负载平衡

负载均衡策略用于确定将哪个路径用于处理 I/O。如果配置了混合主机接 口，则可通过设置负载均衡策略的多个选项来优化 I/O 性能。

您可以选择以下负载均衡策略之一以优化 I/O 性能：

•带子集的循环—带子集的循环 I/O 负载均衡策略会将 I/O 请求轮流路由 到每条可用的数据通路，这些通路指向拥有相关虚拟磁盘的 RAID 控 制器模块。对于 I/O 活动，此策略平等对待指向拥有相关虚拟磁盘的 RAID 控制器模块的所有路径。指向第二个 RAID 控制器模块的路径将 被忽略，直到所有权更改。循环策略的基本假设是所有数据通路是等 同的。如果支持混合主机，则数据通路可能具有不同的带宽或数据传 输速度。

•带子集的最少队列深度—带子集的最少队列深度策略也称为最少 I/O 或 最少请求策略。此策略将下一个 I/O 请求路由至具有最少待决 I/O 请求 排队的数据通路。对于此策略来说， I/O 请求仅仅是队列中的一个命 令。此策略不考虑命令的类型或与命令相关联的数据块数。带子集的最 少队列深度策略平等对待大数据块请求和小数据库请求。选定的数据通 路是拥有相关虚拟磁盘的 RAID 控制器模块的路径组中的路径之一。

•带子集的最少路径权重 （仅限 Windows 操作系统）—带子集的最少队 列深度策略也称为最少 I/O 或最少请求策略。此策略将下一个 I/O 请求 路由至具有最少待决 I/O 请求排队的数据通路。对于此策略来说， I/O 请求仅仅是队列中的一个命令。此策略不考虑命令的类型或与命令相 关联的数据块数。带子集的最少队列深度策略平等对待大数据块请求 和小数据库请求。选定的数据通路是拥有相关虚拟磁盘的 RAID 控制 器模块的路径组中的路径之一。

监视 MD3600f 系列系统性能

可使用性能监视器选择虚拟磁盘和 RAID 控制器模块来监视或更改轮询间 隔。在使用性能监视器时请牢记这些原则：

•如果在窗口打开时出现任何配置更改，则性能监视器不会动态更新其 显示内容。必须关闭并重新打开 Perfomance Monitor ( 性能监视器 ) 窗

口才能显示其更改。

•如果使用性能监视器来检索性能数据，则会影响存储阵列的正常性能， 这取决于设置的轮询间隔。

•如果监视的存储阵列以无响应状态开始或转换为该状态，则会出现一 个通知对话框。该对话框会告知您，性能监视器不能轮询存储阵列以 检索性能数据。

54

规划：MD3600f 系列存储阵列术语和概念

Page 53 Page 55
Page 54
Image 54
Dell MD3620F manual 负载平衡, 监视 MD3600f 系列系统性能
Page 53 Page 55

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.
Top Page Image Contents