Hello, I'm having trouble centralize logs because my storage system performs poorly.

I have several nxlog-ce agents sending logs with om_tcp module and server I have a nxlog-ce recording these logs with the module om_file in a shared directory on my NAS.

What recommendation for improving the performance of my solution as a whole? Use another distributed file system? Using an unstructured database? Exsitem more options?

Obs .: I need to be able to retrieve the log in its original format, I need to be fault-tolerant and I need to have high write performance.