Manuale d’uso / di manutenzione del prodotto Netra 120 del fabbricante Sun Microsystems
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Sun Microsystems, Inc. 901 San Antonio Road P alo Alto , CA 94303 U .S.A. 650-960-1300 Send comments about this document to: docfeedbac k@sun.com Sun Fire ™ V120 and Netr a ™ 120 Ser v er User’ s Guide P ar t No .
Please Recycle Copyright 2001 Sun Microsystems, Inc., 901 San Antonio Road, Palo Alto, CA 94303-4900 U.S.A. All rights reserved. This product or document is distributed under licenses restricting its use, copying, distribution, and decompilation.
Contents iii Contents Part I Installation and Conf iguration 1. Introduction 1-1 1.1 Overview of the Sun Fire V120 and Netra 120 Servers 1-2 1.2 Contents of the Ship Kit 1-3 1.3 Optional Hardwar e and Software 1-5 1.4 Front Panel 1-6 1.5 Back Panel 1-7 1.
iv Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 3. Using DC Power 3-1 3.1 Grounding the Netra 120 Server 3-2 3.2 Assembling the DC Power Connectors 3-3 3.2.1 The Insulated Conductors Y ou Need to Use 3-3 3.2.2 Assembling the DC Input Power Cable 3-3 3.
Contents v 6. Connecting the Cables 6-1 6.1 Connecting the Cables to the Server 6-2 6.2 Using a Single DC Power Cord 6-4 6.3 Setting Up Serial Connections 6-4 6.3.1 Connecting to a T erminal Server 6-5 6.3.2 Using a DB-25 Adapter for Y our Serial Link 6-7 6.
vi Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.2.1 Powering the Server On or Down to Standby Mode 8-4 8.2.2 Displaying the lom> Prompt 8-4 8.2.3 Exiting From the lom> Pr ompt 8-5 8.2.4 Resetting the Server 8-5 8.2.5 Displaying the ok or kadb Prompt 8-6 8.
Contents vii 8.7 V iewing the Event Reports That the LOM Sends to syslogd 8-20 8.8 The LOM Shell Command List 8-21 8.9 Checking the Status of the Server ’s Fans 8-23 9. Managing the Server From the Solaris Prompt 9-1 9.1 Monitoring the System From Solaris 9-2 9.
viii Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 9.3.5 Making the LOM Interface Backward Compatible ( lom -B ) 9-13 9.3.6 Upgrading the LOM Firmware ( lom -G f ilename ) 9-13 Part III T roubleshooting and Maintenance 10. T roubleshooting 10-1 10.
Contents ix 1 1.9 Replacing Fan 3 1 1-21 Part IV Appendixes A. Installing and Removing a SCSI Hard Disk Drive with Solaris Running A-1 A.1 Installing a SCSI Hard Disk Drive W ith Solaris Running A-2 A.2 Removing a SCSI Hard Disk Drive W ith Solaris Running A-4 12.
x Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
xi Figur es FIGURE 1-1 The Sun Fire V120 Server 1-2 FIGURE 1-2 Contents of the Ship Kit 1-4 FIGURE 1-3 The Front Panel of the Sun Fire V120 and Netra 120 Servers 1-6 FIGURE 1-4 The Back Panel of the S.
xii Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 4-6 Installing Memory into a Socket on the System Board 4-10 FIGURE 4-7 The Rotating Retention Bracket and the Position o.
Figures xiii FIGURE 8-3 Sample LOM Device Event Log (Oldest Event Reported First) 8-10 FIGURE 8-4 Locations of Fans 1, 2, 3, and 4 8-23 FIGURE 9-1 Sample LOM Device Event Log (Oldest Event Reported Fi.
xiv Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
xv T ables T ABLE 1-1 Contents of the Ship Kit 1-3 T ABLE 1-2 Customer-Installable Hardware and Software 1-5 T ABLE 2-1 Operating Power Limits and Ranges for Sun Fire V120 and Netra 120 Servers 2-2 T .
xvi Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
xvii Pr eface The Sun Fire V120 and Netra 120 Server User ’ s Guide describes how to install, manage, and maintain the Sun Fire TM V120 and Netra TM 120 servers. The manual is intended for system administrators who have experience in setting up networked Solaris TM servers.
xviii Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 Part II Remote and Local Management Chapter 8 describes how to use the Lights-Out Management (LOM) shell to power the server on and off or r eset it remotely .
Pref ace xix T ypographic Conventions Shell Pr ompts T ypeface Meaning Examples AaBbCc123 The names of commands, files, and directories; on-scr een computer output Edit your .
xx Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 Related Documentation Accessing Sun Documentation Online A selection of Sun sytem documentation is located at: ■ http://www.sun.com/products-n-solutions/hardware/docs A complete set of Solaris documentation and many other titles are located at: ■ http://docs.
Pref ace xxi Safety Pr ecautions For your protection, observe the following safety precautions when setting up your equipment: ■ Follow all cautions and instructions marked on the equipment. ■ Never push objects of any kind through openings in the equipment.
xxii Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
PART I Installation and Conf iguration.
