Grass Valley K2 Storage v.8.1 - Manual (Page 28)

K2 RAID basic nearline
These cabling instructions apply to the following:
• K2 RAID (Condor with 10G controllers) on a basic nearline K2 SAN.
NOTE: Do not connect the controller MNT port. It should only be used
with a PC in a peer-to-peer connection for diagnostics purposes.
Primary
Expansion 1
Expansion 2
DP0 DP1
To
Expansion
3
To
Expansion
4
To control port
on GigE switch To
Server
SAS cable connectors are keyed to DP IN/OUT ports.
SAS cables
If you have more Expansion chassis than those illustrated, continue the indicated cabling pattern,
alternating connections for additional Expansion chassis between DP1 and DP0. Expansion chassis
1, 3, 5, 7, etc. (odd numbers) connect to DP1. Expansion chassis 2, 4, 6, 8, etc. (even numbers)
connect to DP0. For example, if you have four Expansion chassis (an even number), they are evenly
balanced, so you have two connected to DP1 and two connected to DP0. If you have five Expansion
chassis (an odd number), the “plus one” Expansion chassis is always connected to DP1, so you have
three connected to DP1 and two connected to DP0.
28 K2 Storage Cabling Guide 02 February 2012
Cable K2 devices