在虚拟网络存储系统中通常包含各种异构的存储设备节点…
There are usually lots of heterogeneous storage nodes in the virtual network storage system.
这说明了EVMS遵循的一个重要原则：它只为它在系统上找到的最终(而不是临时)存储对象创建设备节点。
This demonstrates an important principle that EVMS follows: it will only create device nodes for the final (not intermediate) storage objects that it finds on your system.
复制存储设备的一个关键因素是节点之间数据同步的方法是否高效。
A key aspect of a replicated storage device is an efficient method for synchronizing data between nodes.
尽管EVMS可以看到系统上所有的存储资源，但它可能不会为它找到的所有资源都创建 /dev/evms/设备节点项。
While EVMS can see all the storage resources on your system, it may not create /dev/evms/ device node entries for all of the resources it finds.
每个节点集群都必须有通用的存储设备可用，或者是通过StorageAreaNet work (SAN)，或者是通过sas子系统。
Each node cluster must have common storage devices available, either through the storage Area Network (SAN) or via SAS subsystems.
这允许存储节点复制数据(当发现一个设备出现故障时)。
This allows the storage nodes to replicate data (when a device is found to have failed).
这允许存储节点复制数据(当发现一个设备出现故障时)。
This allows the storage nodes to replicate data (when a device is found to have failed).
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