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1-1 CHAPTER 1 Intr oduction This chapter lists the features of the Sun Fir e V120 and Netra 120 servers, the contents of the ship kit, and the optional hardware and softwar e that is available for them.
1-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1.1 Overview of the Sun Fir e V120 and Netra 120 Servers FIGURE 1-1 The Sun Fir e V120 Server The Sun Fire TM V120 and Netra TM 120 servers are single-pr ocessor , thin (1U) servers designed primarily for use by telecommunications carriers and internet service providers.
Chapter 1 Introduction 1-3 ■ Second RJ-45 serial port ■ Optional DVD or CD-ROM drive ■ Support for up to two low-prof ile, 3.5-inch Fast-40 (Ultra2SCSI) disks ■ Support for up to two USB connections ■ External Fast-40 (Ultra2SCSI) Multimode 68-pin port These servers are designed to be rackmounted.
1-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 1-2 Contents of the Ship Kit.
Chapter 1 Introduction 1-5 1.3 Optional Har dwar e and Softwar e T ABLE 1-2 lists the customer-installable hardwar e components and software packages that are available for the Sun Fir e V120 and Netra 120 servers. T o order any of these options, contact your local Sun sales repr esentative.
1-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1.4 Fr ont Panel The illustration below shows the location of the Power and Fault LEDs, and the DVD-ROM drive bay .
Chapter 1 Introduction 1-7 1.5 Back Panel FIGURE 1-4 shows the components on the Sun Fire V120 server ’s back panel. FIGURE 1-4 The Back Panel of the Sun Fir e V120 Server FIGURE 1-5 shows the components on the Netra 120 server ’s back panel.
1-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1.6 The Fans Inside the Sun Fir e V120 and Netra 120 Servers The Sun Fire V120 and Netra 120 servers contain four fans. These ar e monitored by the LOM device, so you can use the Lights-Out Management (LOM) commands to check their status.
Chapter 1 Introduction 1-9 1.8 Envir onmental Specif ications This section gives storage, operating and environmental compliance information. 1.8.1 T olerance of Envir onmental Conditions Y ou can ope.
1-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1.9 Choosing Between a Rack and a Cabinet Y ou can install the Sun Fire V120 or Netra 120 server in either a rack or a cabinet.
2-1 CHAPTER 2 Power and Cooling This chapter contains information about the power consumption of the Sun Fire V120 and Netra 120 servers. It also tells you how to estimate the amount of heat that your cooling system must dissipate. The chapter contains the following sections: ■ Section 2.
2-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 2.1 Operating Power Limits and Ranges The table below gives operating and power information for the Sun Fire V120 and Netra 120 servers. * For both servers, the in-rush curr ent decays to the normal operating current in less than 200 milliseconds.
Chapter 2 P ower and Cooling 2-3 2.2 Power Consumption T o estimate the total power consumption for several Sun Fire V120 or Netra 120 servers installed in a single rack or cabinet, add together the individual power requir ement figur es for each of the systems that you have installed (see T ABLE 2-2 ).
2-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 2.3 Estimating Heat Dissipation T o estimate the amount of heat generated by a Sun Fire V120 or Netra 120 server so that you can estimate the heat your cooling system must dissipate (see Section 2.
3-1 CHAPTER 3 Using DC Power This chapter applies only to the Netra 120 server . If you have purchased a Sun Fire V120 server , skip this chapter and go to Chapter 4. This chapter provides information on gr ounding a Netra 120 server and on assembling the DC power connectors.
3-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 3.1 Gr ounding the Netra 120 Server The two M5 grounding studs on the server ’s back panel ar e the recommended safety grounding point (see FIGURE 3-1 ). However , an alternative grounding point is provided by the middle pin of the W AGO connector .
Chapter 3 Using DC P ower 3-3 3.2 Assembling the DC Power Connectors The Netra 120 server has a dedicated connector kit; this section explains how to use it. 3.2.1 The Insulated Conductors Y ou Need to Use The insulated conductors you use must have the following characteristics: ■ Material: tinned copper (multistranded) ■ Size: 12 A WG (2.
3-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 ■ –48V Supply ■ PSU Ground ■ –48V Return 5. Strip 0.31 inches (8 mm) of insulation from each of the wires coming from the DC power source (see FIGURE 3-2 ). Do not strip more than 0.
Chapter 3 Using DC P ower 3-5 6. Insert the tip of the cage clamp operating lever into the rectangular hole directly above the hole in the DC connector where you want to insert the f irst wire. Then press down on the cage clamp operating lever (see FIGURE 3-3 ).
3-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 3-4 Opening the DC Connector Cage Clamp (Scr ewdriver Method) 7. Feed the exposed section of the appropriate wire into that hole in the DC connector . FIGURE 3-5 shows which wires should be inserted into each hole in the DC connector .
Chapter 3 Using DC P ower 3-7 3.2.3 Installing the Strain Relief Housings 1. Insert the bottom portion of the strain relief housing into the notch on the DC connector until it snaps into place (see FIGURE 3-6 ).
3-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 3-7 Routing the W ires Out of the Strain Relief Housing 3. Insert the tie wrap into the bottom portion of the strain relief housing (see FIGURE 3-8 ). FIGURE 3-8 Securing the W ires to the Strain Relief Housing 4.
