Convert MTree to DDBoost Storage Unit

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If you're migrating from one Data Domain to another and using a non-Avamar backup solution (Veeam, etc) and the built-in DD replication, you'll need to create a new storage unit post replication. Data Domain won't let you create a new SU from the GUI from the replicated MTree so, you'll need to convert the replicated MTree to a DDBoost SU from the CLI:

sysadmin@DDxxxx# mtree list
Name                           Pre-Comp (GiB)   Status
----------------------------   --------------   ------
/data/col1/REPLICATED_MTREE            1924.5   RW
/data/col1/backup                         0.0   RW
----------------------------   --------------   ------
 D    : Deleted
 Q    : Quota Defined
 RO   : Read Only
 RW   : Read Write
 RD   : Replication Destination
 RLGE : Retention-Lock Governance Enabled
 RLGD : Retention-Lock Governance Disabled
 RLCE : Retention-Lock Compliance Enabled

We see our replicated MTree directory REPLICATED_MTREE, and we'll now turn that into a DDBoost storage unit with:

sysadmin@DDxxxx# ddboost storage-unit modify REPLICATED_MTREE user ddboost
Storage-unit "REPLICATED_MTREE" modified for user "ddboost".

Verify the storage unit with:

sysadmin@DDxxxx# ddboost storage-unit show
Name                Pre-Comp (GiB)   Status   User      Report Physical
                                                           Size (MiB)
-----------------   --------------   ------   -------   ---------------
REPLICATED_MTREE           1924.5   RW       ddboost                 -
-----------------   --------------   ------   -------   ---------------
 D    : Deleted
 Q    : Quota Defined
 RO   : Read Only
 RW   : Read Write
 RD   : Replication Destination

Now you can point your Veeam (or whatever) jobs to the new Data Domain with your historical data intact. Yay!