虚拟磁盘操作

磁条宽度或深度与实施分拆的阵列中涉及的磁盘数目相关。例如，实施磁盘分拆且包含四个磁盘的磁盘组的磁条宽度为四。

注：尽管磁盘分拆可实现出色的性能，但分拆本身并不提供数据冗余。

虚拟磁盘初始化

必须初始化每个虚拟磁盘。初始化可在前台或后台完成。在每个 RAID 控制器模块上最多可同时初始化四个虚拟磁盘。

后台初始化

在允许主机服务器具有对虚拟磁盘的完整访问权限的情况下，如果创建了虚拟磁盘以建立奇偶校验，则存储阵列会执行后台初始化。后台初始化不能在 RAID 0 虚拟磁盘上运行。后台初始化速率由 MDSM 控制。要更改后台初始化的速率，则必须停止所有现有后台初始化。自动重新启动后台初始化时会实施速率更改。

前台初始化

存储阵列支持虚拟磁盘的前台初始化。在前台初始化期间会阻止所有对虚拟磁盘的访问。在前台初始化期间，会将零 (0x00) 写入虚拟磁盘的每个扇区。可在前台初始化完成之后使用虚拟磁盘。

一致性检查

一致性检查可验证冗余阵列（RAID 级别 1、 5、 6 和 10）中的数据的正确性。例如，在具有奇偶校验的系统中，检查一致性涉及计算物理磁盘上的数据，并将结果与奇偶校验物理磁盘的内容比较。

一致性检查与后台初始化相似。区别在于后台初始化不能手动启动或停止，而一致性检查则可以。

注：建议在冗余阵列上每月至少运行一次数据一致性检查。由此可进行检测以及自动替换不可读取的扇区。在重建故障的物理磁盘的过程中查找到不可读取的扇区是一个严重的问题，因为系统没有冗余来恢复数据。

介质验证

存储阵列的另一项后台任务是对磁盘组中的所有已配置的物理磁盘执行介质验证。存储阵列使用 “读取”操作在虚拟磁盘中已配置的空间上，以及为元数据保留的空间上执行验证。

规划：MD3600f 系列存储阵列术语和概念

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 MD3600f, MD3620F manual 虚拟磁盘操作

Models: MD3620F MD3600f