Chapter 3 Using DC P ower 3-9 FIGURE 3-9 Assembling the Strain Relief Housing What’ s Next? The DC input power cables for your server are now completely assembled.
3-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
4-1 CHAPTER 4 Installing Optional Har dwar e Components If you do not want to install any optional hardwar e components, skip this chapter and go straight to Chapter 5, which tells you how to install the Sun Fire V120 and Netra 120 servers into a rack.
4-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 4.1 Installing and Removing Hot-Pluggable SCSI Har d Disk Drives Note – The server and Hard Disk Drives contain electr onic parts that are extr emely sensitive to static electricity .
Chapter 4 Installing Optional Hardware Components 4-3 4. Replace the grilles and front bezel. 5. If you have just installed a Hard Disk Drive and you have Solaris running, you must now perform the steps in Section A.1, “Installing a SCSI Hard Disk Drive W ith Solaris Running” on page A-2.
4-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 4.2 Opening the Server Caution – The server contains electronic parts that ar e extremely sensitive to static electricity . Do not touch any metal parts. Place the server on top of a grounded electrostatic dischar ge (ESD) pad.
Chapter 4 Installing Optional Hardware Components 4-5 1. If your server is new and you have just removed it from its packaging, go straight to Step 3. If your server is currently in use, but you need to open it to install or replace a hardwar e component, then: a.
4-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 4.3 Identifying Server Components FIGURE 4-4 Components of the Sun Fir e V120 and Netra 120 Servers The major components of the Sun Fire V120 and Netra 120 servers, and the location of each component, are shown below , in FIGURE 4-4 : 1.
Chapter 4 Installing Optional Hardware Components 4-7 4.4 Installing and Removing a DVD or CD-ROM Drive Caution – Follow the instructions in this section carefully .
4-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 5. Carefully insert the DVD or CD-ROM drive into the chassis (see FIGURE 4-5 ).
Chapter 4 Installing Optional Hardware Components 4-9 4.4.2 Removing a DVD or CD-ROM Drive 1. Remove the top cover by following the procedure described in Section 4.2, “Opening the Server” on page 4-4. Make sure you disconnect all power cables and wear an antistatic wrist strap.
4-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 3. Replace the server ’ s cover and tighten the captive screw (see FIGURE 4-9 in Section 4.7, “Replacing the Server ’ s T op Cover” on page 4-14). FIGURE 4-6 Installing Memory into a Socket on the System Boar d Note – There ar e four DIMM slots.
Chapter 4 Installing Optional Hardware Components 4-11 4.6 Installing and Removing a PCI Car d For a list of the PCI cards available fr om your local Sun Sales representative, see “Optional Hardwar e and Software” on page 1-5.
4-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 4-7 The Rotating Retention Bracket and the Position of a PCI Car d PCI connector Metal tab.
Chapter 4 Installing Optional Hardware Components 4-13 6. Slide the PCI card retainer into a position at the back of the PCI card to prevent excessive f lexing of the board (see FIGURE 4-8 ).
4-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 4.6.2 Removing a PCI Car d 1. Remove the top cover by following the procedure described in “Opening the Server” on page 4-4. Make sure you wear an antistatic wrist strap and that you disconnect all power cables.
Chapter 4 Installing Optional Hardware Components 4-15 FIGURE 4-9 Replacing the T op Cover What’ s Next? When you have installed the optional hardware components you need, go to Chapter 5 for information about installing the Sun Fire V120 and Netra 120 servers into a rack.
4-16 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
5-1 CHAPTER 5 Installing the Server Into a Rack This chapter tells you how to install a Sun Fire V120 or Netra 120 server into a rack. The chapter contains the following sections: ■ Section 5.1, “Installing Into a 19-Inch Four-Post Rack” on page 5-2 ■ Section 5.
5-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 5.1 Installing Into a 19-Inch Four -Post Rack 5.1.1 The 19-Inch Rackmounting Kit The mounting slides can each be used on either side of the rack. The parts required are listed in T ABLE 5-1 .
Chapter 5 Installing the Ser ver Into a Rack 5-3 5.1.2 Assembling the Slides and Mounting the Server 1. Position the two parts of the slide so that the double-angled ear (A) is in the correct position for the rack you are installing into.
5-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 2. Loosely screw the two parts of the slide mounts together , using the M4 nuts supplied.
Chapter 5 Installing the Ser ver Into a Rack 5-5 FIGURE 5-4 Fastening the Slide Mounts to a Sun StorEdge 72-inch T all Rack–Rear V iew (Side Panels Removed for Clarity).
5-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 5-5 Fastening the Slide Mounts to a Sun StorEdge 72-inch Expansion Rack–Fr ont V iew (Side Panels Removed for Clarity).
Chapter 5 Installing the Ser ver Into a Rack 5-7 FIGURE 5-6 Fastening the Slide Mounts to a Standar d 19-inch Rack 7. Slide the server into the rack (see FIGURE 5-7 ).
5-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 5-7 Sliding the Server Into a Standar d 19-Inch Rack.
