The following examples provide information about the general mapping formats:

On RHEL hosts, a partition node has the format /dev/mapper/mpath<x>p<y>, where <x> is the alphabetic number for the multipathing device, <y> is the partition number for this device.

On SLES 11.x hosts, a partition node has the format /dev/mapper/mpath<x>-part<y>, where <x> is letter(s) assigned to the multipathing device and <y> is the partition number.

On SLES 10.3 hosts, a partition node has the format /dev/mapper/mpath<x>_part<y>, where <x> is the letter(s) assigned to the multipathing device and <y> is the partition number.

NOTE: After creating a partition on a multipathing device, all I/O operations, including file system creation, raw I/O and file system I/O, must be done through the partition node, and not through the multipathing device nodes.

Create a File System on a Device Mapper Partition

Use the standard mkfs command to create the file system on the newly created Device Mapper partition

For example:

#mkfs –t <filesystem type> /dev/mapper/<partition node>

where <partition node> is the partition on which the file system is created.

Mount a Device Mapper Partition

Use the standard mount command to mount the Device Mapper partition, as shown below.

# mount /dev/mapper/<partition_node> <mounting_point>

Ready for Use

The newly created virtual disks created on the MD3600f Series array are now setup and ready to be used. Future reboots automatically finds multipathing devices along with their partitions.

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Configuration: Device Mapper Multipath for Linux

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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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