Monitoring AFM and AFM DR using GUI

The Files > Active File Management page in the IBM Spectrum Scale™ provides an easy way to monitor the performance, health status, and configuration aspects of the AFM and AFM DR relationships in the IBM Spectrum Scale cluster. It also provides details of the gateway nodes that are part of the AFM or AFM DR relationships.

The following options are available to monitor AFM and AFM DR relationships and gateway nodes:
  1. A quick view that gives the details of top relationships between cache and home sites in an AFM or AFM DR relationship. It also provides performance of gateway nodes by used memory and number of queued messages. The graphs that are displayed in the quick view are refreshed regularly. The refresh intervals are depended on the selected time frame. The following list shows the refresh intervals corresponding to each time frame:
    • Every minute for the 5 minutes time frame
    • Every 15 minutes for the 1 hour time frame
    • Every 6 hours for the 24 hours time frame
    • Every two days for the 7 days time frame
    • Every seven days for the 30 days time frame
    • Every four months for the 365 days time frame
  2. Different performance metrics and configuration details in the tabular format. The following tables are available:
    Cache
    Provides information about configuration, health, and performance of the AFM feature that is configured for data caching and replication.
    Disaster Recovery
    Provides information about configuration, health, and performance of AFM DR configuration in the cluster.
    Gateway Nodes
    Provides details of the nodes that are designated as the gateway node in the AFM or AFM DR configuration.

    To find an AFM or AFM DR relationship or a gateway node with extreme values, you can sort the values that are displayed on the table by different attributes. Click the performance metric in the table header to sort the data based on that metric. You can select the time range that determines the averaging of the values that are displayed in the table and the time range of the charts in the overview from the time range selector, which is placed in the upper right corner. The metrics in the table do not update automatically. The refresh button that is placed above the table allows to refresh the table with more recent data.

  3. A detailed view of the performance and health aspects of the individual AFM or AFM DR relationship or gateway node. To see the detailed view, you can either double-click the row that lists the relationship or gateway node of which you need to view the details or select the item from the table and click View Details. The following details are available for each item:
    Cache
    • Overview: Provides number of available cache inodes and displays charts that show the amount of data that is transferred, data backlog, and memory used for the queue.
    • Events: Provides details of the system health events reported for the AFM component.
    • Snapshots: Provides details of the snapshots that are available for the AFM fileset.
    • Gateway Nodes: Provides details of the nodes that are configured as gateway node in the AFM configuration.
    Disaster Recovery
    • Overview: Provides number of available primary inodes and displays charts that show the amount of data that is transferred, data backlog, and memory used for the queue.
    • Events: Provides details of the system health events reported for the AFM component.
    • Snapshots: Provides details of the snapshots that are available for the AFM fileset.
    • Gateway Nodes: Provides details of the nodes that are configured as gateway node in the AFM configuration.
    Gateway Nodes
    The details of gateway nodes are available under the following tabs:
    • Overview tab provides performance chart for the following:
      • Client IOPS
      • Client data rate
      • Server data rate
      • Server IOPS
      • Network
      • CPU
      • Load
      • Memory
    • Events tab helps to monitor the events that are reported in the node. Similar to the Events page, you can also perform the operations like marking events as read and running fix procedure from this events view. Only current issues are shown in this view. The Monitoring > Events page displays the entire set of events that are reported in the system.
    • File Systems tab provides performance details of the file systems that are mounted on the node. File system's read or write throughput, average read or write transactions size, and file system read or write latency are also available.

      Use the Mount File System or Unmount File System options to mount or unmount individual file systems or multiple file systems on the selected node. The nodes on which the file system need to be mounted or unmounted can be selected individually from the list of nodes or based on node classes.

    • NSDs tab gives status of the disks that are attached to the node. The NSD tab appears only if the node is configured as an NSD server.
    • SMB and NFS tabs provide the performance details of the SMB and NFS services that are hosted on the node. These tabs appear in the chart only if the node is configured as a protocol node.
    • The AFM tab provides details of the configuration and status of the AFM and AFM DR relationships for which the node is configured as the gateway node.
    • Network tab displays the network performance details.
    • Properties tab displays the basic attributes of the node and you can use the Prevent file system mounts option to specify whether you can prevent file systems from mounting on the node.
Parent topic: Monitoring AFM and AFM DR