Manuale d’uso / di manutenzione del prodotto BX620 del fabbricante Fujitsu
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101 E Before Reading This Manual Thank you for purchasing th e PRIME RGY 1Gbit/s Ethernet I/O Modu l e (hereinafter referred to as this product or the card). The card can be installed in the expansion card slot of the Fujitsu server blad e to configure the Local Area Network (LAN) system.
102 Remarks W arning Descriptions V arious symbols are used throughout this manual. These are pr ovided to emphasize important points for your safety and that of others. The s ymbols and their meanings are as follo ws. Make sure to fully understand these before reading this manua l.
103 E Abbreviations The following expressions and abbr evia tions are used to describe the product names used in this manual. Product names Expressions and abbreviations 1Gbit/s Ethernet I/O Module (P.
104 Safety For safe use of this product, it is vita l that the following warnings are heeded. Handling this product W ARNI NG CAUTION Recycle When scrapping this product, contact an of fice listed in "Appendix A Contact Informatio n" ( J pg.
105 E Contents 1 1 Gbit/s Ethernet I /O Module . . . . . . . . . . . . . . . . . . . . . . . . . 106 1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 1.2 S pecifications . . . . . . . . . . .
106 1 1 Gbit/s Ethernet I/O Module This chapter ex plains the featu res and specifications of this product. 1.1 Overview This product is an LAN expansion board exclusive to BX620 S3 Server Blade and BX620 S4 Server Blade. This product has 2 L AN controllers, and pr ovides LAN connection completely separate/ independent of the onboard LAN.
1 1 Gbit/s Ethernet I/O Module 107 E 1.3 F unctionality and F eatures 1.3.1 Functional Description This product is a new class of Gigabit Ethernet (GbE) conv erged networ k interface controller (C- NI.
108 • High-speed on -chip RISC processor • Up to 4 classes of service (CoS) • Integrated 96 KB frame buffer memory • Support for multicast addresses via 128 bits hashing hard ware function •.
1 1 Gbit/s Ethernet I/O Module 109 E 1.3.3 T eaming Function Broadcom Advanced Server Program (BSAP) Overview Broadcom Advanced Server Program (BASP) is the Broadcom teaming software fo r W indows Server 2003 and W indows 2000 Server operating sy stems.
110 Smart Load Balancing™ and Fa ilover Smart Load Balancing™ and Failover is the Broadcom implementation of load balancing based on IP flow . This fea ture supports bala ncing IP traffic across multiple adapters (team members) in a bidirectional manner .
1 1 Gbit/s Ethernet I/O Module 111 E SLB (Auto-Fallback Disable) The SLB (Auto-Fallback Disable) type of team is identical to the Smar t Load Balancing™ and Failover type of team, with the ex ceptio.
112 LiveLink ™ LiveLink™ is a feature of BASP that is availabl e only for the Smart Load Balancing™ type of teaming. The pu rpose of LiveLink is to detect lin k loss beyond the switch and to route traffic only through team members that have a live link.
1 1 Gbit/s Ethernet I/O Module 113 E • Example of Server s Supporting Multiple VLANs with T agging "• Example of Servers Supporti ng Multiple VLANs with T agging" ( J pg.1 13)" shows an example network that uses VLA Ns. In this example networ k, the physical LAN c onsists of a switch, two servers, and five clients.
114 ` VLAN tagging is on ly required to be enable d on switch po rts that create trunk links to other switches, or on ports connecte d to tag-capable end -stations, such as servers o r workst ations with Broadcom ad apters. Adding VLANs to T eams Each team supports up to 64 VLANs (63 tagged and 1 unta gged ).
2 Installing a 1Gbit/s Eth ernet I/O Module 115 E 2 Installing a 1Gbit/s Ethernet I/O Module This chapter explains the installation procedure in th e server blade. W ARNI NG CAUTION • When installing or r emoving thi s product, ma ke sure to remov e the server blade from the chassis.
116 2.1 Installing in a Server Blade ` T o conne ct a 1Gbit/ s Ethernet I/ O Module to the ext ernal LAN (dev ice), it is n ecessary to install a Switch B lade or GbE P ass-Thru Bla de to network blade slo t 3 or network blade slot 4 (NET3 or NET4) of the chassis.
