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Can't Add That Much to a Backup Set Error.

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Running 9.0.1(401) on a 2011 2Ghz i7 MacMini Server with 8GB of RAM. Backing up to an external 2T G-Raid Drive formatted as HFS+ Journaled and attached via FW800. I have two scripts, one is a Proactive and the other is a simple Backup script. I have setup a few machines around the office and have specified their user folders as favorites. I then added those favorites to my two scripts. When I start the backup of either script, and not matter which machine starts off the backup, it always errors out on the first machine and says something like this:

 

 

Normal backup using Mobile at 3/16/12 (Activity Thread 1)

To Backup Set HD Backup...

- 3/16/12 9:46:40 PM: Copying beth on Beth Moline's iBook

#Can't add that much data to Backup Set

(limited to 1,024 GB)

3/16/12 9:53:16 PM: Execution incomplete

Remaining: 484 files, 7.2 GB

Completed: 0 files, 0 B

Performance: 0 MB/minute

Duration: 00:06:36 (00:06:35 idle/loading/preparing)

 

 

I have also gone so far as to uninstall all clients and application files from all machines and then re-installed everything. I get the same error.

 

Anyone have any hints?

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Backing up to an external 2T G-Raid Drive...

Actually, Retrospect doesn't back up to a hard drive volume; it backs up to a Media Set, which may be stored on a hard drive volume.

 

Retrospect has long had a limit of 1TB for File media sets. My guess is that's your problem. Create and use a Disk media set instead.

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Sets are limited to less than 1TB (1024 GB) in size.

 

I ended up splitting the backup set into multiple media files. i.e. Homefolders A-K, and J-Z, as well, I pulled the High Volume users into their own backup set.

 

I have no idea if Retrospect is working on this, if it's a physical limitation… perhaps file a tech support request and see what they say. I'd be curious to know. I worry I'm going to end up with media sets for each letter of the alphabet as time goes on.

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Sets are limited to less than 1TB (1024 GB) in size.

 

Not all sets, only File Media Sets.

 

Disk Media Sets have no such limitation, and bring with them other benefits such as grooming.

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