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Manual Chapter: Managing Clusters
Manual Chapter
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The VIPRIONTM system is based on the concept of clusters within a VIPRION system chassis. A cluster is a set of slots with blades in them. The blades in a cluster work together as one powerful VIPRION system to process network traffic. Blades in a cluster not only share the overall workload, but can also mirror each others connections so that if a blade is taken out of service or becomes unavailable for some reason, any in-process connections remain intact.
Before a VIPRION system can process network traffic, you need to configure the cluster. To ensure that this task is simple and straightforward, the VIPRION system includes both a set of cluster management screens within the Configuration utility, and a set of cluster-relevant commands within the bigpipe utility. With these screens and commands, you can:
As previously mentioned, you can access the Configuration utility on the VIPRION system using a special cluster IP address. After accessing the Configuration utility, you can navigate to the Cluster screen and see the properties of the default cluster. You can also see the properties of the slots and blades that represent the cluster members.
Using the Configuration utility, you can view the properties of a cluster, and list the cluster members and their attributes. Table 3.1 describes the specific cluster properties that you can view.
Displays the version of the BIG-IP® software that is running on the cluster.
The Cluster screen also lists the members of the cluster and information about those members. The information associated with each cluster member includes:
Status
The Status column indicates whether the cluster member is available or unavailable.
Slot
The Slot column indicates the number of the slot. You can click this number to display the properties of that cluster member.
Blade serial number
The Blade Serial Number column displays the serial number for the blade currently in that slot.
Enabled
The Enabled column indicates whether that cluster member is currently enabled.
Primary
The Primary column indicates whether that cluster member is currently the primary slot.
2.
On the Main tab of the navigation pane, expand System, and click Clusters.
The Cluster screen opens, showing the properties of the cluster, as well as listing the cluster members.
When you view the Cluster screen to display the list of cluster members, you can click a slot number and display the properties of that slot. Table 3.2 describes the properties of cluster member that you can view.
On the Cluster screen, you can not only display cluster and cluster member properties, but you can also enable or disable a cluster member. You do this using the Enable or Disable/Yield button.
1.
On the Main tab of the navigation pane, expand System, and click Clusters.
The Cluster screen opens, showing the properties of the cluster, as well as listing the cluster members.
2.
Locate the cluster member you want to enable or disable, and to the left of the Status icon, check the Select box.
3.
Click Enable or Disable/Yield.
In addition to displaying cluster and cluster member properties, and enabling and disabling cluster members, you can change the cluster IP address of the cluster, and define or change management IP addresses for the cluster members.
F5 Networks strongly recommends that you define a management IP address for each slot. By doing so, you ensure that you can access any blade in the cluster if access through the cluster IP address is unsuccessful.
Important: All management IP addresses for the individual cluster members (slots) must be on the same network as the cluster IP address. Also, the gateway and netmask for the cluster IP address become the default values for the gateway and netmask for each individual management IP address.
Table 3.3 describes the settings you can configure.
Specifies the IP address that you want to assign to the cluster. This IP address is used to access the Configuration utility, as well as to function as a cluster identifier for the peer cluster in a redundant system configuration.
1.
On the Main tab of the navigation pane, expand System, and click Clusters.
The Cluster screen opens, showing the properties of the cluster, as well as listing the cluster members.
2.
On the menu bar, click Cluster IP Addresses.
The Cluster IP Address screen opens.
4.
Click Update.
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