2 Installing a 1Gbit/s Eth ernet I/O Module 117 E 4 Remove the top cover . → "7.2 Removing and Attaching the T op Co ver" in "Server Blade User's Guide" 5 Install the 1Gbit/s Et hernet I/O Module. Make sure the 1Gbit/s Ethernet I/O Module is securely on the slot.
118 3 Installing the LAN Driver This chapter exp lains how to i nstall the LAN driver . 3.1 Installing the Driver Software ` Get the LAN driver fr om the Ser verS tart CD-ROM i ncluded wit h the BX620 S4 serve r blade and install. If using a LAN driver , refer t o the operati on manual or hel p file incl uded with the d river .
4 Broadcom Gigabit Ethernet T eaming Services 119 E 4 Broadcom Gigabit Ethernet Te a m i n g S e r v i c e s This chapter explains th e technology and co nsiderations when working with the network teaming services.
120 PXE Preboot Execution Environment RAID Redundant Array of Inexpensive Disks Smart Load Balancing™ and Failover Switch-independent failover type o f team in which the primary team member handles all incoming and outg oing traf fic while the standby team member is idle until a failover eve nt (for example, loss of link occurs).
4 Broadcom Gigabit Ethernet T eaming Services 121 E 4.3 T eaming Concepts Storage devices use RAID technolo gy to group i ndividual hard drives. Switch ports can be grouped together using techno logies such as Cisc o Gigab it EtherChannel, IEEE 802.3ad Link Aggr egation, Bay Network Multilink T runking, and Extreme Ne twork Load Sharing.
122 For switch-independent teaming modes, all physical ad apters that make up a virtual adapter must use the unique MAC address assigned to them when transmitting data. That is, the frames that are sent by each of the physical adapters in the team must us e a unique MAC address to be IEEE compliant.
4 Broadcom Gigabit Ethernet T eaming Services 123 E Smart Load Balancing enables both transmit and receive load balancing based on the Layer 3/Layer 4 IP address and TCP/UDP por t number . In other words, the load balancing is not done at a byte or frame level but on a TCP/UDP session basis.
124 T ransmit traffic through a router will be load balanced as tran smit load bala ncing is based on the source and destination IP address and TCP/UDP por t number . Since routers do not alter the source and destination IP address, the load balancing algorithm works as intended.
4 Broadcom Gigabit Ethernet T eaming Services 125 E Generic T r unking Generic T runking is a switch-assisted teaming mode and requires configuring po rts at both ends of the link: server interfaces and switc h ports. This is often ref erred to as C isco Fast E therChannel o r Gigabit EtherChannel.
126 • Broadcom T eaming So ftware Component 4.3.4 Hardware Re quirements The various teaming modes describe d in this manual place certain re stric tions on the networking equipment used to connect clients to teamed systems. Each type of ne twork interconnect tech nology has an effect on teaming as describe d in the following sections.
4 Broadcom Gigabit Ethernet T eaming Services 127 E • Router A router is design ed to route network traffic based on Layer 3 or high er protocols, altho ugh it often also works as a Layer 2 device with switching capab ilities. The teaming of ports c onnected directly to a router is not supported.
128 Mixed media (adapters with different media) Ye s Ye s Y es (switch- dependent) – Mixed speed s (adapters that do not support a common speed(s), but can operate at diff erent speeds) Ye s Ye s N .
4 Broadcom Gigabit Ethernet T eaming Services 129 E 4.3.7 Selecting a T eam T ype The following f low chart provides the decision flow when planning for Layer 2 teaming. The primary rationale for teaming is the need for additional network bandwidth and fault tolerance.
130 4.4 T eaming Mechanisms 4.4.1 Architecture The Broadcom Ad vanced Server Program (BASP) is implemented as an NDI S intermediate driver (refer to "• T eaming Across Switche s W ithout an Interswitch Link" ( J pg.141)). It oper ates below protocol stacks such as TCP/IP and IPX and app ears as a virtual adapter .
4 Broadcom Gigabit Ethernet T eaming Services 131 E 4.4.2 Outbound T raffic Flow The Broadcom Intermediate Driver m anages the out boun d traffic flow for all teaming modes. For outbound traffic, every packet is first classifie d into a flow , and then distributed to the selec ted physical adapter for transmission.
