表 9-2.机柜丢失保护条件 （续）

RAID 级别

机柜丢失保护条件

RAID 级别 1 确保镜像对中每个物理磁盘都位于不同的扩展柜中。从而可使磁

盘组中两个以上的物理磁盘均位于同一扩展柜中。

例如：如果要创建包含六个物理磁盘的磁盘组 （3 个镜像对），通 过指定位于不同扩展柜的每个镜像对中的物理磁盘，您能仅通过 两个扩展柜实现机柜丢失保护。例如：

•镜像对 1—机柜1插槽 1 中的物理磁盘和机柜2 插槽 1 中的物理磁盘。

•镜像对 2—机柜1插槽 2 中的物理磁盘和机柜2 插槽 2 中的物理磁盘。

•镜像对 3—机柜1插槽 3 中的物理磁盘和机柜2 插槽 3 中的物理磁盘。

由于 RAID 级别 1 需要至少两个物理磁盘，因此存储阵列拥有的扩 展柜少于两个时将无法实现机柜丢失保护。

RAID 级别 0 由于 RAID 级别 0 不存在一致性，因此无法实现机柜丢失保护。

主机到虚拟磁盘的映射

创建虚拟磁盘后，必须将其映射至连接至阵列的主机。 配置主机到虚拟磁盘映射的原则：

•存储阵列中的每个虚拟磁盘仅可映射到一个主机或主机组。

•存储 阵列中的控制器之间可共享主机到虚拟磁盘的映射。

•主机组或主机必须使用唯一的 LUN 访问虚拟磁盘。

•每台主机都有其专属的 LUN 地址空间。 MDSM 允许不同的主机或主 机组使用相同的 LUN 访问存储阵列中的虚拟磁盘。

•并非每个操作系统都具有相同的可用 LUN 号码。

•您可以在 AMW 的 Mappings （映射）选项卡中定义映射。请参阅 第 80 页上的 “使用映射选项卡”。

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配置：磁盘组和虚拟磁盘

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Dell MD3600f, MD3620F manual 主机到虚拟磁盘的映射, 110
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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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