HP StorageWorks Fabric OS 5.3.x administrator guide (5697-0244, November 2009)

254 Using the FC-FC routing service
Interoperability with legacy FCR switches
The following interoperability considerations apply when administering legacy FCR switches in the same
backbone (BB) fabric as switches supporting Fabric OS v5.2.x:
• When a legacy switch is connected to the fabric, a RAS log message is issued indicating that the
capability of the backbone (BB) fabric is lower as legacy FCR switches (those with XPath OS and Fabric
OS v5.1) support lower capability limits.
• If an XPath OS switch joins the BB fabric, a RAS log message is issued indicating that the
backbone-to-edge (B2E) fabric is not supported with the XPath OS switch.
For the exact RAS log message descriptions, see the following RAS logs: FCR_1055, FCR_1056, and
FCR_1073.
Backward compatibility
In a fabric with Secure Fabric OS enabled, the edge fabric must have Fabric OS v3.2, v4.4.0, or later
because only DH-CHAP authentication is supported.
For a nonsecure fabric, the hardware and firmware compatibility is described in Table 59.
Table 59 Hardware and firmware compatibility for nonsecure fabrics
HP StorageWorks model Supported version
1 Gb switches Fabric OS 2.6.1 or later
SAN Switch 2/8EL, SAN Switch
2/16EL, SAN Switch 2/16
Fabric OS 3.1.0 or later
SAN Switch 2/32, Core Switch 2/64 Fabric OS 4.1.0x or later
SAN Switch 2/8V, SAN Switch
2/16V, SAN Director 2/128
Fabric OS 4.2.0x or later
SAN Switch 4/32 Fabric OS 4.4.0 or later
4/8 and 4/16 SAN Switch, Brocade
4Gb SAN Switch for HP p-Class
BladeSystem, Brocade 4Gb SAN
Switch for HP c-Class BladeSystem,
4/256 SAN Director
Fabric OS 5.0.1 or later
4/64 SAN Switch, 400 MP Router Fabric OS 5.1.0 or later
4/256 SAN Director with FC4-48 or
FC4-16IP blades
Fabric OS 5.2.x or later
SAN Switch 4/32B Fabric OS 5.3.x or later