132 On the inbound code path, the Inbound Flow Head Hash T able is also designed to allow concurrent access. The link lists of Inbound Flow Entries are only referenced in the event of processing A RP packets and the periodic load ba lancing. There is no per packet reference to the Inbound Flo w Entries.
4 Broadcom Gigabit Ethernet T eaming Services 133 E 4.4.5 Performance Modern network interface cards provide many ha rd ware featur es that reduce CPU utilization by offloading certain CPU intensive operations ( J "4.7 T eaming and Other Advanced Networking Properties"(pg.
134 • Applications The SLB algo rithm is most approp riate in home and small business environments where cost is a concern, or with commodity switching equipmen t. SLB teaming works with un managed Layer 2 switches and is a cost-effective way of getting re dundancy and link aggreg ation at the server.
4 Broadcom Gigabit Ethernet T eaming Services 135 E • Configuration Reco mmendations Static tru nking supports connectin g the teamed port s to s witches if they ar e on the same broadcast domain and support generic tr unking. It does not support connecting to a rou ter or Layer 3 switches since the ports must be on the same subnet.
136 4.6 Attributes of the Features Associated with Each T ype of T eam The attributes of the fea tures associated w ith ea ch type of team are summarized below .
4 Broadcom Gigabit Ethernet T eaming Services 137 E • Dynamic Trunking Speeds Supported for Each T ype of T eam The various link speeds that are supported for each ty pe of team are listed in "• Lin k Speeds in T eaming" ( J pg.137). Mixed speed refers to the capability of t eaming adapters that are running at different link speeds.
138 4.7 Te a m i n g a n d O t h e r A d vanced Networking Properties Before creating a team, adding or removing team members, or changing advanced settings of a te am member , make sure each team member has been co nfigured in a similar way . Settings to check include VLANs and QoS Packet T a gging, Jumbo Frames, and the vari ous offloads.
4 Broadcom Gigabit Ethernet T eaming Services 139 E Checksum Offload Checksum Off load is a property of the Broadcom network adapters that allows the TCP/IP/UDP checksums for send and receive tr affic to be calcul ated by the adapter hard ware rather than by the host CPU.
140 Preboot Execution Environm ent The Preboot Execution Env ironment (PXE) allows a system to boot from an operating system image over the network. By definition, PXE is invoked before an operating sy stem is loaded, so there is no opportunity for the BASP intermediate driver to load and enable a team.
4 Broadcom Gigabit Ethernet T eaming Services 141 E Furthermore, a failover event wo uld cause additiona l loss of connectivity . Consider a cable disconnect on the T op Switch port 4.
142 • T eaming Across Switches With Interconnect "• T eaming Across Switches With Interconnect" ( J pg.142) represents a failover event in which the cable is unplugged on the T op Switc h port 4. This is a successful fa ilover with all stations pinging each other without loss of connectivity .
4 Broadcom Gigabit Ethernet T eaming Services 143 E 4.8.3 Spanning T ree Algorithm In Ethernet networks, only one active path may ex ist betwee n any two bridges or switches. Multiple active paths between switches can cause loops in the network. Wh en loops occur , some switches recognize stations on both sides of the switch.
144 4.8.4 T opology Change Notice (TCN) A bridge/switch creates a forwarding table of MA C addresses and port numbers by learning the source MAC address that received on a particul ar port. The table is used to forward frames t o a specific port rather than flooding the fra me to all ports.
4 Broadcom Gigabit Ethernet T eaming Services 145 E 4.8.5 Port F ast/Edge Port T o reduce the effect of TCNs on the network (for example, increasing flooding on switch ports), end nodes that are powered on/off often should use the Port Fast or Edge Port setting on the switch port they are attached to.
146 4.8.9 SLB T eams SLB teams are the only teaming type not dependant on switch configur ation. The server intermediate driver handles the load balancing and fault tolerance mechanisms with no assistance from the switch.
4 Broadcom Gigabit Ethernet T eaming Services 147 E 4.8.10 T roubleshooting T eaming Problems When running a protocol analyzer over a virtual ad apter teamed interface, th e MAC addres s shown in the transmitted frames may not be co rrect.
148 T roubleshooting Guidelines Before you call for su pport, make sure you have completed the followin g steps for troubleshooting network connectivity proble ms when the server is using adapter teaming. • Make sure the link light is ON for ever y adapter and all the cables are atta ched.
