White Papers

3 PS Series Architecture: MPIO with Devices That Have Unequal Link Speeds | TR1105 v1
Table of contents
Revisions .................................................................................................................................................................................................. 2
Executive summary .............................................................................................................................................................................. 4
1 Best Practice for network interfaces in a PS Series SANs ...................................................................................................... 5
1.1 Distribution of data in a PS Series SAN ........................................................................................................................... 5
2 Multi-Path I/O ................................................................................................................................................................................ 6
2.1 Dell PS Series MPIO extensions ....................................................................................................................................... 6
3 Handling unequal network speeds ............................................................................................................................................ 8
3.1 When host ports have the same speed as PS Series group ports ............................................................................ 8
3.2 When host ports are faster than PS Series group ports ............................................................................................. 8
3.3 When host ports are slower than PS Series group ports ........................................................................................... 9
3.4 Connection Examples ..................................................................................................................................................... 10
3.5 A complex example using variable speed host interfaces and limiting total connections per volume ......... 11
A MPIO extension controls per platform .................................................................................................................................... 12
B Additional resources .................................................................................................................................................................... 13