Manuale d’uso / di manutenzione del prodotto 7102XP-LC del fabbricante LSI
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® DB15-000264-02 2 Gbit/s Fibre Channel Host Adapters LSI7102XP-LC , LSI7102LXP-LC LSI7202XP-LC , LSI7202LXP-LC LSI7402XP-LC LSI7202EP-LC , LSI7202EP LSI7402EP-LC , LSI7402EP USER’S GUIDE A ugust 2005 V ersion 2.
ii Copyright © 2002, 2005 by LSI Logic Corporation. All rights reserved. This document contains proprietar y inf or mation of LSI Logic Cor poration. The inf or mation contained herein is not to be used by or disclosed to third parties without the e xpress wr itten permission of an officer of LSI Logic Cor poration.
2 Gbit/s Fibre Channel Host Adapters User’ s Guide iii Copyright © 2002, 2005 by LSI Logic Corporation. All rights reserved. Preface This book is the primar y reference and user’ s guide for the LSI Logic f amily of 2 Gbit/s Fibre Channel host adapter boards.
iv Pref ace Copyright © 2002, 2005 by LSI Logic Corporation. All rights reserved. Related Publications LSIFC929X Dual Channel Fibre Channel I/O Processor T echnical Manual, Document No . DB14-000202-01 LSIFC919X Single Channel Fibre Channel I/O Processor T echnical Manual, Document No .
2 Gbit/s Fibre Channel Host Adapters User’ s Guide v Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Contents Chapter 1 Installation Procedures 1.1 General Description 1-1 1.2 Quick Installation Procedure 1-2 1.3 Detailed Installation Procedure 1-3 1.
vi Contents Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8 Ph ysical Characteristics 2-9 2.8.1 LSI7102XP-LC Host Adapter Configuration 2-9 2.8.2 LSI7102XP-LC Connector and Indicator LED 2-10 2.8.3 LSI7102LXP-LC Host Adapter Configuration 2-12 2.
Contents vii Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Chapter 4 BIOS Features 4.1 LSI Logic Boot BIOS 4-2 4.1.1 LSI Logic Boot BIOS Features 4-2 4.1.2 BIOS Overview 4-2 4.1.3 LSI Logic BIOS Boot Specification (BBS) 4-2 4.
viii Contents Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved..
ix Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Figures 1.1 Hardware Connections f or the LSI Logic Host Adapter 1-4 1.2 Inser ting the LSI Logic Host Adapter 1-5 2.1 LSI7102XP-LC Host Adapter Configuration 2-10 2.2 LSI7102XP-LC Connector and Indicator LED 2-11 2.
x Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved..
xi Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. T ables 2.1 LSI Logic 2 Gbit/s FC Host Adapter Descr iptions 2-2 2.2 Hardware and Softw are Requirements 2-3 2.3 Maximum P ower Requirements 2-5 2.4 LED Appearance to Represent Link Status 2-7 2.
xii Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved..
2 Gbit/s Fibre Channel Host Adapters User’ s Guide 1-1 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Chapter 1 Installation Pr ocedures This chapter contains general inf or mation about the LSI Logic 2 Gbit/s f amily of Fibre Channel (FC) host adapters.
1-2 Installation Procedures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 1.2 Quic k Installation Procedure This section provides an o verview of the installation procedure.
Detailed Installation Procedure 1-3 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 1.3 Detailed Installation Pr ocedure This section provides step-b y-step instructions for installing the host adapter . If you are e xper ienced in these tasks , you ma y prefer to use Section 1.
1-4 Installation Procedures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. connector contacts. LSI Logic recommends using a static ground strap . Step 5. Locate the slots for PCI plug-in board installation. Ref er to the user’ s manual supplied with your computer to confirm the location of the PCI slots.
Detailed Installation Procedure 1-5 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Step 7. Carefully inser t PCI Bus edge connector J1 (see Figure 1.1 )o f the host adapter into the PCI slot. Make sure the edge connector is properly aligned bef ore pressing the board into place, as sho wn in Figure 1.
1-6 Installation Procedures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved..
2 Gbit/s Fibre Channel Host Adapters User’ s Guide 2-1 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Chapter 2 2 Gbit/s FC Host Adapter Characteristics This chapter provides specific details about the ph ysical environment associated with the 2 Gbit/s f amily of FC host adapters.
