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

Table 31 1606 Extension SAN Switch and DC Dir Switch MP Extension Blade fabric rules (continued)
Description
Rule
number
FCIP tunnels (virtual E_Ports) pass traffic between the SAN extension devices.11
• The 1606 Extension SAN Switch supports up to 8 FCIP tunnels.
• The DC Dir Switch MP Extension Blade supports up to 20 FCIP tunnels.
IPsec is supported on the 1606 Extension SAN Switch beginning with firmware 6.3.1a. See Rule 18.12
FCIP FastWrite and Fibre Channel FastWrite support:13
• FCIP is supported with FCIP FastWrite SCSI write acceleration when using firmware 6.3.0a (or later)
with HP P9000 (XP) Continuous Access. FCIP FastWrite is not supported with HP P6000 Continuous
Access.
Note: FCIP FastWrite and IPsec are mutually exclusive and cannot be configured simultaneously.
• Fibre Channel FastWrite—FC FastWrite is currently not supported with the 1606 Extension SAN Switch
or DC Dir Switch MP Extension Blade.
For redundancy, HP recommends using a minimum of two EX_Ports (router IFLs) for each fabric connected
to a 1606 Extension SAN Switch or DC Dir Switch MP Extension Blade. The number of EX_Ports required
is based on the performance requirements for all devices shared by fabrics through the router.
14
• Calculate the number of EX_Ports using a 5:1 ratio of standard ISLs or switch device ports to router
EX_Port IFLs. Monitor port performance to determine if this ratio is acceptable based on usage. Use
the portperfshow command to monitor router port performance.
• For very high bandwidth requirements and applications, use a ratio of 3:1 or 1:1.
Supports routing between B-series secured and nonsecured edge fabrics using advanced security features
or ACLs.
15
Supports the following features:17
• 8 Gb/s on FC ports
• FCIP Trunking
• Adaptive Rate Limiting
• 10-GbE ports (DC Dir Switch MP Extension Blade)
The 1606 Extension SAN Switch and DC Dir Switch MP Extension Blade do not support the following
features with firmware 6.3.0:
18
• IPsec
• DiffServ priorities
• VLAN tagging
• Third-party WAN optimization
• IPv6 addresses for FCIP tunnels
• VEX_Ports (DC Dir Switch MP Extension Blade)
Scalability rules
Table 33 (page 112) lists the scalability rules for Meta SANs using integrated Fibre Channel routing,
the 1606 Extension SAN Switch, DC Dir Switch MP Extension Blade, 400 MP Router, and MP
Router Blade. For MP Router scalability rules, see “Scalability rules” (page 118). For configurations
with an MP Router and a 400 MP Router or MP Router Blade, apply the rules listed in
Table 33 (page 112).
The following terms describe 1606 Extension SAN Switch and DC Dir Switch MP Extension Blade
scalability:
Fibre Channel switch fabric rules 109