IBM B48Y At-A-Glance Reference Manual page 17

Table 9 outlines the components used in Figure 9.
Table 9. Components used in reference to Figure 9
Diagram Part number/
reference machine type
0563-022
0563-022
Solution details:
Thirty-four rack units
1:1 subscription ratio within rack
Up to 1.2:1 subscription ratio to rest of network
Connectivity to NAS and/or iSCSI SAN for mid-range scalable storage
In the solution shown in Figure 9 we have two IBM Ethernet Switch B48Ys providing connectivity to all
devices within a single rack. The B48Ys can be in a stacked or non-stacked configuration:
In a stacked configuration, two of the four 10 GbE ports are used for stacking to provide a
high-bandwidth backplane between the switches. Stacking simplifies manageability and allows
servers to utilize Active-Active NIC teaming with standards-based link aggregation to each of the two
switches in the rack. The remaining four 10 GbE ports in the dual-stacked switches connect to the
rest of the network, providing 40 Gbps of bandwidth to the rest of the network. See Figure 7 for an
example.
In a non-stacked configuration, up to four 10 GbE uplinks per switch can be used to connect to the
rest of the network, allowing organizations to deploy highly utilized networks while avoiding
congestion during peak usage.
The B48Y can also be used to connect to NAS arrays for scale-out file sharing and also to a separate
iSCSI SAN for dedicated storage access as bandwidth and security needs require.
IBM Ethernet Switch B48Y
IBM Ethernet Switch B48Y, with optional
4-port 10 GbE Interface Module (SFP+) (FC
6687).
IBM System x server with 1 GbE NICs.
Varies
Other vendor servers can be used.
NAS array.
Varies
Existing network infrastructure that can
include IBM Systems Networking devices and
Varies
other standards-compliant Ethernet/IP
switches and routers.
IBM Ethernet Switch B48Y, with optional
4-port 10 GbE Interface Module (SFP+) (FC
6687).
iSCSI SAN array.
Varies
Description Quantity
2
Twenty 1 RU
Four 2 RU
Varies
-
2
Varies
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