Lsan Zone Binding - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

LSAN zone binding

LSAN zone binding is an optional, advanced feature that increases the scalability envelope for very large
metaSANs.
NOTE: LSAN zone binding is supported only on FC routers with Fabric OS 5.3.0 and later. The FC router
matrix feature is supported only on FC routers with Fabric OS 6.1.0 and later.
Without LSAN zone binding, every FC router in the backbone fabric maintains the entire LSAN zone and
device state database. The size of this database limits the number of FC routers and devices you can have.
With LSAN zone binding, each FC router in the backbone fabric stores only the LSAN zone entries of the
remote edge fabrics that can access its local edge fabrics. The LSAN zone limit supported in the backbone
fabric is not limited by the capability of one FC router. In addition, due to the lower LSAN count, the CPU
consumption by the FC router is lower. If you configure the metaSAN such that the backbone fabric has
two groups of FC routers and there is no LSAN zone sharing or device access between the two groups, the
number of FC routers and devices supported in the backbone fabric can be higher.
Figure 66 shows a sample metaSAN with four FC routers in the backbone fabric. Without LSAN zone
binding, each FC router in the backbone fabric would store information about LSAN zones 1, 2, 3, and 4.
LSAN zone 1
Backbone fabric
LSAN zone 3
Figure 66 LSAN zone binding
After you set up LSAN zone binding, each FC router stores information about only those LSAN zones that
access its local edge fabrics.
and after LSAN zone binding is in effect.
394 Using the FC-FC routing service
LSAN zone 2
Fabric 1 Fabric 2
FC router 1
FC router 3
Fabric 4 Fabric 5
LSAN zone 4
Table 77 shows what LSAN information is stored in each FC router before
Fabric 3
Fabric 7
FC router 2
Fabric 8
FC router 4
Fabric 9
Fabric 6