HP StorageWorks 4000/6000/8000 - Enterprise Virtual Arrays Reference Manual page 117

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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:
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.
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
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.
FCIP is supported with FCIP FastWrite SCSI write acceleration. This requires a minimum firm-
ware 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 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
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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.
Scalability rules
Description
on page 124 for MP Router scalability rules.
SAN Design Reference Guide 117