Manuel d'utilisation / d'entretien du produit Version 4.4 du fabricant Promise Technology
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P ROMISE A RRAY M ANAGEMENT (PAM) FOR FastTrak S150 SX4 and SX4000 series User Manual Version 4. 4.
Promise Array Management ii Copyright © 2003, Promi se Techno logy, Inc. All R ights R eserved. Copyright by Pro mise T echnology , Inc. (Prom ise Techn ology ). No part of t his manual may be repro duced or trans mitted i n any form w itho ut the ex pressed, written perm ission of Pr omise Technolo gy.
iii Content s Chapter 1: Introduction ............................................................................................... 1 PAM Components ............................................................................................... 1 How T hey W ork T ogether .
Promise Array Management iv Chapter 5: RAID Monitoring and M aintenance with PAM ......................................... 43 Launch PAM...................................................................................................... 43 Local PAM .
1 Chapter 1: Intr oducti on Promise Array M anagement (PAM ) is a utility app lication designed specifically for monit oring and ma naging Promise T echnology RAID pro ducts, such a s the FastTrak SX 4000 series and S150 SX4 RAID Contro ller cards. Promise i ncludes BIOS-based R AID management uti lities with eac h of its products.
Promise Array Management 2 How They Work Together The Promise Array Management (PAM ) utility provides a nd easy w ay to set up, monitor, mod ify and repair you r RAID. PAM w o rks with the Pr omise FastTrak SX4000 seri es and S150 SX4 Controller card.
Chapter 1: Introduct ion 3 PAM Installati on Options Following are some example s of ways you can incorporate PAM into your network and RAID systems. Router & Firewa ll Laptop computer + M onit or.
Promise Array Management 4 A net wor ke d PC + Monitoring Utility Company LAN A networked PC + Monitoring Utility + Message Server PC + Fas tTra k S150 SX4 + Inter nal RAID array + Message A gent PC + Fa stTr ak S 150 SX4 + Message Agent PC + FastTrak SX4000 series + Message A gent Figure 2.
Chapter 1: Introduct ion 5 PC + FastTrak S150 SX4 + Inter nal RAID array + M onitor ing Util ity + Message Server + Message A gent PC + FastTrak SX400 0 series + Monitoring U tilit y + Message Server + Message Agent Figure 3.
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7 Chapter 2: Ins t allation To install Pro mise Array Manageme nt (PAM) is an uncom plicated procedure , once you un derstand your syst ems and how you want to use PAM . The purpose of this Chapter is to help you p lan and carry out yo ur installati on of PAM.
Promise Array Management 8 Router & Firewall Laptop comput er + Monitoring Utility A networked PC + Moni t oring Utilit y Com pany L AN Internet Home-based PC + Monitoring Utility Modem Network Fi.
Chapter 2: Instal lation 9 Message Serv er The Messag e Server installs o nto the RAID PC if your in stallation does n ot involve a n etwork. If you w ant run PAM over a netw ork, install the M essage Server on on e of your networked computers includi ng a file server, a networked P C or the RAID PC.
Promise Array Management 10 Network Requirements If you plan t o install PAM on a network be sure all the hosts a nd servers are connect ed and runni ng. That is, ea ch of the PCs, RAID s and Servers must have a working n etwork connecti on before you insta ll PAM.
Chapter 2: Instal lation 11 Figure 5. PAM Setup Opening S creen. 7. Click Nex t or press Enter to continue. Figure 6. The License A greement. 8. When the L icense Agre ement appears, click the Yes butt on to agree to the terms and co ntinue the inst allation.
Promise Array Management 12 Figure 7. The Setup Ty pe dialog box. 9. In the Setup Type dialog box , make your choice between Comple te (Recomme nded) and Custom installation. Use the Custo m instal lation to change inst all locations or to deselect individual c omponents.
Chapter 2: Instal lation 13 Figure 9. Add User A ccount dialog box. 12. When the Ad d User Ac count dialog box appears, you may a ccept the default name or enter a new one in the N ame field. 13. Enter your pas sword in the Passw ord and Confirm Pa ssword fields.
Promise Array Management 14 Figure 10. Install Complete dialog b ox. 14. When the I nstall Complete dialog box appears, y ou have th e option to • Create progra m shortcuts on y our Desktop • Register W ebPAM online Both of these o ptions are reco mmended.
15 Chapter 3: Initi al Setup After you hav e completed in stallat ion, you must set up your PAM Monitoring Utility to w ork with your RAID. Launch PAM Figure 11.
Promise Array Management 16 Local PAM Log-in Launch Loca l PAM as descri bed above. W hen the PAM user interface appear s: Figure 12. Logging in to the Local A gent. 1. Right cli ck on the RAID M achine icon in Tr ee View. Select L ogin from the popup me nu (see above).
Chapter 3: Initial Set up 17 Remote PAM Log-in You must create a RAID Server in order to use Remot e PAM. The RAID Server in PAM comm unicates with th e Message Server on t he network to connect your PC with the oth er PCs running FastT rak. Launch Re mote PAM as descr ibed above.
