.SAN design reference guide Vol. 1-5 785350-001

Table 27 B-series Fibre Channel switch fabric rules (continued)
DescriptionRule number
For HP P9000 (XP) Continuous Access, see “HP P9000 (XP) Continuous Access FCIP gateway support”
(page 314).
Within a fabric, assign a unique domain number (domain ID) and a unique WWN to each switch. All
switch configuration parameters for the same switch models must be the same. Do not configure any
switches with a domain ID of 8, which is reserved for HP-UX.
11
Insistent Domain ID mode is required on all B-series switches in fabrics that include HP-UX 11i v3 (or
earlier) or IBM AIX servers, when configuring switches for FICON or when implementing port-based
fabric zoning.
Routing policy—HP recommends the same routing policy be used in all switches within a fabric.
Switch data routing policies—Different switch models support different routing policies. For most
configurations, the default routing policy provides the best performance. See "Routing Traffic" in the
appropriate Fabric OS administrator guide.
12
Maximum of seven hops (eight switches) between any two communicating devices.13
You can configure a Fibre Channel port as an F_Port, FL_Port, E_Port, or EX_Port (Fibre Channel routing),
and configure a GbE port as a VE_Port (FCIP) or VEX_Port (FCIP with Fibre Channel routing).
14
Note: The 16 Gb/s port blades do not support FL ports.
Traffic switching is supported between the following port types:
• Fibre Channel switching (F_Port, FL_Port, E_Port)
• Fibre Channel switching and Fibre Channel routing (F_Port, FL_Port, EX_Port)
• Fibre Channel switching and FCIP (F_Port, FL_Port, VE_Port, VEX_Port)
• Fibre Channel routing and FCIP (VE_Port, VEX_Port)
Note: VEX_Ports and EX_Ports cannot be connected to the same edge fabric.
For HP StoreVirtual 4000 FC, unique domain IDs are required in the entire Fibre Channel SAN to which
the StoreVirtual storage system is connected, including multiple independent fabrics. Overlapping domain
IDs (even in non-merged/independent fabrics) are not supported.
15
NOTE: Not all topologies can support the maximum port or switch count. See “Topology
maximums” (page 33).
Switch database size
Table 28 (page 106) describes the database size rules for B-seriesFibre Channel switches in a fabric.
Table 28 Database size rules for B-series Fibre Channel switches
DescriptionRule number
Secure Fabric OS—With security enabled in a fabric, the maximum security database size is:1
• 128 KB with 64 KB active if the fabric contains only 2 Gb/s or 4 Gb/s switches.
• 1 MB with Fabric OS 6.x.
This database, which stores DCC, SCC, and FCS policies, can support ACL security settings for
environments with up to 14,000 attached devices. This is not supported with the 4/16 SAN switch.
Advanced Zoning—The maximum zoning database size is as follows:2
• If all switches in a fabric are using firmware 5.2x (or later), the database size must not exceed 1
MB.
• If the fabric contains 2 Gb/s or 4 Gb/s switches with firmware 3.2.x (or later), the database must
not exceed 256 KB.
Note: Use the cfgsize command to determine the size of the zoning database.
106 B-series switches and fabric rules