创建虚拟磁盘备份

仅当虚拟磁盘备份处于 In Progress （正在进行）或 Pending （挂起）状态 时，参与制作虚拟磁盘备份的源虚拟磁盘才可用于读取 I/O 活动。完成虚 拟磁盘备份之后便会批准写入请求。如果已使用日志文件系统格式化源虚 拟磁盘，则存储阵列可能会拒绝所有向源虚拟磁盘发出读取请求的尝试， 并可能会显示错误信息。日志文件系统驱动程序会在其尝试发出读取请求 之前发出写入请求。存储阵列会拒绝写入请求，且由于已拒绝写入请求， 则可能不会发出读取请求。此情况可能导致显示错误信息，表明源虚拟磁 盘具有写保护。

要防止发生此问题，请勿在虚拟磁盘备份处于 In Progress （正在进行）状 态时，尝试访问参与制作虚拟磁盘备份的源虚拟磁盘。此外，请确保在完 成虚拟磁盘备份之后，已禁用目标虚拟磁盘的 Read-Only（只读）属性， 以防止显示错误信息。

虚拟磁盘备份高级功能包括：

•Create Copy Wizard （创建备份向导），可帮助创建虚拟磁盘备份

•Copy Manager （备份管理器），可在创建虚拟磁盘备份后对其进行监

测

开始之前

如果存在与目标虚拟磁盘关联的快照虚拟磁盘，则虚拟磁盘备份会使这些 快照虚拟磁盘都失效。若选择快照虚拟磁盘的源虚拟磁盘，则在可将其选 作目标虚拟磁盘之前，必须禁用与其关联的所有快照虚拟磁盘。否则源虚 拟磁盘将无法用作目标虚拟磁盘。

虚拟磁盘备份覆盖目标虚拟磁盘上的数据，并自动使目标虚拟磁盘对主机 为只读。

如果存在 16 个状态为 In Progress （正在进行）的虚拟磁盘备份，则随后 的所有虚拟磁盘备份的状态都为 Pending （挂起），该状态会一直保持到

16个虚拟磁盘中的某一备份完成。

虚拟磁盘备份和修改操作

如果正在源虚拟磁盘或目标虚拟磁盘上进行修改操作，并且虚拟磁盘备份的 状态为 In Progress （正在进行）、 Pending （挂起）或 Failed （故障），则 不会发生虚拟磁盘备份。若已创建虚拟磁盘备份，而且正在源虚拟磁盘或目

配置：高级功能—虚拟磁盘备份

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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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