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Oracle® VM Server for SPARC 3.6 Administration Guide

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Updated: September 2019
 
 

Monitoring a Migration in Progress

When a migration is in progress, the domain being migrated and the migrated domain are shown differently in the status output. The output of the ldm list command indicates the state of the migrating domain.

When migrating a domain that has SR-IOV Ethernet virtual functions, it might take some time after the migration has completed before the virtual functions are back in use by the guest domain. This situation occurs because the time it takes to assign virtual functions to the target machine depends on the number of virtual functions in the domain. However, IPMP handles the return to the active path after the assignment of virtual functions is complete.

    The sixth column in the FLAGS field shows one of the following values:

  • s The domain that is the source of the migration.

  • t The migrated domain that is the target of the migration.

  • e An error has occurred that requires user intervention.

The following command shows that the ldg-src domain is the source of the migration:

source:primary# ldm list ldg-src
NAME       STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
ldg-src    suspended  -n---s          1     1G       0.0%  2h 7m

The following command shows that the ldg-tgt domain is the target of the migration:

source:primary# ldm list ldg-tgt
NAME       STATE      FLAGS   CONS    VCPU  MEMORY   UTIL  UPTIME
ldg-tgt    bound      -----t  5000    1     1G

The long form of the status output shows additional information about the migration. On the source machine, the status output shows the completion percentage of the operation as well as the names of the target machine and the migrated domain. Similarly, on the target machine, the status output shows the completion percentage of the operation as well as the names of the source machine and the domain being migrated.

The following command shows the progress of a migration operation for the ldg-src domain:

source:primary# ldm list -o status ldg-src
NAME
ldg-src
 
STATUS
    OPERATION    PROGRESS    TARGET 
    migration    17%         system2