•Host server — On a host server system, MDSM and the storage array communicate management requests and event information using
•Management station — On a management station, MDSM communicates with the storage array either through an Ethernet connection to the storage array management port or through an Ethernet connection to a host server. The Ethernet connection passes management information between the management station and the storage array connectivity.
Using MDSM, you can configure the physical disks in the storage array into logical components called disk groups or dynamic disk group and then divide the disk groups into virtual disks. Disk groups are created in the unconfigured capacity of a storage array. Virtual disks are created in the free capacity of a disk group.
Unconfigured capacity comprises physical disks not already assigned to a disk group. When a virtual disk is created using unconfigured capacity, a disk group or dynamic disk group is automatically created. If the only virtual disk in a disk group is deleted, the disk group is also deleted. Free capacity is space in a disk group that is not assigned to any virtual disk.
Data is written to the physical disks in the storage array using RAID technology. RAID levels define how data is written to physical disks. Different RAID levels offer different levels of accessibility, redundancy, and capacity. You can set a specified RAID level for each disk group and virtual disk on your storage array.
For more information about using RAID and managing data in your storage solution, see the Owner’s
Manual at dell.com/support/manuals.
Related Documentation
NOTE: For all PowerVault documentation, go to dell.com/support/manuals and enter the system Service Tag to get your system documentation.
NOTE: For all Dell OpenManage documents, go to dell.com/openmanagemanuals.
NOTE: For all storage controller documents, go to dell.com/storagecontrollermanuals .
You product documentation includes:
•Dell PowerVault MD3800f and MD3820f Storage Arrays Getting Started Guide — Provides an overview of system features, setting up your system, and technical specifications. This document is also shipped with your system.
•Dell PowerVault MD3800f and MD3820f Storage Arrays Owner’s Manual — Provides information about system features and describes how to troubleshoot the system and install or replace system components.
•Rack Installation Instructions — Describes how to install your system into a rack. This document is also shipped with your rack solution.
•Dell PowerVault MD Series Storage Arrays Administrator's Guide — Provides information about configuring and managing the system using the MDSM GUI.
•Dell PowerVault Modular Disk Storage Arrays CLI Guide — Provides information about configuring and managing the system using the MDSM CLI.
•Dell PowerVault MD3800f and MD3820f Storage Arrays Deployment Guide — Provides information about deploying the storage system in the SAN architecture.
•Dell PowerVault MD34/38 Series Support Matrix — Provides information about the software and hardware compatibility matrices for the storage array.
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