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8.6. SCSI Fence Device Configuration Procedure

This section provides the procedure for configuring SCSI persistent reservations as a fencing mechanism for each node of cluster scsiclust.
Use the following procedure to configure the HP iLO management board as the fence device for node clusternode1.example.com using Conga:
  1. As an administrator of luci Select the cluster tab. This displays the Choose a cluster to administer screen.
  2. From the Choose a cluster to administer screen, you should see the previously configured cluster scsiclust displayed, along with the nodes that make up the cluster. Click on clusternode1.example.com. This displays the configuration screen for node clusternode1.example.com.
  3. At the Main Fencing Method display, click Add a fence device to this level. This causes a dropdown menu to display.
  4. From the dropdown menu, under Create a new Fence Device, select SCS fencing. This displays a fence device configuration menu.
  5. For Name, enter scsifence.
  6. For Node name, enter node1.
  7. Click Update main fence properties. This causes a confirmation screen to be displayed.
  8. On the confirmation screen, click OK. After the fence device has been added, a progress page is displayed after which the display returns to the configuration page for clusternode1.example.com in cluster scsiclust.
After configuring a SCSI fence device for clusternode1.example.com, use the following procedure to configure a SCSI fence device for clusternode2.example.com.
  1. From the configuration page for clusternode1.example.com, a menu appears on the left of the screen for cluster scsiclust. Select the node clusternode2.example.com. The configuration page for clusternode2.example.com appears, with no fence device configured.
  2. At the Main Fencing Method display, click Add a fence device to this level. This causes a dropdown manu to display.
  3. From the dropdown menu, under Use an existing Fence Device, you should see scsifence (SCSI Reservation), which you defined for clusternode1.example.com. Select this existing device, which displays a fence device configuration menu.
  4. For Node Name, enter node2.
  5. Click Update main fence properties. This causes a confirmation screen to be displayed.
  6. On the confirmation screen, click OK. After the fence device has been added, a progress page is displayed after which the display returns to the configuration page for clusternode2.example.com in cluster scsiclust.
After configuring scsifence as the fencing device for clusternode2.example.com, select node clusternode3.example.com from the menu on the left side of the page and configure a SCSI fence device for that node using the same procedure as you did to configure the fence devices for clusternode2.example.com. For clusternode3.example.com , use the existing fence method scsifence as the name of the fencing method and node3 as the host name.
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