Chapter 5 Installing the Ser ver Into a Rack 5-9 8. Align the server so that the thumbscrews on its sides f it into the slide mounts in the rack (see FIGURE 5-8 ). If necessary , readjust the slide mounts so that the server aligns correctly . This job is easier with the thumbscrews done up f inger-tight.
5-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 5.1.3 Fitting the Cable Management Bracket ● Hook the bracket over the slide mounts at the rear of the server (see FIGURE 5-9 ). Y ou can use the loops in the bracket to secure the cables with cable ties.
Chapter 5 Installing the Ser ver Into a Rack 5-11 5.1.4 T ips for Using a Sun StorEdge 72-inch Rack ■ For maximum stability , fill the rack from the bottom up and leave at least 4U of space free at the top.
5-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 5.2 Installing Into a T wo-Post Relay Rack 5.2.1 The Fixed Mounting Bracket Kit The parts you requir e are listed in T ABLE 5-2 . 5.2.2 Attaching the Fixed-Mounting Brackets 1. Remove the thumbscrew rackmounting brackets from either side of the server (see FIGURE 5-10 ).
Chapter 5 Installing the Ser ver Into a Rack 5-13 2. Remove the f irst, third, and fourth screws from the plastic slide-mounts on the sides of the server (see FIGURE 5-1 1 ). 3. Fit the front brackets to the second and third of the tapped holes along the side of the server (counting from the front of the server towards the rear).
5-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 5-12 The Server Installed in a T wo-Post Rack What’ s Next? When you have installed the server into the rack, go to Chapter 6 for information about connecting the cables and setting up serial connections.
6-1 CHAPTER 6 Connecting the Cables This chapter describes how to connect the power cables and the Ethernet and serial cables to the Sun Fire V120 and Netra 120 servers.
6-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 6.1 Connecting the Cables to the Server FIGURE 6-1 Connecting the Cables to the Sun Fir e V120 Server FIGURE 6-2 Connecting the .
Chapter 6 Connecting the Cables 6-3 Before following the instructions in this section, make sure you have installed the server into a rack or cabinet (see Chapter 5). 1. Connect the power cord or cords. 2. Connect the server to at least one Ethernet hub.
6-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 6.2 Using a Single DC Power Cor d If you are using a Netra 120 server and you have only one DC power cor d connected to the server , the LOM generates a power-on event, but it also generates an inlet failure event and causes the fault indicator to be lit and to r emain lit.
Chapter 6 Connecting the Cables 6-5 Note – Do not use the Serial A/LOM port for binary data transfers. T o perform anything other than ASCII transfers, use the port labeled Serial B. 6.3.1 Connecting to a T erminal Server The serial ports on the Sun Fire V120 and Netra 120 servers ar e DTE ports.
6-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 Note – When the Sun Fire V120 and Netra 120 servers ar e viewed from the r ear , pin 1 of the RJ-45 serial port is on the left, and pin 8 is on the right.
Chapter 6 Connecting the Cables 6-7 6.3.2 Using a DB-25 Adapter for Y our Serial Link The pinouts are identical for both of the RJ-45 serial ports on the r ear panel of your server .
6-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 6.3.3 Using a DB-9 Adapter for Y our Serial Link T o connect to a terminal that has a 9-pin serial connector , connect one of the Sun Fire V120 or Netra 120 server ’s serial ports to a DB-9 (9-pin) adapter that performs the pin inter-connections listed in T ABLE 6-3 .
Chapter 6 Connecting the Cables 6-9 6.3.4 Settings for the Serial Connections The settings you need to use for a serial connection are listed in T ABLE 6-4 . If you need to perform binary data transfers (that is, transfers of anything other than simple ASCII character streams), use the Serial B port.
6-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 6.4 Connecting to Y our Server Fr om a Laptop Running Micr osoft W indows 6.4.1 Connecting the Sun Fir e V120 or Netra 120 Server to the Laptop Note – Do not attempt to use the laptop’s (25-pin) parallel port instead of its serial port.
Chapter 6 Connecting the Cables 6-11 3. Next connect the 25-way D-type male connector to an adapter that has one 25-way female connector and one 9-way D-type female connector . Sun does not supply a 25x9-way D-type female-to-female adapter . However , adapters like this are available fr om home computer suppliers and electronics stores.
6-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 3. In the Connection Description window , specify a name for the HyperT erminal connection you are creating on the laptop. Then select an icon for it and click OK. 4. In the Connect to.
7-1 CHAPTER 7 Powering On the Sun Fir e V120 or Netra 120 Server This chapter tells you how to connect to and power on the Sun Fire V120 or Netra 120 server . The chapter contains the following sections: ■ Section 7.1, “Preparing to Configur e the Server” on page 7-2 ■ Section 7.
7-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 7.1 Pr eparing to Conf igure the Server T o perform the initial configuration of the Sun Fire V120 or Netra 120 server , set up a serial connection using the port labeled Serial A/LOM on the server ’s back panel (see Chapter 6).
Chapter 7 P owering On the Sun Fire V120 or Netra 120 Ser ver 7-3 For information about dedicating the console to Serial B, see Section 8.6, “Separating the LOM From the Console on the Serial A/LOM Port” on page 8-19).
