FreeNas Lost data

Closed - This job posting has been filled and work has been completed.

Job Description

Hello, I have a client that I setup Windows 2012 and a Freenas box.
The network was becoming very slow so my client stupidly restarted the freenas box and the 2012 Server by holding down the power button and restarting it.

They now say that they have lost directories. I have setup ZFS snapshots and scrubs so am hoping that someone can help me find the data lost