Deployment Guide

3. Confirm that you have met the listed prerequisites, then click Next.
4. Type a hostname in the Host Name field.
5. Using the information from step 3 of Attach a Linux host with FC HBAs to the storage system on page 50 to identify the
correct initiators, select the FC initiators for the host you are configuring, then click Next.
6. Group hosts together with other hosts.
a. For cluster configurations, group hosts together so that all hosts within the group share the same storage.
● If this host is the first host in the cluster, select Create a new host group, then provide a name and click Next.
● If this host is being added to a host group that exists, select Add to existing host group. Select the group from the
drop-down list, then click Next.
NOTE: The host must be mapped with the same access, port, and LUN settings to the same volumes or volume
groups as every other initiator in the host group.
b. For stand-alone hosts, select the Do not group this host option, then click Next.
7. On the Attach Volumes page, specify the name, size, and pool for each volume, and click Next.
To add a volume, click Add Row. To remove a volume, click Remove.
NOTE: Dell EMC recommends that you update the name with the hostname to better identify the volumes.
8. On the Summary page, review the host configuration settings, and click Configure Host.
If the host is successfully configured, a Success dialog box is displayed
9. Click Yes to return to the Introduction page of the wizard, or click No to close the wizard.
Enable and configure DM Multipath on Linux hosts
Perform the following steps to enable and configure DM multipath on the Linux host:
NOTE:
Safeguard and block internal server disk drives from multipath configuration files. These steps are meant as a basic
setup to enable DM Multipath to the storage system. It is assumed that DM Multipath packages are installed.
1. Run the multipath –t command to list the DM Multipath status.
2. If no configuration exists, use the information that is listed from running the command in step 1 to copy a default template to
the directory /etc.
3. If the DM multipath kernel driver is not loaded:
a. Run the systemctl enable multipathd command to enable the service to run automatically.
b. Run the systemctl start multipathd command to start the service.
4. Run the multipath command to load storage devices along with the configuration file.
5. Run the multipath –l command to list the Dell EMC PowerVault ME4 Series storage devices as configured under DM
Multipath.
Create a Linux file system on the volumes
Perform the following steps to create and mount an XFS file system:
1. From the multipath -l command output, identify the device multipath to target when creating a file system.
In this example, the first time that multipath is configured, the first device is /dev/mapper/mpatha and it corresponds to
sg block devices /dev/sdb and /dev/sdd.
NOTE:
Run the lsscsi command to list all SCSI devices from the Controller/Target/Bus/LUN map. This command
also identifies block devices per controller.
2. Run the mkfs.xfs /dev/mapper/mpatha command to create an xfs type file system.
3. Run the mkdir /mnt/VolA command to create a mount point for this file system with a referenced name, such as VolA.
4. Run themount /dev/mapper/mpatha /mnt/VolA command to mount the file system.
5. Begin using the file system as any other directory to host applications or file services.
6. Repeat steps 1–5 for each provisioned volume in PowerVault Manager. For example, the device /dev/mapper/mpathb
corresponds to sg block devices /dev/sdc and /dev/sde .
Perform host setup
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