您可能需要定期测试远程复制中主虚拟磁盘和次虚拟磁盘的通信，特别是 重同步虚拟磁盘之后。有关测试通信的信息，请转至 Testing Communication between the Primary and Secondary Virtual Disk （测试主 和次虚拟磁盘之间的通信）。

正常同步的虚拟磁盘

在正常同步的远程复制中， RAID 控制器模块所有者管理从主虚拟磁盘到 次虚拟磁盘的数据转移。在正常的远程复制中，出现这些事件：

1主虚拟磁盘从主机中接收到一个写请求。

2存储阵列上的 RAID 控制器模块所有者将有关写操作的信息记录到存 储阵列的复制存储库虚拟磁盘中。

3RAID 控制器模块所有者将数据写入主虚拟磁盘。

4RAID 控制器模块所有者启动数据转移操作，将数据转移至次存储阵列 上的次虚拟磁盘中。

主和次虚拟磁盘之间的通信可以暂停或成为未同步。如果主和次虚拟磁盘 之间的通信中断：

1复制对的状态更改成 Unsynchronized （未同步）。

2存储阵列显示 Needs Attention （需要注意）状态。

3数据写入到主虚拟磁盘上。

4写入到主虚拟磁盘的请求被记录。

5RAID 控制器模块所有者向发送写请求的主机发送一个 I/O 完成消息。 尽管主机能继续向主虚拟磁盘发送写请求，次虚拟磁盘上没有发生数 据转移。次虚拟磁盘的写入暂停，主虚拟磁盘和次虚拟磁盘之间的通 信有待恢复。

当主虚拟磁盘和次虚拟磁盘之间恢复连接，复制对准备重同步。

注：当主虚拟磁盘和次虚拟磁盘重同步，只有通信中断后主虚拟磁盘上改 变的数据被转移至次虚拟磁盘。

小心：您应该意识到主存储阵列和次存储阵列间重同步启动后，如果通信 中断，可能出现数据损失。新数据可能与次虚拟磁盘上的旧数据混合，使得 数据在灾难恢复的情况下不可用。

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配置：高级功能——远程复制

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Dell MD3600f, MD3620F manual 正常同步的虚拟磁盘, 176
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MD3620F, MD3600f specifications

Dell's MD3620F and MD3600F storage arrays are designed for businesses seeking dependable, high-performance storage solutions tailored to meet the demands of modern data management. These models offer a blend of scalability, efficiency, and advanced features, making them well-suited for a range of applications, from virtual environments to critical database operations.

One of the primary features of the MD3620F and MD3600F is their support for a hybrid storage architecture. This approach allows organizations to combine flash storage with traditional hard disk drives (HDDs) to optimize performance and cost. The MD3620F focuses heavily on all-flash configurations, delivering exceptional speed and lower latency, ideal for I/O-intensive workloads.

Scalability is another hallmark of these storage solutions. The MD3600F allows users to scale up to 120 drives, providing robust capacity to meet growing data needs. The MD3620F is engineered for environments where data availability and speed are paramount, with support for high IOPS (Input/Output Operations Per Second) and consistent performance under stress.

In terms of data management, both systems integrate with Dell’s proprietary software, which enhances operational efficiency through features like automated tiering. This technology optimizes data placement between different storage types based on access frequency, ensuring that hot data is readily available while reducing costs associated with less critical data.

Reliability is crucial for businesses that depend on their storage systems. The MD3620F and MD3600F come equipped with advanced data protection mechanisms, such as RAID support, which safeguards against data loss, and snapshot capabilities that provide point-in-time copies of data. Moreover, these solutions include hot-swappable components, ensuring minimal downtime for maintenance and repairs.

Connectivity is also a strong suit of these storage arrays. They support multiple connectivity options, including SAS and iSCSI, allowing for flexible integration into existing IT infrastructures. This adaptability enhances their appeal to a wide range of enterprise environments.

In summary, the Dell MD3620F and MD3600F stand out as robust storage solutions with a combination of hybrid and all-flash configurations, scalability, advanced data management tools, and enhanced reliability features. These characteristics make them ideal for organizations looking to enhance their data storage capabilities while maintaining high performance and efficiency.
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