F5 ARX-VE Manuale tecnico
ARX®Site Planning Guide
810-0036-00
ARX Site Planning Guide iii
Publication Date
This manual was published on May 13, 2013.
Legal Notices
Copyright
Copyright 2005-5/13/13, F5 Networks, Inc. All rights reserved.
F5 Networks, Inc. (F5) believes the information it furnishes to be accurate and reliable. However, F5
assumes no responsibility for the use of this information, nor any infringement of patents or other rights of
third parties which may result from its use. No license is granted by implication or otherwise under any
patent, copyright, or other intellectual property right of F5 except as specifically described by applicable
user licenses. F5 reserves the right to change specifications at any time without notice.
Trademarks
Access Policy Manager, Advanced Client Authentication, Advanced Routing, APM, Application Security
Manager, ARX, AskF5, ASM, BIG-IP, BIG-IQ, Cloud Extender, CloudFucious, Cloud Manager,
Clustered Multiprocessing, CMP, COHESION, Data Manager, DevCentral, DevCentral [DESIGN], DNS
Express, DSC, DSI, Edge Client, Edge Gateway, Edge Portal, ELEVATE, EM, Enterprise Manager,
ENGAGE, F5, F5 [DESIGN], F5 Management Pack, F5 Networks, F5 World, Fast Application Proxy,
Fast Cache, FirePass, Global Traffic Manager, GTM, GUARDIAN, IBR, Intelligent Browser Referencing,
Intelligent Compression, IPv6 Gateway, iApps, iControl, iHealth, iQuery, iRules, iRules OnDemand,
iSession, L7 Rate Shaping, LC, Link Controller, Local Traffic Manager, LTM, Message Security
Manager, MSM, OneConnect, OpenBloX, OpenBloX [DESIGN], Packet Velocity, Policy Enforcement
Manager, PEM, Protocol Security Manager, PSM, Real Traffic Policy Builder, Rosetta Diameter Gateway,
ScaleN, Signaling Delivery Controller, SDC, SSL Acceleration, StrongBox, SuperVIP, SYN Check, TCP
Express, TDR, TMOS, Traffic Management Operating System, Traffix Diameter Load Balancer, Traffix
Systems, Traffix Systems (DESIGN), Transparent Data Reduction, UNITY, VAULT, VIPRION, vCMP,
virtual Clustered Multiprocessing, WA, WAN Optimization Manager, WebAccelerator, WOM, and
ZoneRunner, are trademarks or service marks of F5 Networks, Inc., in the U.S. and other countries, and
may not be used without F5's express written consent.
All other product and company names herein may be trademarks of their respective owners.
Patents
This product may be protected by U.S. Patents 7,877,511; 7,958,347. This list is believed to be current as
of May 13, 2013.
Export Regulation Notice
This product may include cryptographic software. Under the Export Administration Act, the United States
government may consider it a criminal offense to export this product from the United States.
RF Interference Warning
This is a Class A product. In a domestic environment this product may cause radio interference, in which
case the user may be required to take adequate measures.
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device pursuant
to Part 15 of FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This unit generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference, in which case the user, at his own expense, will be required to take
whatever measures may be required to correct the interference.
Any modifications to this device, unless expressly approved by the manufacturer, can void the user's
authority to operate this equipment under part 15 of the FCC rules.
iv
Canadian Regulatory Compliance
This Class A digital apparatus complies with Canadian ICES-003.
Standards Compliance
This product conforms to the IEC, European Union, ANSI/UL and Canadian CSA standards applicable to
Information Technology products at the time of manufacture.
Acknowledgments
This product includes software from several third-party vendors. Each vendor is listed below with the
applicable copyright.
Copyright (c) 1990, 1993, 1994, 1995 The Regents of the University of California. All rights reserved.
Copyright 2000 by the Massachusetts Institute of Technology. All Rights Reserved.
Export of this software from the United States of America may require a specific license from the United
States Government. It is the responsibility of any person or organization contemplating export to obtain
such a license before exporting.
Copyright 1993 by OpenVision Technologies, Inc.
Copyright (C) 1998 by the FundsXpress, INC.
All rights reserved.
Export of this software from the United States of America may require a specific license from the United
States Government. It is the responsibility of any person or organization contemplating export to obtain
such a license before exporting.
Copyright (c) 1995-2001 International Business Machines Corporation and others
All rights reserved.
