Dell EMC PowerVault MD 34XX/38XX Series Storage Arrays Administrator's Guide

Dell EMC PowerVault Modular Disk Storage Manager (MD Storage Manager) is comprised of multiple modules. One of these modules is the Host Context Agent, which is installed as part of the MD Storage Manager installation and runs continuously in the background.

If the Host Context Agent is running on a host, that host and the host ports connected from it to the storage array are automatically detected by the MD Storage Manager. The host ports are displayed in the Host Mappings tab in the Array Management Window (AMW). The host must be manually added under the Default Host Group in the Host Mappings tab.

Use the Define Host Wizard to define the hosts that access the virtual disks in the storage array. Defining a host is one of the steps required to let the storage array know which hosts are attached to it and to allow access to the virtual disks. For more information about defining the hosts, see Defining A Host.

To enable the host to write to the storage array, you must map the host to the virtual disk. This mapping grants a host or a host group access to a particular virtual disk or to several virtual disks in a storage array. You can define the mappings on the Host Mappings tab in the AMW.

On the Summary tab in the AMW, the Host Mappings area indicates how many hosts are configured to access the storage array. Click Configured Hosts in the Host Mappings area to see the names of the hosts.

A collection of elements, such as default host groups, hosts, and host ports, are displayed as nodes in the object tree on the left pane of the Host Mappings tab.