Figure 5–7: MC1 to MC2 Standard Hub Rolling Upgrade: Replace Second
MC1 in Second System
AlphaServer
Member
System 1
MC2
MC1
AlphaServer
Member
System 2
MC2
MC2
MC2 Hub
# 1
MC2 Hub
# 2
AlphaServer
Member
System 3
MC2
MC2
opto
only
opto
only
1/opto
1/opto
0/opto
ZK-1526U-AI
Setting Up the Memory Channel Cluster Interconnect 5–25