Deployment Guide

For SLES 12
1. From the server terminal or console, use the yast command to access YaST Control Center.
2. Select Network Service > iSCSI Initiator.
3. On the Service tab, select When Booting.
4. Select the Connected Targets tab.
5. Select Add. The iSCSI Initiator Discovery screen displays.
6. Using the Example worksheet for single host server with dual port iSCSI NICs you created earlier, enter the IP address for
port A0 in the IP Address field, then click Next. For example: 172.1.100.128.
7. Select Connect.
8. On iSCSI Initiator Discovery screen, select the next adapter and then select Connect.
9. When prompted, select Continue to bypass the warning message, “Warning target with TargetName is already connected”.
10. Select Startup to Automatic, then click Next.
11. Repeat steps 2-10 for all remaining adapters.
12. Once the targets are connected, click Next > Quit to exit YaST.
13. Reboot the host to ensure that all targets are automatically connected.
Register the Linux host with iSCSI network adapters and create volumes
1. Log in to the PowerVault Manager.
2. Access the Host Setup wizard:
● From the Welcome screen, click Host Setup.
● From the Home topic, click Action > Host Setup.
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 Configure the iSCSI initiators to connect to the storage system on page 53, select the iSCSI
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 the Linux host with iSCSI network
adapters
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 currently exists, use the command information displayed in step 1 to copy a default template to the
directory /etc.
3. If the DM multipath kernel driver is not loaded:
54
Perform host setup