HP StorageWorks 4000/6000/8000 .HP StorageWorks SAN Design Reference Guide, Pa - Page 117
Scalability rules, Router, and the MP Router Blade. See
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Rule nl number Description 11 FCIP is supported with IPsec data encryption. This requires a minimum firmware version of 5.2.0a. IPsec is supported with Continuous Access EVA and XP Continuous Access. Note: IPsec and FCIP FastWrite are mutually exclusive and cannot be configured simultaneously. 12 FCIP FastWrite and Fibre Channel FastWrite support: • FCIP is supported with FCIP FastWrite SCSI write acceleration. This requires a minimum firmware version of 5.2.0a. For firmware version 6.3.x, version 6.3.0c or later is required for FCIP FastWrite. FCIP FastWrite is supported with XP Continuous Access and is not supported with Continuous Access EVA. Note: FCIP FastWrite and IPsec are mutually exclusive and cannot be configured simultaneously. • FC FastWrite is supported starting with Fabric OS 5.3.0. However, the following rules apply while configuring FCFW. • FCFW disables the local Ethernet ports (ge0 and ge1), making it impossible to configure FCFW and FCIP tunnels on the same 400 MPR or the MP Router blade. • FCFW does not work in FICON environments. • FCFW flows may be routed to another 400 MPR or MP Router blade on the FC network. This 400 MPR or MP Router blade may have active FCIP tunnels over an IP network. FCFW flows may be passed through the FCIP tunnel, but only if the FCIP FastWrite option is disabled on the tunnel. • FCFW does not support loop device configurations for more than one device. For more information, see the Fabric OS FCIP Administrator Guide, v6.3.0 or later. 13 For redundancy, HP recommends using a minimum of two EX_Ports (router IFLs) for each fabric connected to an 400 MP Router or MP Router Blade. The number of EX_Ports required is based on the performance requirements for all devices shared by fabrics through the router. • For initial settings, 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 nl acceptable based on usage. Use the portperfshow command to monitor router port per- formance. • For very high bandwidth requirements and applications, use a ratio of 3:1 or 1:1. 14 Supports routing between B-series secured and nonsecured edge fabrics using Secure Fabric OS. 15 Supports routing between B-series and M-series/McDATA edge fabrics. See HP StorageWorks Fabric interoperability: merging fabrics based on M-series and B-series Fibre Channel switches application notes at http://hp.com/go/sdgmanuals. Note: Continuous Access products are not supported in routed fabrics using both B-series and M-series/McDATA edge fabrics. Scalability rules Table 32 lists the scalability rules for Meta SANs using integrated Fibre Channel routing, the 400 MP Router, and the MP Router Blade. See Scalability rules on page 124 for MP Router scalability rules. For configurations with an MP Router and a 400 MP Router or MP Router Blade, apply the rules in Table 32. The following terms describe MP Router scalability: • Front phantom domains-"All EX_Ports on a Fibre Channel router that are connected to the same edge fabric are presented as a single front phantom domain. SAN Design Reference Guide 117