2-2 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. This manual serves as a step-by-step guide during the installation of y our LSI Logic host adapter . T able 2.1 lists the 2 Gbit/s FC host adapters discussed in this User’ s Guide.
F eatures 2-3 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.2 Features This section provides an o verview of the PCI-X Interf ace , the PCI Express Interf ace , and the FC Interface for the 2 Gbit/s f amily of host adapters.
2-4 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.2.2 PCI Express Interface The PCI Express (launched in 2002) interf ace is a new serial I/O interf ace standard being used in next gener ation computer , storage and communications platf or ms .
Ph ysical Environment 2-5 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.3.1 Electrical Characteristics T able 2.3 lists the maximum power requirements and includes all of the LSI Logic 2 Gbit/s FC host adapter boards under nor mal oper ation.
2-6 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.3.3 Electroma gnetic Compliance These boards are designed and implemented to minimize susceptibility to electromagnetic emissions, and the eff ects of electromagnetic discharge.
PCI System ID V alues 2-7 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.4.3 FC Interface The FC interf ace varies, depending on which LSI Logic 2 Gbit/s host adapter you ha ve selected. Ref er to Section 2.8, “Ph ysical Characteristics, ” page 2-9 f or details.
2-8 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.6 PCI Subsystem ID V alues All LSI Logic 2 Gbit/s host adapters are assigned PCI Subsystem V endor IDs (SVIDs) and Subsystem IDs (SSIDs) to allow drivers and BIOS to diff erentiate the individual host adapter variants.
Unique W or ld Wide Name 2-9 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.7 Unique W orld Wide Name Each LSI Logic FC host adapter is provided with a unique W orld Wide Name, specified b y IEEE. The last 12 hexadecimal char acters of this address appear on a host adapter label.
2-10 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Figure 2.1 LSI7102XP-LC Host Adapter Configuration 2.8.2 LSI7102XP-LC Connector and Indicator LED The LSI7102XP-LC I/O brac ket is configured as shown in Figure 2.
Ph ysical Characteristics 2-11 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Figure 2.2 LSI7102XP-LC Connector and Indicator LED T able 2.7 descr ibes the LSI7102XP-LC Link Activity/Link F ault LED appearance that indicates a v alid link, presence of link activity , or a fault on the link.
2-12 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.3 LSI7102LXP-LC Host Adapter Configuration The LSI Logic LSI7102LXP-LC is a single channel 2 Gbit/s FC adapter . One LC optical connector is used f or I/O , which is accessible through the module brac ket.
Ph ysical Characteristics 2-13 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.4 LSI7102LXP-LC Connector and Indicator LED The LSI7102LXP-LC I/O brac ket is configured as shown in Figure 2.4 . The LC connector provides the connection from the adapter channel to the FC subsystem.
2-14 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.5 LSI7202XP-LC Host Adapter Configuration The LSI Logic LSI7202XP-LC is a dual-channel, 2 Gbit/s FC adapter . T wo LC optical connectors, used f or I/O, are accessib le through the module brac ket.
Ph ysical Characteristics 2-15 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.6 LSI7202XP-LC Connectors and Indicator LEDs The LSI7202XP-LC I/O brac ket is configured as sho wn in Figure 2.6 . The LC connectors provide the connections from the adapter channels to the FC subsystem.
2-16 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.7 LSI7202LXP-LC Host Adapter Configuration The LSI Logic LSI7202LXP-LC is a dual-channel, 2 Gbit/s FC adapter . T wo LC optical connectors, used f or I/O, are accessib le through the module brac ket.
Ph ysical Characteristics 2-17 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.8 LSI7202LXP-LC Connectors and Indicator LEDs The LSI7202LXP-LC I/O brac ket is configured as shown in Figure 2.8 . The LC connectors provide the connections from the adapter channels to the FC subsystem.
2-18 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.9 LSI7202EP-LC Host Adapter Configuration The LSI Logic LSI7202EP-LC is a dual-channel, 2 Gbit/s FC adapter . T wo LC optical connectors, used f or I/O, are accessib le through the module brac ket.
Ph ysical Characteristics 2-19 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.10 LSI7202EP-LC Connectors and Indicator LEDs The LSI7202EP-LC I/O brac ket is configured as sho wn in Figure 2.10 . The P or t 0 and P or t 1 connectors provide the connections from the adapter channels to the FC subsystem.
2-20 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.11 LSI7202EP Host Adapter Configuration The LSI Logic LSI7202EP is a dual-channel, 2 Gbit/s FC adapter . T wo connectors, used f or I/O, are accessib le through the module brac ket.