4 Broadcom Gigabit Ethernet T eaming Services 149 E Can I connect the teamed adapte rs to a hub? T eamed ports can be connected to a hub for troubleshooting pu rposes only . However , this practice is not recommended for normal operation because the performance would be degraded due to hub limitations.
150 Can I configure NLB an d teaming concurrently? Y es, but only when running NLB in a multicast mode (NLB is not supported with MS Cluster Services).
4 Broadcom Gigabit Ethernet T eaming Services 151 E 4.9 Event Log Messages 4.9.1 Windows System Event Log messages The known base and intermediate W indows System Event Log status messages for this product are listed in "4.9.2 Base Driver (Physical Adapter/Miniport)" ( J pg .
152 7 Network controller configured for 10Mb f ull- duplex link. The adapter has been manually conf igured fo r the selected line speed and duplex settings. Informational message only . No action is required. 8 Network controller configured f or 100Mb half-duplex link.
4 Broadcom Gigabit Ethernet T eaming Services 153 E 4.9.3 Intermediate Driver (Virtual Adapter/T eam) The intermediate driver is identified by BLF M regard less of the base driver r e vision. "• Intermedi ate Driver Event Log Messages" ( J pg.
154 7 Co uld not bind to adapte r . The driver could no t open one of the team physical adapters. Unload and reload the physical adapter driver , install an updated physical adapter driver , or replace the physical adapter . 8 Successfully bind to adapte r .
4 Broadcom Gigabit Ethernet T eaming Services 155 E 15 Network adapter is disabled via management interface. The driver has successfully disabled a physical adapter through the management interface. Informationa l message only . No action is required.
156 5 Broadcom Advanced Control Suite 2 (BAC S2) This chapter explai ns the Broadcom Advanced Control Suite 2 (BAC S2). 5.1 BAC S2 Overview BACS2 is an integrated utility that provides useful information abou t e ach network adapter that is installed in your system.
5 Broadcom Advanced Control Suite 2 (BACS2) 157 E 5.1.1 T ypes of Informa tion Provided by BACS2 BACS2 lists all of the network ad apters in your system and provid es the following information (if available) about each adapter: The details of a f unction prov ided by BA CS2 are sh own below .
158 5.2 Installing the BACS 2 If [Broadcom Control Suite 2] is not displayed in th e "Control Panel", install BACS2 accordi ng to the following installation procedures: ` Ensure that this product is inst alled in th e Server Blade before inst alling BACS2.
5 Broadcom Advanced Control Suite 2 (BACS2) 159 E Fo r Windows Server 2003 x64 1 Start the following EXE file from the ServerSta rt Disc1 CD-ROM attached to the BX620 S4. [CD-ROM drive]: PROGRAMSGENERA LBroadcomMgmtApps_x64setup.exe The installer starts up.
160 3 Click "I accept the terms in th e license agre ement" and click [Next]. Custom Set up window appears. 4 Click [Next]. Proceed the installation by follo wing the window instructions.
5 Broadcom Advanced Control Suite 2 (BACS2) 161 E Fo r Windows Server 2003, Wi ndows 2000 Server ` If the OS is installed using ServerS tart, "BAC S2" is already installed with the driver . If the OS is installed manually , BACS2 will not be installed.
162 5.3 Starting BAC S2 T o start BACS2, click "Control Panel" → "Broadcom Control Suite 2". Click the tab that provides the in formation of interest or from which to perfo rm a desired test, diagnostic, analysis, or set adapter prop erties.
5 Broadcom Advanced Control Suite 2 (BACS2) 163 E Network Status The following network status information is provide d. Driver Status The status of the adapter driver Loaded Normal operating mode. The ad apter driver has been loaded by W indows and is functionin g.
164 T eam Status The team status is indicated by the appearance of the icons repre senting the team and the team members. If the adapter icon shows only the adapter, the adapter is co nnected to a network, but is not correctly participating in the t eam, which corresponds to a Not Ac tive BASP state.
5 Broadcom Advanced Control Suite 2 (BACS2) 165 E 5.4.2 Resources The following info rma tion can be checked on the "Resources" tab. ` Some inform ation may not be availabl e for all ne twork adap ters.
