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Can't append to deduplication media

Created: 22 Jul 2014 • Updated: 23 Jul 2014 | 2 comments
This issue has been solved. See solution.

I'm running BE 2010 R3 with the OST plugin and a Dell DR4100 dedup device with the latest software. I'm only able to overwrite dedup media. When I try to run an append job, I get the "No appendable media could be mounted" error. The OST media is set to allow infinite append, and I've only used 3 GB out of the 50 GB media allocation for my testing. I have no trouble appending to tape or on regular B2D jobs. What else should I check?

Operating Systems:

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lmosla's picture

Hi,  this is by design and your backup is functioning correctly. OST Deduplication Media cannot be appended.  refer to

TR-BE2014's picture

Criminy. Searched all over the site and didn't find that. Thanks.