7-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 5. Specify whether you need IPv6 enabled, then follow the instructions on the screen. 6. Specify whether you want to to enable the Kerberos Security mechanism, then follow the instructions on the screen.
Chapter 7 P owering On the Sun Fire V120 or Netra 120 Ser ver 7-5 9. If prompted, specify the IP address for the system. The system prompts you for this addr ess if you declined to use DHCP in Step 6. It also asks you whether the server is to be part of a subnet, and if you answer Y es it prompts you to pr ovide the netmask of the subnet.
7-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 4. When prompted, specify the type of terminal you are using to communicate with the server . 5. When prompted to indicate whether you want the server to be networked, specify No.
Chapter 7 P owering On the Sun Fire V120 or Netra 120 Ser ver 7-7 7.3 Using the Power (On/Standby) Switch Caution – The power switch (on the rear panel of the Sun Fir e V120 and Netra 120 servers) is not an On/Off switch, it is an On/Standby switch.
7-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 What’ s Next? When you have powered on the server and booted and logged in, your server is ready to use. For information about managing the server , see Chapter 8 and Chapter 9.
PART II Remote and Local Management.
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8-1 CHAPTER 8 Managing the Server Fr om the lom> Pr ompt This chapter introduces the LOM Lights-Out Management facilities available for the Sun Fire V120 and Netra 120 servers and tells you how to use the /usr/sbin/lom utility which provides a user interface to the device.
8-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.1 Intr oduction to Lights-Out Management The system board in the Sun Fir e V120 and Netra 120 servers contains a LOM device (see FIGURE 8-1 ). This device provides management facilities that enable you to detect and respond quickly to pr oblems.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-3 Note – The Sun Fire V120 and Netra 120 servers ar e supplied with the Solaris operating environment installed and with the supplementary Lights-Out Management (LOM) software described in this chapter and Chapter 9 also installed.
8-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.2.1 Powering the Server On or Down to Standby Mode If the server you are connected to is not power ed on but is connected to mains electricity , you will see the lom> prompt at your terminal.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-5 8.2.3 Exiting Fr om the lom> Prompt ● T o return to the Solaris console prompt from the lom> prompt, type: Note – If you have the Serial A/LOM port dedicated to the LOM device (instead of shared between the LOM and the console), this command will have no ef fect.
8-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.2.5 Displaying the ok or kadb Pr ompt T o display the ok or kadb prompt, type the following at the lom> prompt: Note – If you have the Serial A/LOM port dedicated to the LOM device, this command will have no effect.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-7 8.2.6.1 Boot Modes A vailable If you use the bootmode command without arguments, the LOM device r eports just the current boot mode. The boot modes available ar e listed in T ABLE 8-1 . T ABLE 8-1 Boot Modes Mode Description -u This option does not repr esent a boot mode.
8-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.3 Monitoring the Server Fr om the LOM Shell This section describes the commands that enable you to check the status of the components monitored by the LOM device. It also describes how to view the events stored in the LOM device’s event log.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-9 Note – If the fans, PSU output, or supply rails fail on your server , you may need to replace components. For information about ordering and installing f ield-replaceable components, see Chapter 1 1.
8-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.3.3 V iewing the LOM Device’s Event Log 8.3.3.1 V iewing the Last 10 Events in the Event Log T ype the following: FIGURE 8-3 shows a sample event log display . The eventlog command reports the last 10 events.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-11 8.3.3.2 V iewing the Entire Event Log ● T ype: where x is the number of lines you want the scr een to pause after displaying, and y is the severity level of the events you want to see. By default, the loghistory command displays all the events in the log and does not pause the display .
8-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.3.3.4 V iewing All Events From the Last One Logged to n th Event Befor e It ● T ype: where n is the number of events you wa.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-13 8.4 Setting Up LOM Privileges for Named Users Y ou can specify up to four named users of the LOM device on a Sun Fire V120 or Netra 120 server . By default no users are set up and therefor e no user login prompt appears when you use the LOM escape sequence.
8-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.4.2 Cr eating a LOM User Account ● T ype: where the user name is up to eight characters long, begins with an alphabetic character and contains at least one lower-case alphabetic character .
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-15 8.4.4 V iewing Details of a LOM User Account ● T ype: where the user name is the name of an existing LOM user account. Note – Y ou must have User Administration ( u -level) authorization to view the details of a LOM user account (see Section 8.
8-16 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 If you delete all the users you have set up, you will no longer see the login pr ompt when you go to the lom> prompt. 8.4.7 Specifying Permissions for a Named User By default, all four levels of permission are available to each named user you set up.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-17 8.4.8 Quitting a LOM Named User Session ● T ype: This returns you to the LOM login pr ompt. 8.5 Setting the LOM Device’s Conf igurable V ariables There ar e some variables that you can use as arguments to the set command in the LOM shell.
8-18 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 8.5.3 Setting the alarmon n Softwar e Flag ● Set the alarmon n variable by typing: where n is the number of the alarm you want to turn on: 1, 2, or 3.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-19 8.6 Separating the LOM Fr om the Console on the Serial A/LOM Port By default, the LOM device shares the Serial A/LOM port with the console, and when it has an event report to send it takes control of the Serial A/LOM port itself, interrupting any console activity you are performing.
