Mirantis Migration Tool Guide

Use the Mirantis Migration Tool (MMT) to migrate metadata and image binaries from an MSR 2.9.x environment to an MSR 3.0.x environment.

The workflow for migrating an MSR 2.9.x system to an MSR 3.0.x system is a multi-stage sequential operation:

1. Source verification

2. Estimation

3. Extraction

4. Transformation

5. Restoration

• MMT architecture
• Migration prerequisites
• Select the storage mode
• Step-by-step migration
  • Verify the source system configuration
  • Estimate the migration
  • Extract the data
  • Transform the data extract
  • Restore the data extract
• Settings not migrated
• Telemetry
• Troubleshoot migration
  • Filesystem storage back ends
  • Too many open files
  • Failure to load data error message
  • No space left on device
  • Failed to estimate migration error message
  • rethinkdb row cannot be restored
  • Admin password on MSR 3.0.x target no longer works
  • Blob image copy considerations
  • Additional parameters
  • Additional volume mappings for containers
  • Failed to query for metadata size
  • flag provided but not defined: -append
  • Storage configuration is out of sync with metadata
  • The estimate command returns an image data value of 0
  • Unable to get FileInfo: /blobs
• MMT release notes