Ph ysical Characteristics 2-21 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.12 LSI7202EP Connectors and Indicator LEDs The LSI7202EP I/O brac ket is configured as sho wn in Figure 2.12 . The P or t 0 and P or t 1 connectors provide the connections from the adapter channels to the FC subsystem.
2-22 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.13 LSI7402XP-LC Host Adapter Configuration The LSI Logic LSI7402XP-LC is a quad-channel, 2 Gbit/s FC adapter . F our LC optical connectors, used f or I/O , are accessible through the module brac ket.
Ph ysical Characteristics 2-23 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.14 LSI7402XP-LC Connectors and Indicator LEDs The LSI7402XP-LC I/O brac ket is configured as sho wn in Figure 2.14 . The LC connector provides the connection from the adapter channel to the FC subsystem.
2-24 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.15 LSI7402EP-LC Host Adapter Configuration The LSI Logic LSI7402EP-LC is a quad-channel, 2 Gbit/s FC adapter . F our LC optical connectors, used f or I/O , are accessible through the module brac ket.
Ph ysical Characteristics 2-25 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.16 LSI7402EP-LC Connectors and Indicator LEDs The LSI7402EP-LC I/O brac ket is configured as sho wn in Figure 2.16 . The LC connectors provide the connections from the adapter channels to the FC subsystem.
2-26 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.17 LSI7402EP Host Adapter Configuration The LSI Logic LSI7402EP is a quad-channel, 2 Gbit/s FC adapter . F our connectors, used f or I/O, are accessib le through the module brac ket.
Ph ysical Characteristics 2-27 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 2.8.18 LSI7402EP Connectors and Indicator LEDs The LSI7402EP I/O brac ket is configured as sho wn in Figure 2.18 . The P or t 0, P or t 1, P or t 2, and P or t 3 connectors provide the connections from the adapter channels to the FC subsystem.
2-28 2 Gbit/s FC Host Adapter Characteristics Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved..
2 Gbit/s Fibre Channel Host Adapters User’ s Guide 3-1 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Chapter 3 Firmware Installation Pr ocedure This chapter provides inf or mation about installing and configur ing FC firmware and includes the follo wing sections: • Section 3.
3-2 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 3.1 FC Firmware This section includes the f eatures, description, installation, and configuration of the FC firmware. The installation method v aries depending on the operating system.
Download Ne w FC Fir mware 3-3 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. frames to the controller , and processing reply message frames received from the controller .
3-4 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. These files represent updated code that you ma y store on your LSI Logic host adapter using one of the methods described in the next sections.
Update the FC Firmware 3-5 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Step 2. Open a ter minal window , and open the director y containing the LSIUtil program. Step 3. Ex ecute the LSIUtil program. Step 4. Select a device to update ( Figure 3.
3-6 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Figure 3.2 LSIUtil Download Options Step 6. When prompted, type the fir mware file name . Step 7. T ype Y es , when asked to continue ( Figure 3.
Update the FC Firmware 3-7 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 3.3.3 Command Line Update T ool for DOS Using a DOS bootable flopp y , users can use a FC Flash Utility called MPTUtil to update LSI Logic adapters with new firmware ( Section 3.
3-8 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Step 5. The MPTUtil program displa ys a menu of options ( Figure 3.5 ). T o update the fir mw are, select option a - Update Firmware . Figure 3.
Advanced User: Adjusting Default Firmware Settings 3-9 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. LSI Logic Adapter , and should be reser ved f or adv anced users who fully understand the implications of such changes.
3-10 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. g - T oggle Board Speed on Function 1 Successively pressing the F k ey (f or Function 0) or the G key (f or Function 1) toggles the PORT speed setting betw een these three modes: • AU TO • 1 Gbit/s • 2 Gbit/s Step 3.
Advanced User: Adjusting Default Firmware Settings 3-11 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. A: Mptutil The MPTUtil program identifies all LSI Logic host adapters in the system, and allows y ou to select which adapter to update.
3-12 Firmware Installation Procedure Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 3.5 T roub leshooting Some potential problems and their suggested solutions are as f ollows: The firmware and BIOS revisions typicall y must be in sync for proper operation.
2 Gbit/s Fibre Channel Host Adapters User’ s Guide 4-1 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Chapter 4 BIOS Features This chapter describes the Fibre Channel (FC) BIOS and Configuration Utility and includes the following sections: • Section 4.
