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You must mirror the root aggregates to provide data protection.

Mirroring the root aggregates

You must mirror the root aggregates to provide data protection.

By default, the root aggregate is created as RAID-DP type aggregate. You can change the root aggregate from RAID-DP to RAID4 type aggregate. The following command modifies the root aggregate for RAID4 type aggregate:

storage aggregate modify –aggregate aggr_name -raidtype raid4
Note
 On non-ADP systems, the RAID type of the aggregate can be modified from the default RAID-DP to RAID4 before or after the aggregate is mirrored.
Steps

  1. Mirror the root aggregate:

    storage aggregate mirror aggr_name

    The following command mirrors the root aggregate for controller_A_1:

    controller_A_1::> storage aggregate mirror aggr0_controller_A_1

    This mirrors the aggregate, so it consists of a local plex and a remote plex located at the remote MetroCluster site.

  2. Repeat the previous step for each node in the MetroCluster configuration.