Deduplicate Production Storage
This option is only available for Production Storage Targets, i.e. Mailboxes/folders
within Exchange Servers and PST files located within the Production pane
of DigiScope.
WHAT IS A DUPLICATE ITEM?
Each item has a unique "Search Key" field and a Modified field
which can be displayed by Changing the COLUMNS
shown within the item view as shown in the image below.
- Notice
that the three (3) items at the bottom of the list have the
same "Search Key" properties. This lets us know they
are based off of the same message
- Now
look at the "Modified" field for those same 3 message messages
and notice that there are
- Two
(2) items with the exact same modification time of Wed
10/29/2008 18:02:36;410 and therefore
since the Search Key
and Modification fields
match we know these are exact duplicates
- One
(1) item has a different modification time of Thu
10/30/2008 10:06.22.882 telling us that while its
related to the same message because of using the same Search Key,
its been modified in some way and that makes it NOT a duplicate
ATTENTION: The Deduplicate
Production Storage is very different from the
- Using
the "De-Duplicate Copies"
option in the advanced search dialog compares all items within the
search scope for duplicates. For example
- If your searching an entire database
with this option every email in every folder of every mailbox
will be searched for duplicates, which means you may find the
very same items within
- Other mailboxes if the message
was sent to multiple parties
- Multiple folders in the same
mailbox if an item was copied, deleted etc
- The Deduplication Production Storage
function ONLY compares and acts on items located in the SAME folder
which means
- if the same item exists within the INBOX and the DELETED items
folders they are not considered duplicates
- For the example below all the items are within Andy Jacobs
Inbox folder, therefore if we start the Deduplication
Production Storage function, by default it will only remove
one of the items with the modification value of Wed
10/29/2008 18:02:36;410
To utilize the function;
- Right
click on the desired Database, Mailbox or Folder and select Deduplicate.
- The
Deduplication Option dialog appears.
- Set
the options as desired
- Action for duplicates: You
can choose to;
- DELETE
Items and you MAY be able recover the items post deletion,
however there is no guarantee.
- PURGE
Items and you will NOT be able to recover the items post purge
(unless you have litigation hold enabled).
- Export To: Before Items are
Deleted/Purged you can choose to Export a copy to PST.
- We
highly recommend that you use the Export to PST option since
it allows you a rollback method if desired. Once you
validate the results you can easily delete the PST file.
- Ignore Modification Time: READ BEFORE ENABLING During
Deduplication DigiScope examines the values of the "Search
Key" and the "Modified"
columns to determine if there are duplicates present. If you end
up with matching "Search
Key" value, yet the modified time is different DigiScope
will not see the items as being duplicate. This can occur if an
end user opens and saves one of the messages between restorations
or if alternate restore methods are used. If you enable the Ignore Modification Time option,
DigiScope will ONLY compare the values of the "Search
Key" column and will remove all messages with the
same Search Key values without considering the modification date/time
value
- Using the same example
above, if we were to enable Ignore Modification Time and start
the Deduplication it would remove 2 of the 3 items below.
Which may be desirable, however the caveat is that DigiScope
can select any two of the three messages, and if it elects
to delete the item with the modification time of Thu 10/30/2008 10:06.22.882
there is no way to determine the contents of the modified
message. Conversely if DigiScope removes both of the items
with the modified time of Wed
10/29/2008 18:02:36;410 you are left
with the modified version dated Thu
10/30/2008 10:06.22.882 and that message
may or may not contain the original data
- Deduplication Scope: Allows
you to only Include OR Exclude specific folders/subfolders from
the Delete/Purge actions.
- Click
OK to execute the deduplication
- If
you elected to Export items before the deletion/purging of items
you will be presented with the Export to PST options
- The
process is run and the results dialog appears
Continue to Additional Options &
Features