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Local database mode

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The KSYS subsystems Failure Detection Engine (FDE) performs a quick query task every 30 seconds to check the state of VIOS database. If the Shared Storage Pool (SSP) state of VIOS database comes down, the Failure Detection Engine (FDE) sends the database status to the KSYS subsystem. The KSYS subsystem modifies the VIOS database status to the local mode. When the VIOS is in the local mode, the messages about file system and health monitoring from the host monitor (HM) are written in the local file, instead of the VIOS database.

Local mode messaging (putmsg) is appended with AIX Family (AF) cluster.

Consider the following restrictions when the VIOS is in the local database mode:
  • You cannot update HA configuration (for example, disable/enable HA monitoring feature) when the VIOS is in the local database mode.
  • The automatic cleanup feature is not supported in the local database mode because Virtual I/O Server do not have database access. You must initiate the VM cleanup operation manually.
  • When Virtual I/O Server is in local database mode, and a new application is added, the name of the newly added application is not displayed at the KSYS subsystem level query. The other information about the application is displayed correctly.
  • If all Virtual I/O Servers in SSP are in local database mode, Failure Detection Engine (FDE) may not detect the host failure of other hosts through running Virtual I/O Servers efficiently.Discovery is required to detect the host failure.
  • Discovery is required to detect the host failure.
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