8-20 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 The Serial B port (ttyb) is now your console port. The Serial A/LOM port r emains in the control of the LOM device. 8.6.2 Sharing Serial A/LOM Between the LOM and the Console By default, the Serial A/LOM port is shared by the LOM device and the console.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-21 In this file the r eports are displayed with a label identifying them as lom reports and indicating their severity . The dif ferent levels of severity are, in descending or der: 1. Fatal These events might concern, for example, exceeded temperature thr esholds or supply rail failures.
8-22 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 check Resets monitoring to report all failur es. If a monitored component has failed, the LOM device will not continue to report the same failur e. T o check the status of the component, for example, after attempting to f ix it, issue the check command.
Chapter 8 Managing the Ser ver F rom the lom> Prompt 8-23 8.9 Checking the Status of the Server ’s Fans Event reports about the fans inside the server include the number of the fan to which they relate. Fans 1 and 2 expel hot air fr om the server; Fan 3 cools the CPU.
8-24 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
9-1 CHAPTER 9 Managing the Server Fr om the Solaris Pr ompt This chapter tells you how to use the LOM-specific commands available in the Solaris operating environment for monitoring and managing a Sun Fire V120 or Netra 120 server . For an introduction to the LOM device and a description of an alternative user interface to it, see Chapter 8.
9-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 9.1 Monitoring the System Fr om Solaris T o use the Lights-Out Management (LOM) facilities either remotely or locally , you need a terminal connection to the Serial A/LOM port on the server (see Chapter 6).
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-3 Note – If there ar e any failures of the PSU that af fect more than just the input or output lines, Solaris will not run. However , if standby power is present, you can still use the LOM shell commands described in Chapter 8.
9-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 ● T o check the status of the supply rails and internal circuit breakers, type: 9.
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-5 9.1.6 Checking the Status of the Fault LED and Alarms ( lom -l ) ● T o check whether the Fault LED and alarms are on or off, type: Alarms 1, 2, and 3 are softwar e flags.
9-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 ● T o conf igure the LOM device to perform an automatic server restart (ASR) after a lockup, you must enable the Hardware reset option as well as the Watchdog option. For information about how to do this, see Section 9.
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-7 9.1.10 V iewing the Event Log ( lom -e ) ● T o see the event log, type: where n is the number of r eports (up to 128) that you want to see and x specifies the level of reports you ar e interested in.
9-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 9.2 Conf iguring Automatic Server Restart (ASR) Y ou can configur e the LOM device to restart the server automatically after a lockup. The LOM device has a watchdog process that, by default, expects to be patted every 10,000 milliseconds.
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-9 9.2.2 Enabling the LOM W atchdog Pr ocess From Y our Own Script or Command ( lom -W on ) Note – Y ou do not normally need to do this. If you want to configur e the LOM device to perform an automatic server restart after a lockup, see Section 9.
9-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 Note – Unless you include the lom -W on and -R on options in a script file, you will need to execute the lom command every time you reboot the system. (That is, if you want to use the automatic server restart facility .
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-11 9.3 Other LOM T asks Y ou Can Perform Fr om Solaris This section tells you how to turn the alarms and Fault LEDs on and off by using the lom command.
9-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 ● T o turn the Fault LED off again, type: 9.3.3 Changing the First Character of the Sequence for Escaping to the lom> Pr ompt ( lom -X ) The character sequence #. (hash, dot) enables you to escape from Solaris to the lom> prompt.
Chapter 9 Managing the Ser ver F rom the Solar is Prompt 9-13 By default, the Serial A/LOM port is shared by the console and the LOM device. The LOM interrupts the console whenever it needs to send an event report. T o prevent the LOM from interrupting the console on Serial A/LOM, turn serial event reporting off.
9-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
PART III T r oubleshooting and Maintenance.
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10-1 CHAPTER 10 T r oubleshooting This chapter provides intr oductory information on the diagnostics tools available for the Sun Fire V120 and Netra 120 servers. It also lists some pr oblems that you might encounter when setting up or using a Sun Fire V120 or Netra 120 server and tells you how to solve them.
10-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 10.1 Intr oduction to the POST , obdiag , and SunVTS Diagnostic T ools The following diagnostic tools are available for the Sun.
Chapter 10 T roub leshooting 10-3 The system will now run POST diagnostics and display status and error messages in your console window . If POST detects an error , it displays an error message describing the failure. A sample err or message is shown below: 4.
10-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 The tests are described in T ABLE 10-1 . Note the number that corresponds to the test you want to perform, and use it with the test command. For example, to test the primary Ethernet port, type: 3.
Chapter 10 T roub leshooting 10-5 Note – If you have a PCI card installed in the server , then additional tests will appear on the obdiag menu. 10.1.
10-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 10.1.3.1 T o Find Out If SunVTS is Installed ● T ype: If SunVTS software is loaded, information about the package will be displayed. If SunVTS software is not loaded, you will see the following error message: 10.