166 5.4.3 Hardware The following information can be checked on the "Hardware" tab. ` Some infor mation may not be availabl e for all ne twork adap ters. Item Descri ption ASIC V ersion The chip vers ion of the Broadcom adapte r (this information is not available for adapters made by other s).
5 Broadcom Advanced Control Suite 2 (BACS2) 167 E 5.4.4 Advanced The following info rma tion can be checked on the "Advanced" tab. The "Advanced" tab a llows you to view and change the values of the available properties of th e selected adapter .
168 Checksum Offload Normally , the checksum functio n is comp uted by the pro tocol stack . When you select one of the Checksum Offload property values (other than None), the checksum can be comp uted by the network adapter . • Rx TCP/IP Checksum Enables receive TCP/IP/UDP checksum offload.
5 Broadcom Advanced Control Suite 2 (BACS2) 169 E Locally Administered Address The Locally Administered Address is a user-defined MAC address that is used in place of the MAC address or iginally assigned to the network adapter . Every adapter in the netw ork must have its own unique MAC address.
170 5.4.5 Network T est On the "Netwo rk T est" tab, you can verify IP networ k connectivity . This test ve rifies if the driver is installed correctly and tests conn ectivity to a gateway or other sp ecified IP address on the same subnet. Network T est uses TCP/IP .
5 Broadcom Advanced Control Suite 2 (BACS2) 171 E Item Descript ion Control Registers This test verifie s the read and write c apabilities of the network adapter registers by writing various values to the registers and verifying the results.
172 5.4.7 Statistics On the "Statistics" tab, you can view traffic st atistics for both Broadcom network adapters and network adapters made by others. S tatistical info rmation and cover age are more comprehensive f or Broadcom adapters. ` Some statistics may no t be availabl e for all networ k adapters.
5 Broadcom Advanced Control Suite 2 (BACS2) 173 E IEEE 802.3 Statistics Multicast Frames Rx. A count of f rames that were successfully received and are directed to an active nonbroadcast group addr ess.
174 Custom Statistics Item Description Out of Recv . Buffer The number of times the ad apter ran out of Receive Buf fer Descriptors. Frames size less than 64-byte with bad FCS The number of frames with a size le ss than 64 bytes with bad FCS. MAC Rx w/ Pause Command and Length = 0 MAC control frames with the pause co mmand and a length equal to 0.
5 Broadcom Advanced Control Suite 2 (BACS2) 175 E 5.4.8 Licenses On the "Licenses" tab, you can view the numbe r of connections availabl e for TOE, iSCSI, and RDMA offload technologies. Y ou can also upg r ade your license for additional connections.
176 5.5 Configuring T eaming The teaming function allows y ou to grou p any ava ilabl e network adapters together to function as a team. T eami ng is a method of creating a vi rtual LAN (a group of multiple adapte rs that functions as a single adapter).
5 Broadcom Advanced Control Suite 2 (BACS2) 177 E 5.5.1 Using the Broadcom T eaming Wizard Y ou can use the Broadcom T eaming Wizard to create a team, configure an existing team if a team has already been created, or create a VLA N.
178 4 Select the type of team you want to create and then click [Next]. If the team type is an SLB type team, click [Nex t]. If the team type is not an SLB type team, then a dialog box appears. V erify that the network switch connected to the team members is confi gured correctly for the team type, click [OK], a nd continue.
5 Broadcom Advanced Control Suite 2 (BACS2) 179 E The Large Send Of fload (LSO) and Checksum Of fload (CO) columns indicate if the LSO and/or the CO properties are supported (Y) or not supported (N) for the adapter . The LSO and CO properties are enabled for a team only when all of the members support and are configured for the featur e.
180 7 Select the standby member from the list of adapters. The Auto-Fallback Disable mode feature allow s the team to contin ue usin g the standby member rather than switching back to the primary member if the primary member comes back online. T o enable this feature, click "Enable Auto-F allback Disable mode" and then click [Next].
5 Broadcom Advanced Control Suite 2 (BACS2) 181 E 10 Click the probe target at the top of the list, click "Edit T arget IP Address", type the target IP addr ess in the "IP Address" box for one or all probe targets, and then click [OK].
182 12 If you want to create a VLAN on the team, clic k [Y es] and then click [Next]. If you do not want to create a VLAN to the team , click [N o], click [Next], and continue with the wizard from the "Finish" screen (refe r to Step 17 of this procedure).
