The destination storage pool on the target
replication server might be enabled for data deduplication. If it
is, the source replication server sends only extents that are not
in the storage pool.
Procedure
To display information about the effects of data deduplication
on replication processing, issue the QUERY REPLICATION command
and specify FORMAT=DETAILED.
Results
In the output, check the values in the fields that represent
bytes replicated and bytes transferred for each data type:
- Replicated bytes are bytes that were replicated to the target
replication server. If a file was stored in a deduplicated storage
pool, the number of bytes in the stored file might be less than the
number of bytes in the original file. This value in this field represents
the number of physical bytes in the original file.
- Transferred bytes represent the number of bytes that were sent
to the target replication server. For files stored in a deduplicated
storage pool, the value in this field includes the number of bytes
in the original file before duplicate extents were removed. If duplicate
extents were already on the target replication server, the number
of bytes in the original file is more than the number of bytes transferred.