Copyright (c) 1990-2003 Sleepycat Software. All rights reserved.
Copyright (c) 1995, 1996 The President and Fellows of Harvard University. All rights reserved.
Copyright (c) 1998-2004 The OpenSSL Project. All rights reserved.
Unless otherwise noted, the companies, organizations, products, domain names, email addresses, logos,
people, places, and events depicted in examples herein are fictitious. No association with any real
company, organization, product, domain name, email address, logo, person, place, or event is intended or
should be inferred.
Revision History
October 2005 - Rev A
November 2005 - Rev B - hardware correction
March 2006 - Rev C - Software Release 2.3
August 2006 - Rev D, updates for Software Release 2.4
September 2006 - Rev E, added more configuration limits
September 2006 - Rev F, updates for Software Release 2.4.2
March 2007 - Rev G, added best practices for more filer types; updates for Release 2.5
May 2007 - Rev H, updates for Release 2.5.1
December 2007 - Rev J, clarification of Metadata-share best practices
February 2008 - Rev K, clarification of Console-cable pinouts for Release 2.7.1
March 2008 - Rev L, conversion to F5 format for Release 3.1.0
June 2008 - Rev M, more namespace/volume limits for Release 3.2.0
June 2008 - Rev N, updates for the ARX®4000 chassis, and for Release 4.0.0
October 2008 - Rev P, re-brand the OS and revise power specifications for ARX4000
June 2009 - Rev Q, update filer/server instructions
November 2009 - Rev R, add ARX®2000 and other updates for Release 5.01.000
January 2010 - Rev S, more updates for Release 5.01.000
March 2010 - Rev T, updates for Software Release 5.01.005
September 2010 - Rev U, add updates for Release 5.02.000
ARX Site Planning Guide v
January 2011 - Rev V, add updates for Release 5.03.000
June 2011 - Rev W, add updates for Release 6.00.000
September 2011 - Rev X, add updates for Release 6.01.000
October 2011 – Rev Y, refer to licensed limits
July 2012 - Rev Z, add updates for Release 6.02.000
October 2012 - Rev AA, add updates for Release 6.03.000
June 2013 - Rev AB, add updates for Release 6.04.000
vi
1
Site Planning
This manual describes network and environmental considerations for
installing an Adaptive Resource Switch (ARX®). Use this document to
prepare for adding an ARX to your network.
Concepts and Terminology
ARX Site Planning Guide 1 - 3
Concepts and Terminology
The ARX acts as a resource proxy between the current clients and servers
on your network. The switch terminates client requests, determines the
correct server to process the request, and then originates a new request to the
server. Messages in the reverse direction, from servers to clients, also
terminate and restart at the ARX. The clients are said to be at the front end
of the ARX, and the servers are said to be at the back end. As you plan to
add a switch to your network, it is helpful to remember the sharp division
between the switch’s front-end and back-end processing.
The following figure illustrates this sharp division.
Figure 1.1 ARX architecture showing front end versus backend
Platforms and Modules
You can purchase any of the following ARX platforms:
• Single-port ARX-VE (a virtual appliance)
• Single-port ARX-500
• 8-port ARX-1500
• 12-port ARX-2000
• 4-port ARX-2500, with 2 additional 10-Gigabit ports
• 12-port ARX-4000, with 2 additional 10-Gigabit ports
This document is relevant to all of the above platforms.
clients
servers
back end
front end
ARX (proxy)
Chapter 1
Site Planning
1 - 4
Namespaces
You can configure one or more namespaces for your front-end clients. Each
namespace is a collection of virtual file systems, called volumes, under a
single authentication domain. A volume is a collection of shares (or exports)
hosted on the back-end file servers.
Selecting a Network Topology
You can deploy the ARX in one of the following network topologies:
•One-armed proxy. The ARX uses a single logical connection to reach all
clients and servers.
•Multiple subnet. The ARX terminates one or more client subnets and a
separate server subnet.
The following subsections describe each of these topologies.
One-Armed Proxy Topology
In a one-armed proxy topology, the ARX connects to a single IP subnet on a
single VLAN. All of the switch’s connectivity to clients and servers goes
through this single subnet/VLAN. The connection is typically through a
link-aggregation channel.
One-Armed Proxy: Before Installing an ARX
Figure 1.2 shows clients and servers on the same VLAN and subnet before
the introduction of the ARX. The router connects the LAN to additional
client and server subnets, perhaps on other campuses.
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