Perform Hard-Link Backup Using admintools

Before performing this task, identify the instance IP addresses in your source cluster and make note of your RAID volumes for later use. Then, create a backup configuration file with hard-link backup enabled.

For information about enabling hard-link backup within a backup configuration file, see Configuring the Hard Link Local Parameter in the full Vertica documentation.

  1. Stop the database:
    admintools -t stop_db -d VMart
  2. On each node, unmount your data volume:
    umount /vertica/data
  3. Create a snapshot of the RAID-0 volumes across your cluster, and make note of the each volume's corresponding snapshot ID. You need this information to assign snapshots to their correct node and volume designation during the restore process.
  4. On each node, mount your data volume:
    mount /vertica/data
  5. Start your database:
    admintools -t start_db -d VMart
  6. Save the following:
    • Your RAID-0 configuration file for each node:
      /etc/mdadm.conf
    • Your backup configuration file:
      vmart_backup.ini
    • [Optional] Your admintools configuration file, which has information on your node IP addresses and mapping:
      /opt/vertica/conf/admintools.conf