5 Broadcom Advanced Control Suite 2 (BACS2) 183 E ` The team name cannot ex ceed 39 char acters, cann ot begin with spaces, and cannot contain an y of the followi ng charact ers: & / : * ? < > | 14 T o tag the VLAN, click "T agged" and then click [Next].
184 15 T ype the VLAN tag value and then click [Next]. The value must be between 1 and 4094. 16 Click [Y es] to add another VLAN and then click [Next]. Repeat until you do not want to add any additional VLANs. ` Y ou can defin e up to 64 VLANs pe r team (63 VLAN s that are tagged and 1 VLAN that is not t agged).
5 Broadcom Advanced Control Suite 2 (BACS2) 185 E 17 T o apply and commit the changes to the team, click "Commit changes and return to Broadcom Advanced Control Suite 2" and then cl ick [Finish ].
186 5.5.3 Using Expert Mo de Use Expert Mode to create a team, modify a team , add a VLAN, and conf igure LiveLink for a Smart Load Balance and Failover team. T o create a team using the wizar d, refer to "5.5.2 Creating and Modifying a T eam Using the T eaming Wizard" ( J pg.
5 Broadcom Advanced Control Suite 2 (BACS2) 187 E 3 T ype a team name in the "Enter a na me you will use to identify this team" box, and click the type of team, and then click [Next].
188 6 Click [Y e s] when the message is displayed indicating that the network connection will be temporar ily interrupted. ` The team na me cannot exceed 39 character s, cannot begi n with spaces, and cannot con tain any o f the followin g characters : & / : * ? < > | ` T eam names must be unique .
5 Broadcom Advanced Control Suite 2 (BACS2) 189 E The following shows how to modify a team. 1 Click the BAC S2 "T ools" menu → "Create a T eam". The wizard W elcome screen appears. 2 Click [Next] to continue modifying a team usin g the wizard or click [Expert Mode] to work in Expert Mode.
190 3 T ype the VLAN ID and VLAN name, and click [Apply]. ` If you type a VLA N name or ID an d the name alrea dy exists, an er ror message is displaye d. 4 Click [Y e s] when the message is displayed indicating that the network connection will be temporar ily interrupted.
5 Broadcom Advanced Control Suite 2 (BACS2) 191 E Deleting a VLAN T o delete a VLA N, right-click the VLAN and select "Remove VLAN". 1 Click the "T ools" menu → "Configure a T eam". If there is more than one team , click the na me of the team tha t has the VLAN you want to delete, and then click [OK].
192 The following shows how to con figure a LiveLink. 1 Right-click the name of the Smar t Load Balance and Failover (SLB) team, and then click "Configure LiveLink".
5 Broadcom Advanced Control Suite 2 (BACS2) 193 E 4 Click one of the listed team me mbers, click "Edit Member IP Address", type the member IP a ddress in the "IP Address" box, and then click [OK]. ` All of the member IP ad dresses mu st be in th e same sub net as the subnet fo r the probe targets.
194 8 Click one of the listed team members, click "Edit Member IP Address", type the member IP address in the "IP Address" box, and then c lick [OK]. ` All of t he member IP a ddresses must be in t he same subn et as th e subnet fo r the probe t argets.
Appendix A Contact Informati on 195 E Appendix A Contact Information • Australia: Fujitsu Australia Limited T el: +61-2-9776-4555 Fax: +61-2-977 6-4556 Address: 2 Julius A venue (Cnr Delhi Road) North R yde, Australia N.S.W . 2113 • China: Fujitsu (China) Holdings Co.
196 • Singapore: Fujitsu Asia Pte. Ltd. T el: +65-6777-657 7 Fax: +65-6771-55 02 Address: 20, Science Park Road, #03-01 T e leT ech Park, Singapore Science Park I I, Singapore 1 17674 •T a i w a n : Fujitsu T aiwan Limited T el: +886-2-231 1-2255 Fax: +886-2-231 1-2277 Address: 19F , No.
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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 Fujitsu BX620 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 Fujitsu BX620 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Fujitsu BX620 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Fujitsu BX620 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Fujitsu BX620, 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 Fujitsu BX620.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Fujitsu BX620. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Fujitsu BX620 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.
