IP ports

The following information is shown for each IP port:

Acknowledged

Shows whether a user marked the status of an IP port as acknowledged. An acknowledged status indicates that the status was reviewed and is either resolved or can be ignored. An acknowledged status is not used when the status of related, higher-level resources is determined.

For example, if an IP port has an error status, the related storage system also shows an error condition. If the error status of the IP port is acknowledged, it changes to Error-Acknowledged. This acknowledged status is then treated as normal, and is used in evaluating the overall condition of the storage system. In this case, if the other internal resources of the storage system are also normal, the storage system condition is considered normal.

Duplex

The node is either in full-duplex state or half-duplex state. In full-duplex state, the ports on the node can send and receive data at the same time. In half-duplex state, the ports can send data when they are not receiving data. If the node is offline, no information is shown.

Failover

Shows whether the port is failed over to a different node.

Host Attach

Shows whether the port is configured to attach to hosts.

IP Address

Shows the IP addresses for IP ports that are configured for management, and IP addresses for iSCSI ports. Both IPv4 and IPv6 addresses are shown.

IQN

The iSCSI qualified name of the port.

Management

Shows whether the port is configured for management commands, or whether it is used only for management commands.

MTU

The maximum transmission unit that is available on the link between the port and the node.

Remote Partnership

Shows the status of the IP replication if the port is used for replication. The standby status indicates that the port is assigned to a copy group, but is not active.

Speed (Gbps)

The negotiated speed of the link between the port and the node.

Status

Shows the configuration status and the link state of an IP port. Use the status to determine the condition of the port, and if any actions must be taken. For example, if an IP port has an unconfigured status you might want to investigate why no iSCSI address is configured for the port. Also, if an IP port has an inactive status you might want to investigate why the port link is not active.

Storage Attach

Shows whether the port is configured to attach to storage.

Information about IQN Performance

Use the IQN Performance tab to view the performance of iSCSI qualified IP Ports at the node level. You can use metrics such as transfer size, replication latency, replication data rate, and compressed data rate on charts to visualize and complete the following tasks:

• Quick start your network planning by understanding how much total IP workload is being done between the storage systems in an IP replication relationship
• Troubleshoot IP replication by investigating latency and re-transmissions
• Compare the performance of nodes and quickly spot anomalies when they occur

IP Replication Transfer Size

Average number of mebibytes that are transferred by the IP partnership driver since the last statistics collection period.

IP Replication Latency

Average round-trip time for the IP partnership link since the last statistics collection period.

IP Replication-to-Remote Node Data Rate

Average number of mebibytes per second that are transferred to other nodes in other clusters by the IP partnership driver.

IP Replication Compressed Data Rate

Average number of mebibytes per second that are transmitted after any compression (if active).

Port performance

Use the Port performance tab to view the new port level metrics. From IBM Storage FlashSystem firmware 9.1.2.0 or higher, new port level metrics will be populated. For IBM Storage FlashSystem firmware below 9.1.2.0, existing node level metrics will be populated.