要将本地驱动器或设备列入黑名单：

1运行 multipath -l命令以确定本地驱动器或设备 WWID （全球标 识符）或供应商 / 型号字符串。

2按照以下说明编辑 /etc/multipath.conf 文件： blacklist {

wwid drive_wwid

…

}

或

blacklist { device {

vendor vendor_string model model_string

};

注：RedHat 版本 6.0 和 6.1 用户必须通过运行 #dracut -force命 令重建 initramfs 根文件映像，以包含更新的配置文件。

3重新引导主机。

有关特殊分区的重要信息

在将 Device Mapper 用于 MD3600f 系列阵列时，所有物理磁盘都分配了 一个磁盘设备节点。其中包括用于 MD3600f 系列阵列的带内管理的特殊 设备类型，其名为 Access Disk 或 Universal Xport 设备。

小心：特定命令 （例如 lsscsi）可显示 Universal Xport 设备的一个或多个实 例。不得以任何方式访问、安装或使用这些设备节点。否则会导致与存储阵 列的通信中断，并可能导致存储阵列严重受损，甚至可能导致无法访问存储 在阵列上的数据。

只能安装使用上面给出的命令创建的多路径设备节点和分区节点，或通过 主机系统或其用户以任意方式访问这些节点。

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配置：Linux 的 Device Mapper 多路径

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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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