Viewing general details for nodes: Panel help

Use the Viewing General Detail panel in the SAN Volume Controller Console to display specific details about the configuration of a selected node.

Attributes

The following attributes are displayed in the table:

ID

Displays the system-assigned ID for the node.

State

Displays the current state of the node. The following values are possible:

Adding: Indicates that the node has been added to the cluster but is not yet synchronized with the cluster state.
Deleting: Indicates that the cluster is in the process of deleting the node. Any VDisk-to-host mappings and Copy Services interactions are being deleted.
Flushing: Indicates that the node is clearing its cache.
Offline: Indicates that the node is not operational. The node is assigned to a cluster but is not available on the fibre-channel SAN fabric. Run the directed maintenance procedures to determine the problem.
Online: Indicates that the node is operational, is assigned to a cluster, and has access to the fibre-channel SAN fabric.
Unknown: Indicates that the node state cannot be determined. This is typically displayed when a node is added to the cluster.

WWNN

Displays the worldwide node name (WWNN) that is assigned to this node.

I/O Group ID

Displays the internal ID of the I/O group that this node belongs to. Either the ID or the I/O group name can be used in tasks that require an I/O group as an input.

I/O Group

Displays the name of the I/O group.

Configuration Node

Indicates if this node is the configuration node for the cluster. The following values are possible:

iSCSI Name

Displays the iSCSI qualified name (IQN) for the node. For SAN Volume Controller nodes this is always iqn.1986-03.com.ibm:2145.<cluster name>.<node name>, where <cluster name> and <node name> depend on the values configured for the cluster.

iSCSI Alias

Displays the alias name for the node which identifies it to the iSCSI-attached host. The alias name can consist of any printable ASCII character, but cannot begin or end with a space. An alias name cannot exceed 79 characters.

Hardware Model

Displays the model type of the hardware. The following values are possible:

CF2
8F2
8F4
8G4
Other

Uninterruptible Power Supply Serial Number

Displays the serial number of the uninterruptible power supply.

Uninterruptible Power Supply Unique ID

Displays the system-assigned ID of the uninterruptible power supply.

Failover Active

Indicates whether node port IP address failover is active for the node Ethernet port. Node port IP failover maintains consistent connection between the cluster and the iSCSI-attached host if the node which the host is attached to fails. The iSCSI hosts connect to SAN Volume Controller through the node port address for that node. If that node fails, the address becomes unavailable, and the host loses communication with SAN Volume Controller and access to data. To allow hosts to maintain access to data, the node port IP address for the failed node is transferred to the partner node. The partner node handles requests to both its own node port IP addresses and node port IP address for the failed node. This process is known as node port IP failover. In addition to the node port IP address, the iSCSI name for the node is also transferred to the partner node. When the node recovers, the node port IP address and the iSCSI name return back to the original node.

Node port IP failover only occurs if a node goes offline or is deleted from the cluster and does not occur if the Ethernet connection is lost to the port. Since an I/O group contains the maximum of two nodes in the I/O group, each node acts as the partner node to the other node in the same I/O group. Failover configuration is activated on the local node until the partner node comes back online and activates the settings.

The following values are possible:

Yes: Indicates that node port IP failover is active.
No: Indicates that node port IP failover is not active.

The following attributes are displayed for the when partner node is online:

Partner Node ID: Displays the internal ID for the other node that is in the I/O group to which this node belongs.
Partner Node Name: Displays the name of the partner node.
iSCSI Name: Displays the iSCSI qualified name (IQN) for the node. For SAN Volume Controller nodes this is always iqn.1986-03.com.ibm:2145.<cluster name>.<node name>, where <cluster name> and <node name> depend on the values configured for the cluster.
iSCSI Alias: Displays the alias name for the node which identifies it to the iSCSI-attached host. The alias name can consist of any printable ASCII character, but cannot begin or end with a space. An alias name cannot exceed 79 characters.

The following attributes are displayed for the failover node when failover is active. Failover occurs when one of the partner nodes is offline or does not exist in the I/O group.

Node Name: Displays the name of the failover node.
iSCSI Name: Displays the iSCSI qualified name (IQN) for the node. For SAN Volume Controller nodes this is always iqn.1986-03.com.ibm:2145.<cluster name>.<node name>, where <cluster name> and <node name> depend on the values configured for the cluster.
iSCSI Alias: Displays the alias name for the node which identifies it to the iSCSI-attached host. The alias name can consist of any printable ASCII character, but cannot begin or end with a space. An alias name cannot exceed 79 characters.

Actions

The following action is available:

Close: Click this button to exit this panel.