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October 16th, 2019 11:00

Need to export large quantity of mail (entire domain) from Source One Discovery Manager

Warning: I have very limited experience with SourceOne and Discovery Mgr but am stuck with this project (I have plenty of messaging and other discovery experience though). We recently divested a company and need to give them all their mail that is stored in SourceOne. We are using Discovery Manager 7.2. What would be the best way to export the mail for around 1,000 users from journaled mail? I'm running up against the 100,000 item limit on searches in Discovery Manager when I run a search against the Sender Domain or Recipient Domain since one user alone could have 100,000 messages. I think it will wind up being a couple of TB total and I don't care if it winds up being 200 pst's I just need to provide it to them for historical purposes.

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December 4th, 2019 11:00

Seeing as DM is only going to get that data which is on Legal Hold in DM, I would venture the guess you are actually wanting to get all of the data in SourceOne in the primary archive migrated over.

DM and S1 Search are not designed to be migration tools like you are more likely after.  Also depending on what you want to give back the user, know that SourceOne itself is not a folder aware archive, but can restore back to the user mailbox with folder structure via a SourceOne Historical Restore activity.

If the Journal is the only capture mechanism, you might need to reconstruct the envelopes for archived data.

You will want to review the SourceOne Admin console to get the current amount of data you are actually thinking of for the migration/restore.  Expect that what you see inside SourceOne can expand out to more than 3-5X when taken out of SourceOne.  You are going from a single instanced compressed store to uncompressed and stored by user.

If you have what actually will probably turn out to be much larger than you anticipate, you may be well served going the route of a migration project.  Yes it will cost money to deploy, but for a 1,000 users going the route of Search or DM, you are probably looking at a manual project with months or longer to get this data out.

I do this on a daily basis with customers in small to large environments from a few TB to PB.  If you would like to have a more in depth conversation on what this migration might actually end up needing in effort, let me know.

Oh, and buy lots of disk if you plan to dump this out to PST.

 

 

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