DPM2012 R2 and Virtual Tape Library ( VTL ) - How to allocate disk volume?

Hello,

We plan to upgrade our backup solution running DPM2010 to DPM2012 R2 with a new storage pool

While we had until now a direct attached storage (SAS connection) to the DPM server, our vendor proposes a storage model with VTL (Virtual Tape Library) interface.

If I do understand, VTL acts like a Virtual Tape Library and thereforce appears like a "physical tape Library" under DPM Library management, right? Instead of having physical tape, you manage virtual tape.

In that case, once you attache your storage to your DPM server, it only appears as a tape libray, and you can't allocate it for a disk pool allocation?

In that case, if you plan to have short-term protection with Disk2Disk backup, it's not possible Under DPM, is it?

Does anyone have a experience return of using SAN storage with VTL interface?

Regards,

Evan

March 18th, 2015 9:15am

Hi,

That is correct, if the storage device is configured as a Virtual Tape Library (VTL) - then Windows will see that device as a tape library and not as block level storage that DPM Storage pool requires.   You will only be able to use it as a tape library in DPM for short term or long term Disk-2-Tape backups.

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March 18th, 2015 12:05pm

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