配置：高级功能-快照虚拟磁盘, 127 | Dell MD3620F, MD3600f specification

配置：高级功能—快照虚拟磁盘

注：如果您已订购该功能，则会收到 Dell PowerVault MD 存储阵列附带的高级功能激活卡。请按照此卡中的说明获取密钥文件并启用该功能。

注：快照功能允许每个 LUN 最多同时存在 16 个快照，每个阵列最多同时存

在 256 个快照。

快照虚拟磁盘是存储阵列中虚拟磁盘的时间点映像。它并非包含原始数据副本的实际虚拟磁盘；而是对特定时间虚拟磁盘上所包含的数据进行引用。快照虚拟磁盘在逻辑上相当于完整的物理副本。但是，创建快照虚拟磁盘比创建物理副本要快得多，而占用的磁盘空间更少。

快照所基于的虚拟磁盘称为源虚拟磁盘，它必须是存储阵列中的标准虚拟磁盘。通常，您会创建快照以使应用程序（例如备份应用程序）可以在源虚拟磁盘保持联机和可访问状态时访问快照并读取数据。

注：创建虚拟磁盘快照时，在源虚拟磁盘上不允许进行 I/O 请求。

创建快照虚拟磁盘后，会自动创建包括元数据和写入时复制数据的快照库虚拟磁盘。唯一存储在快照库虚拟磁盘中的数据是自快照时起发生更改的数据。

快照库虚拟磁盘创建后，对源虚拟磁盘的 I/O 写入请求将恢复。但在修改源虚拟磁盘上的数据块之前，应将块中要修改的内容复制到快照库虚拟磁盘中妥善保存。由于快照库虚拟磁盘存储这些数据块中原始数据的副本，因此对这些数据块的其它更改将仅写入源虚拟磁盘。由于存储在快照库虚拟磁盘上的数据块只是那些自快照时起发生更改的数据块，因此快照库比完整的物理副本占用的磁盘空间更少。

创建快照虚拟磁盘时，可指定其位置、容量、计划和其他参数。不需要快照虚拟磁盘时，可将其禁用或删除。如果禁用快照虚拟磁盘，则下次执行备份时可以重新创建并重新使用该快照虚拟磁盘。有关详情，请参阅

第 142 页上的“重新创建快照虚拟磁盘”。如果删除快照虚拟磁盘，则也会删除关联的快照库虚拟磁盘。

注：删除快照不会影响源虚拟磁盘上的数据。

注：以下有关主机准备的章节还适用于通过 CLI 接口使用快照功能的情况。

配置：高级功能—快照虚拟磁盘

127 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.

Dell MD3620F, MD3600f manual 配置：高级功能-快照虚拟磁盘, 127

Models: MD3620F MD3600f

配置：高级功能—快照虚拟磁盘

127

MD3620F, MD3600f specifications