Chapter 10 T roub leshooting 10-7 ■ SunVTS T est Reference Manual provides details about each individual SunVTS test. 10.1.3.4 Using the SunVTS Graphical User Interface T o test the Sun Fire V120 or Netra 120 server by r unning a SunVTS session from a workstation using the SunVTS graphical user interface, follow the procedure below .
10-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 10.2 Additional Diagnostic T ests for Specif ic Devices 10.2.1 Using the probe-scsi Command T o Confirm That Har d Disk Drives Are Active The probe-scsi command transmits an inquiry to SCSI devices connected to the system’s internal SCSI interface.
Chapter 10 T roub leshooting 10-9 10.2.2 Using the probe-ide Command T o Confirm That the DVD or CD-ROM Drive is Connected The probe-ide command transmits an inquiry command to internal and external IDE devices connected to the system’s on-board IDE interface.
10-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 Start the watch-net diagnostic test by typing the watch-net command at the ok prompt.
Chapter 10 T roub leshooting 10-11 Problem: Cannot Display the lom> Prompt Using the “#.” Escape Sequence Check whether the first character of the “#.
10-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 10.4 Interpr eting the Fr ont and Back Panel LEDs The Sun Fire V120 and Netra 120 servers each contain two fr ont panel LEDs: ■ A Power LED (see FIGURE 10-7 ) This LED is lit when the server is powered on.
Chapter 10 T roub leshooting 10-13 FIGURE 10-7 Front Panel Power and Fault LEDs The server contains four rear panel LEDs (see FIGURE 10-8 ): ■ A Power LED This replicates the Power LED on the fr ont panel. ■ A Fault LED This replicates the Fault LED on the fr ont panel.
10-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
11-1 CHAPTER 11 Replacing a Server or Replacing Individual Components If you ever need to replace an entir e Sun Fire V120 or Netra 120 server , this chapter describes how to transfer the old server .
11-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1 1.1 Replacing a Server The Sun Fire V120 and Netra 120 servers contain a memory card (accessible by removing the unit’s fr ont bezel) called the System Configuration Car d.
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-3 Caution – Do not handle the System Configuration Car d unless you need to transfer it to another system. If you need to handle it for this reason, avoid contact with the gold terminals on the underside of the card.
11-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1 1.2 Field Replaceable Units Note – The procedur es in this chapter for replacing faulty components are for the attention of qualified service engineers only .
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-5 1 1.3 Replacing the Memory Car d Reader for the System Conf iguration Card Caution – The procedur e below is for the attention of qualified service engineers only .
11-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 11-2 Removing the System Configuration Car d Reader Card reader’ s cable connector.
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-7 1 1.4 Replacing the DVD or CD-ROM Drive, Cable, and Paddleboar d Caution – The procedur e below is for the attention of qualified service engineers only .
11-8 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 9. Reconnect the memory card reader board’ s power cable to its connector on the system board. 10. Insert the new DVD or CD-ROM drive (see Section 4.4.1, “Installing a DVD or CD-ROM Drive” on page 4-7).
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-9 1 1.5 Replacing the NVRAM Chip Caution – The procedur e below is for the attention of qualified service engineers only . Before touching or replacing any components inside the server , disconnect all cables and follow the instructions in Section 4.
11-10 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 2. Open the server by following the instructions in Section 4.2, “Opening the Server” on page 4-4).
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-11 5. When you have reconnected the cables and powered the server on, type the following at the ok prompt, using the values you noted in Step 1: FIGURE 11-5 Replacing the NVRAM Chip 6.
11-12 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 1 1.6 Replacing the System Boar d Caution – The procedur e below is for the attention of qualified service engineers only . Before touching or replacing any components inside the server , disconnect all cables and follow the instructions in Section 4.
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-13 8. Unplug the power cable for Fan 3 (see FIGURE 1 1-6 ) and undo the two screws that fasten the ducting assembly to the chassis. FIGURE 11-6 Unplugging and Removing the Fan 3 Assembly 9.
11-14 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 11-7 The System Board SCSI pillars System board protection/ suppor t bloc k Alignment stand-off.
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-15 1 1.6.2 Installing the New System Boar d Note – The system board contains a jumper (JP8) that identifies the har dware to the system software as either a Sun Fir e V120 or a Netra 120.
11-16 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 10. Replace the Fan 3 assembly by screwing the ducting back into the chassis and connecting the fan’ s power cable into the connector on the new system board (see FIGURE 1 1-8 ).
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-17 1 1.7 Replacing the Power Supply Unit Caution – The procedur e below is for the attention of qualified service engineers only . Before touching or replacing any components inside the server , disconnect all cables and follow the instructions in Section 4.
11-18 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 11-9 Replacing the Power Supply Unit Step 2 Step 3 Step 5.
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-19 1 1.8 Replacing the Rear Fan Subassembly (Fans 1 and 2) Caution – The procedur e below is for the attention of qualified service engineers only . Before touching or replacing any components inside the server , disconnect all cables and follow the instructions in Section 4.
11-20 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE 11-10 Replacing the Rear Fan Subassembly (Fans 1 and 2).
Chapter 11 Replacing a Ser ver or Replacing Individual Components 11-21 1 1.9 Replacing Fan 3 Caution – The procedur e below is for the attention of qualified service engineers only . Before touching or replacing any components inside the server , disconnect all cables and follow the instructions in Section 4.
