Monitoring the Host Interconnect

6.3.11 Monitoring the Host Interconnect

Host interconnect metrics provide information about the I/O transmission for hosts that access cell storage.

Host interconnect metrics are identified in the METRICCURRENT, METRICDEFINITION, and METRICHISTORY objects as having objectType=HOST_INTERCONNECT.

The host interconnect for the metric is specified by the metricObjectName attribute of the METRICCURRENT and METRICHISTORY objects.

For cumulative metrics, the metric value for a specific time period can be determined by subtracting values from different collectionTime periods. For rate metrics, the time period for the metric value is over the previous minute.

Example 6-14 Displaying Host Interconnect Metric Definitions

This example shows how to display the host interconnect metric definitions that are available in the Oracle Exadata System Software.

CellCLI> LIST METRICDEFINITION ATTRIBUTES NAME,DESCRIPTION WHERE OBJECTTYPE = HOST_INTERCONNECT
         N_MB_DROP               "Number of megabytes droped during  transmission  to  a particular host"
         N_MB_DROP_SEC           "Number of megabytes droped during transmission  per second  to  a particular host"
         N_MB_RDMA_DROP          "Number of megabytes dropped during RDMA transmission to  a particular host"
         N_MB_RDMA_DROP_SEC      "Number of megabytes dropped during RDMA transmission per second  to  a particular host"
         N_MB_RECEIVED           "Number of megabytes received from a particular host"
         N_MB_RECEIVED_SEC       "Number of megabytes per second received from a particular host"
         N_MB_RESENT             "Number of megabytes resent  to  a particular host"
         N_MB_RESENT_SEC         "Number of megabytes resent per second to  a particular host"
         N_MB_SENT               "Number of megabytes transmitted to  a particular host"
         N_MB_SENT_SEC           "Number of megabytes transmitted per second to  a particular host"
         N_RDMA_RETRY_TM         "Latency of the retry actions during RDMA transmission to a particular host"

Parent topic: Monitoring Oracle Exadata System Software Components