4-2 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.1 LSI Logic Boot BIOS This section provides the f eatures, description, and installation of the LSI Logic FC boot BIOS.
Star ting the LSI Logic Boot BIOS Configuration Utility 4-3 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.2 Star ting the LSI Logic Boot BIOS Configuration Utility The LSI Logic boot BIOS allows y ou to change the default configuration of your host adapters , using the embedded BIOS Configuration Utility (CU).
4-4 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. ENTER, the FC Link bus is scanned and the Adapter Properties screen appears. On the Main menu, two selections are the Boot Adapter List and Global Proper ties menus.
Main Menu 4-5 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. current page bef ore new entries may be vie wed or modified. A pop-up confirmation window asks to store or discard changes, if needed.
4-6 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.4.5 Global Properties Menu The Global Proper ties menu allo ws you to pause if an aler t message has been displa yed, to vie w display boot inf or mation, and to set display and video modes.
OpenBoot BIOS 4-7 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. CTRL+E after memor y initialization during reboot. This allows y ou to re- enable and reconfigure.
4-8 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.7.2 Identifying the FC Devices The probe-scsi-all command identifies the FC de vices on your Fusion- MPT adapter . T o show all disks a vailab le from the OpenBoot prompt, use the probe-scsi-all command.
OpenBoot BIOS 4-9 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Target 4 Unit 0 Disk SEAGATE ST39173FC 6258 WWN 210000203710324a Port ID 73 /pci@8,700000/scsi@6 Target 6 Unit.
4-10 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. /upa@8,480000/SUNW,ffb@0,0 ... /pci@8,700000/IntraServer,fc@2 /pci@8,700000/IntraServer,fc@1,1 /pci@8,700000/IntraServer,fc@1 .
OpenBoot BIOS 4-11 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Y ou should use caution while issuing the follo wing commands because some commands (such as f orcing 1 Gbit/s operation on a 2 Gbit/s FC loop) could render the bus un usable.
4-12 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.7.4.3 show-children Command While you ha ve the host adapter or port selected, use the show-children command to displa y the devices currently connected to this adapter .
OpenBoot BIOS 4-13 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.7.5 Interrupt Coalescing The LSI Logic host adapters can complete multiple I/O requests per host interrupt. Interr upt coalescing is used to reduce CPU interrupts by pooling multiple disk command completions (I/O) into one interrupt.
4-14 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Interrupt coalescing timeout selected is 100 (256 decimal) microseconds Interrupt coalescing depth selected .
OpenBoot BIOS 4-15 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. ok show-link-speed Link speed selected is autobaud Current link speed is 1 Gbaud Note: The system must be pow er-cycled before the changes tak e eff ect. It is not sufficient to ex ecute the reset-all command.
4-16 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. Step 2. F rom the displa yed list, select a de vice to mar k persistent as shown in Figure 4.2 . Figure 4.2 Select Device Step 3. T ype ^Y (Ctrl-Y) to inser t disk name in the command line as shown in Figure 4.
OpenBoot BIOS 4-17 Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. 4.7.8 Manual Selection of FC T opology Under cer tain configurations , you ma y want to f orce the selection of FC topology and disable the auto detect mechanism in the FC adapter .
4-18 BIOS F eatures Copyright © 2002 - 2005 by LSI Logic Corporation. All rights reserved. ok 1 set-topology Topology selected is NL_Port Topology has been set Change will take effect after system po.
2 Gbit/s Fibre Channel Host Adapters User’ s Guide V er. 2.1 Cop yright © 2002 - 2005 by LSI Logic Cor poration. All rights reserved. Customer Feedbac k W e would appreciate your f eedback on this document. Please cop y the f ollowing page, add y our comments, and f ax it to us at the number shown.
Reader’ s Comments F ax your comments to: LSI Logic Cor poration T echnical Publications M/S E-198 F ax: 408.433.4333 Please tell us how y ou rate this document: 2 Gbit/s Fibre Channel Host Adapters User’ s Guide. Place a check mark in the appropr iate b lank for each categor y .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il LSI 7102XP-LC è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del LSI 7102XP-LC - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso LSI 7102XP-LC imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul LSI 7102XP-LC ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il LSI 7102XP-LC, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del LSI 7102XP-LC.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il LSI 7102XP-LC. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo LSI 7102XP-LC insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
