PXH820 User’s Guide –
Dolphin Interconnect Solutions
Page 12
Use Case B - 3 Node Configuration
–
NTB Mode
Each node has a PXH820 or PXH830 adapter and a direct x4 or x8 cable connection is used between all systems. All adapter cards
operate in NTB mode. The DIP-Switch DIP3 is ON to enable dual port mode.
Connecting the cables for 3 Node Configurations, x8 link
Connect the cables between two nodes as described above, connecting two nodes x8. Connect the third node to the two other
cards using similar rules. Always connect P1 + P2 to P1 + P2 or P3 + P4
Use Case C - Multi node with MXS824 switch
–
NTB Mode
Each node has a PXH820 adapter and a direct x4, x8 or x16 cable connection to the MXS824 switch. All PXH820 adapter cards
operate in NTB mode. All DIP-Switches are off. The drawing below shows a 12-node cluster using PXH830 cards. Any mix of PXH820
and PXH830 can be used.
Please consult the MXS824 Users Guide for information how to configure the MXS824 switch for x4, x8 or x16 links and how to
build larger configurations. Currently, up to 60 systems are supported in one PCIe fabric. Please contact Dolphin for more
information.
