ServerNet Cluster Manual

Upgrading a ServerNet Cluster
ServerNet Cluster Manual—520575-003
4-59
Example: Merging Two Star Topologies to Create a
Split-Star Topology
Figure 4-7 shows a four-node ServerNet cluster that has been modified to support up
to 16 nodes by upgrading software and adding cluster switches. In addition, one new
server has been added to the cluster.
Because the nodes in the modified cluster are running G06.09, G06.10, and G06.11
RVUs, the four-lane links must be 80 meters or less.
Figure 4-7. Example of a Split-Star Topology With 80-Meter Four-Lane Links
Cluster
Switch
Before Software Upgrade
After Software Upgrade
G06.09
T0502
T7945AAS
T0294
T1089AAX
T9082ACN
T0569
X1
T0569AAA
(loaded on
cluster switch)
Y1
T0569AAA
(loaded on
cluster switch)
G06.10
T0502
T7945AAT
T0294
T1089AAX
T9082ACN
T0569
G06.10
T0502
T7945AAT
T0294
T1089AAX
T9082ACN
T0569
G06.11
T0502AAA
T7945AAV
T0294AAB
T1089AAZ
T9082ACN
T0569
G06.11
T0502AAE
T7945AAW
T0294AAB
T1089ABB
T9082ACQ
T0569AAB
Y1
T0569AAB
(loaded on
cluster switch)
X1
T0569AAB
(loaded on
cluster switch)
G06.10
T0502AAE
T7945AAW
T0294
T1089ABB
T9082ACQ
T0569AAB
G06.10
T0502AAE
T7945AAW
T0294
T1089ABB
T9082ACQ
T0569AAB
G06.09
T0502AAE
T7945AAW
T0294
T1089ABB
T9082ACQ
T0569AAB
VST103.vsd
Y2
T0569AAB
(loaded on
cluster switch)
X2
T0569AAB
(loaded on
cluster switch)
G06.09
T0502AAE
T7945AAW
T0294
T1089ABB
T9082ACQ
T0569AAB
80-m Four-Lane Link
80-m Four-Lane Link
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
NonStop
Himalaya
S-Series
Server
Cluster
Switch
Cluster
Switch
Cluster
Switch
Cluster
Switch
Cluster
Switch
Note: The TSM client software IPM
(T8154) is not included in this example
because the TSM client is a prerequisite
of the TSM server software IPM (T7945)
and usually uses the same IPM identifier.