enhanced-concurrent volume group, but only in a passive, read-only mode.
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