Administrator Guide

Table of contents
4 Dell EMC Ready Solution for HPC PixStor Storage | Document ID
Table of contents
Revisions............................................................................................................................................................................. 2
Acknowledgements ............................................................................................................................................................. 3
Table of contents ................................................................................................................................................................ 4
Executive summary ............................................................................................................................................................. 6
Solution Architecture ........................................................................................................................................................... 7
Introduction ................................................................................................................................................................... 7
Architecture .................................................................................................................................................................. 7
Solution Components ................................................................................................................................................. 10
High-Speed, management and SAS connections ...................................................................................................... 11
Storage configuration on ME4 arrays. ........................................................................................................................ 13
NVMe Tier configuration ............................................................................................................................................. 15
Gateway Nodes .......................................................................................................................................................... 15
Ngenea Nodes............................................................................................................................................................ 16
Advanced Analytics .................................................................................................................................................... 16
Performance characterization ........................................................................................................................................... 19
Benchmarks selected and test beds .......................................................................................................................... 19
PixStor Solution with High Demand Meta-Data module (no Capacity Expansion) .................................................... 20
Sequential IOzone Performance N clients to N files .................................................................................................. 20
Sequential IOR Performance N clients to 1 file .......................................................................................................... 21
Random small blocks IOzone Performance N clients to N files ................................................................................. 23
Metadata performance with MDtest using empty files ............................................................................................... 24
Metadata performance with MDtest using 4 KiB files................................................................................................. 25
Metadata Performance using MDtest with 3K files .................................................................................................... 26
Summary .................................................................................................................................................................... 27
PixStor Solution with Capacity Expansion and High Demand Meta-Data ................................................................. 28
Sequential IOzone Performance N clients to N files .................................................................................................. 28
Sequential IOR Performance N clients to 1 file .......................................................................................................... 30
Random small blocks IOzone Performance N clients to N files ................................................................................. 31
Metadata performance with MDtest using empty files ............................................................................................... 32
Metadata performance with MDtest using 4 KiB files................................................................................................. 34
Summary .................................................................................................................................................................... 35
PixStor Solution – NVMe Tier ..................................................................................................................................... 35
Sequential IOzone Performance N clients to N files .................................................................................................. 36
Sequential IOR Performance N clients to 1 file .......................................................................................................... 38