IP ports
View information about IP ports to monitor the health and status of the IP ports, and to determine whether the ports are used for hosts, storage, or management. You can view information about IP ports on nodes on block storage systems that run IBM Storage Virtualize, such as IBM Storage FlashSystem family, SAN Volume Controller, and the IBM Storwize family.
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 the status of an IP port is Error, then the status of the related storage system is also Error. If the Error status of the IP port is acknowledged, then its status is not used to determine the overall status of the storage system. In this case, if the other internal resources of the storage system are Normal, then the status of the storage system is also 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).