Solved!
Go to SolutionUNITY NAS NDMP BACKUP PERFORMANCE
Hello We need to replace several VNX5600 NASs each equipped with 4 x DB XBlades (3 + 1) and backed up to NDMP on DataDomain and tapes As UNITY does not know how to make 2-way NDMP at the moment, what are the recommendations for optimizing backup flows in NDMP? On our VNX5600, we have 3 active DMs each managing 8 backup streams, ie a total of 24 NDMP flows on FC @ 8 Gb / s, or a total thermal of 192 Gb / s. How to replace the VNX5600 NAS by UNITY that can have the same NDMP backup performance? Knowing that on the U300 / 400 it is possible to manage only 8 Fluxes in 3-way via the LAN 10 Gb and that it is impossible to put 8 ports 10Gb on each UNITY. In addition, the U500 / 600 models can handle 20 NDMP streams, but what number of 10 Gb network links can parallel us for maximum performance? Thanks for your feedback B.Rgds
Typically a VNX5600 DM is using AUX-Port 0 for FC Tape connectivity.
This means all (8) NDMP backup streams of the DM are using (sharing) this single FC 8 Gb/s port for tape connectivity.
Please check your hardware setup, I do not think your 4 DMs are using 4 x 8 = 32 FC 8Gb/s ports
Best Regards
Rainer_EMC
6 Operator
•
8645 Posts
4513
0
Posted February 13th, 2017 08:00
Yes
I would suggest to start with the Unity White papers to get familiar with the Unity archtitecture.
In terms of sizing for NDMP the approach I recommend is to size to actual usage vs. theoretical bandwidth.
I.e. measure how much NDMP peformance is used with the current VNX/Celerra systems - then work with your local Speed Guru on sizing for Unity.
Rainer