11-22 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 3. T ake the fan between your foref inger and thumb and lift it out of its cradle. 4. T ake the new fan and position it into the fan’ s cradle. 5. Connect the new fan’ s power cable to its connector on the system board.
PART IV Appendixes.
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A-1 APPENDIX A Installing and Removing a SCSI Har d Disk Drive with Solaris Running This appendix contains the following sections: ■ Section A.1, “Installing a SCSI Hard Disk Drive W ith Solaris Running” on page A-2 ■ Section A.
A-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 A.1 Installing a SCSI Har d Disk Drive W ith Solaris Running Before performing the instructions in this section, install the Hard Disk Drive by following the instructions in Section 4.
Appendix A Installing and Removing a SCSI Hard Disk Drive with Solaris Running A-3 3. Connect the new disk logically to the Operating System by typing the following command, specifying the correct Ap_Id label for the disk you have installed (in this sample command the Ap_Id label is for Disk 1): 4.
A-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 A.2 Removing a SCSI Har d Disk Drive W ith Solaris Running If you are r emoving a Hard Disk Drive while the Operating System is still running, you must remove the drive logically fr om the Operating System before removing it physically .
Appendix A Installing and Removing a SCSI Hard Disk Drive with Solaris Running A-5 Note – Before pr oceeding, you must remove the Har d Disk Drive from all of its software mount positions and delete any swap areas in use on the disk. If the disk is the system’s boot device, do not proceed further with these instructions.
A-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
B-1 APPENDIX B Reinstalling the Solaris Operating Envir onment This appendix contains the following sections: ■ Section B.1, “Reinstalling Solaris” on page B-2 ■ Section B.
B-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 B.1 Reinstalling Solaris The Sun Fire V120 and Netra 120 servers ar e supplied with the Solaris operating environment pr einstalled.
C-1 APPENDIX C Conf iguring the LOM Device Driver This appendix describes the driver parameters you can set in the lom.conf configuration f ile. Some of these parameters are also configurable by means of the LOM-specific Solaris commands described in Chapter 9.
C-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 C.1 The LOM Device Driver The LOM driver software included in Solaris is as follows: ■ /platform/sun4u/kernel/drv/lom (the lom driver (32-bit)) ■ /platform/sun4u/kernel/drv/sparcv9/lom (the lom driver (64-bit)) ■ /platform/sun4u/kernel/drv/lom.
Appendix C Configuring the LOM Device Driver C-3 C.2 Conf iguring the LOM Device Driver The full list of parameters you can set in this file is given in T ABLE C-1 . T ABLE C-1 LOM Configuration File Parameters Field Format Default Effect wdog_reset= Boolean 0=F ALSE 1=TRUE 0 Causes the LOM to reset the server after a watchdog timeout.
C-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 disable_wdog_on_panic= Boolean 0=F ALSE 1=TRUE 1 Causes the LOM to try to disable its watchdog after a system panic.
Appendix C Configuring the LOM Device Driver C-5 Each parameter must be on a separate line and must befollowed by an equals sign ( = ) and a value, without spaces.
C-6 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001.
D-1 APPENDIX D System Boar d Jumper Settings This appendix describes the functions and factory-default settings of the jumpers on the system board of the Sun Fir e V120 and Netra 120 servers.
D-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 The Netra T1 server ’s system board contains several jumpers. W e do not recommend you change the jumper settings.
Appendix D System Board Jumper Settings D-3 JP15 1-2 (Open) This jumper is for use by Sun service engineers only . It enables and disables emergency r ecovery of the LOM firmwar e. In its default state (Open), recovery of the f irmware is not possible.
D-4 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001 FIGURE D-1 System Boar d Jumper Locations and Default Settings JP16 JP9 JP15 JP13 JP14 JP17 Pin 1 JP7 (setting f or 550MHz CPU) .
Index-1 Index A AC power warnings, 6-3 acoustic noise, 1-9 alarms checking the status of, 9-5 alarms, setting, 8-21, 9-1 1 altitude, 1-9 A TM cards (optional), 1-5 automatic server restart, 9-8 B back.
Index-2 Sun Fire V120 and Netra 120 Server User’ s Guide • December 2001 E earthquake tolerance, 1-9 electro-magnetic compatibility, 1-9 environment, 1-9 environmental compliance, 1-9 Ethernet con.
Index-3 log, viewing, 8-10 LOM device configuration variables, 8-17 separating from the console on Serial A, 8-19 sharing Serial A between the console and the LOM device, 8-20 upgrading firmware, 9-.
Index-4 Sun Fire V120 and Netra 120 Server User’ s Guide • December 2001 rear fan subassembly, 1 1-19 system board, 1 1-12 removing the server ’s top cover, 4 -4 resetting r emotely, 8-5 S safet.
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 Sun Microsystems Netra 120 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 Sun Microsystems Netra 120 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Sun Microsystems Netra 120 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Sun Microsystems Netra 120 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Sun Microsystems Netra 120, 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 Sun Microsystems Netra 120.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Sun Microsystems Netra 120. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Sun Microsystems Netra 120 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.