Promise Array Management 18 Figure 16. List of RAID PCs on the net w ork. 4. Click on the + icon in front of the RA ID Server to see th e list of netw orked RAID PCs. 5. From the list of networked RAI D PCs, find the on e you want to ac cess, right-cli ck on its RAID M achine icon and s elect Login fro m the pop up menu.
Chapter 3: Initial Set up 19 Logout of RAID PC Logout of the R AID Server effectiv ely logs you ou t of all RAID PCs us ing that network co nnection. You can l og out of one RAID PC while rema ining connect ed to others on th e network.
Promise Array Management 20 PAM User Interface The Monitor w indow is the u s er interf ace for PAM. It appear s immediately after login and di splays monit oring and managem ent functions. Figure 19. The PAM Monitor w indow has three v iews. The Monitor w indow has three views: Tree View ― Di splays the ele ments of your RA ID system.
Chapter 3: Initial Set up 21 Create a New Use r The Admin istrator is created by default. You mu st create add itional user s manually. T o create a new User: 1. Right-cli ck on the U ser Management i con and select New > User from the popup me nu (below).
Promise Array Management 22 Every User has least one of th ese three Rights a nd can chan ge his/her own passw ord. The Administrator c an assign more or fewer rights to oth er Users but cannot c hange their passw ords. 3. Type in a U s ernam e and Passw ord in their respective f ields.
Chapter 3: Initial Set up 23 Figure 21. Create Array Settings. 3. The Select the Create Array icon and go to the Create Array Settings in Information Vi ew.
Promise Array Management 24 5. Click the Create button w hen you are done. Figure 22. New Array. The new array appears in T ree View. The nex t step is to partitio n and format the new array using the R AID PC's Operating Sys tem. See Appendix B in this Manual for m ore information.
Chapter 3: Initial Set up 25 Setup Email Alert Notificati on PAM alerts you to the problem s and processe s happenin g to your RAID throu gh email and p opup message s. These steps describe how to setup the emai l function. 1. Click on the RAID Machine ic on.
Promise Array Management 26 Figure 25. Email Sender and Recip ients. 9. Scroll dow n to the Email Sender and R ecipients box . 10. In the Email ID of Alert Sender field, type in t he email ad dress of thi s computer. 11. This addr ess will appear in the From fiel d of the email alerts.
Chapter 3: Initial Set up 27 Specify Alert Notification Ev ents PAM can be co nfigured to rep ort a variety of alert s, by email, popu p message or both. This s ection describes how to tell PAM what to report a nd which method to use. 1. Click on the RAID System icon w hose alert notifica tion events y ou wish to modify.
Promise Array Management 28 Following is a list of Event s and their Severity: Information Ev ents Warning Events Disk S.M.A.R.T. Failed Disk Tim e Out Array Critica l Controller Delete Arr ay Array R.
29 Chapter 4: P A M User Interface This chapter describes PAM ’s Graphic User Interf ace (GUI). Y ou should understan d that PAM is softw are running on top of the Promise RAID BIO S and other applic ations that ca me with your Promise R AID product.
Promise Array Management 30 Tree View Local PA M The Monitor w indow is the u s er interf ace for PAM. It has thr ee views: T ree View, Object View and Information V iew which were intr oduced in C hapter 3. The T ree View displays al l of the elements of your RAID sy stem.
Chapter 4: User Interface 31 Remote P AM Figure 31. An example of a RA ID s y stem in Tree View on Remote P AM. Normally , the Tree V iew is present. T o close it, right- c lick on any object and select Hi de Pane from the p opup menu. To open it again, go to View menu and Outline.
Promise Array Management 32 Tree View and Component Speci fic Menus In PAM, like most Window s applications, you can a ccess the v arious command s and funct ions by opening dr opdown menu s and clicki ng on icons. E ach time you click on a component in T ree View, PAM ’s menu bar also d isplays that component’ s dropdown menu.
Chapter 4: User Interface 33 Information View Information Vi ew, like Objec t View , changes its co ntent depending on w hich item you select in Tree View. T he difference is that you use Infor m ation Vi ew to obtain data, i nput settings and information.
Promise Array Management 34 Pulldown Menus As indicated above, the left- most item of t he Pulldown M enus changes according to which compone nt is select ed in the Tree View . Dynamic Menus By the term D ynamic M enus, we refer to m enus appear only when a cert ain item is selecte d in Tree View.
Chapter 4: User Interface 35 RAID Machine Menu When the RAID Machine is se lected, the RAID M achine menu app ears. Its function s include: • Login • Logout • Screen refre sh • Rename the RAID Machine i con • Exit PAM RAID System Me nu The RAID System m enu appears with the RAID System icon is selec ted.
Promise Array Management 36 W hen th e Arr ay icon is s elected, the M aintenance menu d isplays Control ler function s: • Pause synchronizat ion/rebuild • Continue synchro nization/rebuild • De.
Chapter 4: User Interface 37 Preference M enu The Preference menu allows y ou to start PAM automatically when your PC boots. Che ck to enable or uncheck to disabl e this feature. If you are us ing PAM for remote mo nitoring, running PAM automatically is a good idea.
Promise Array Management 38 Toolbar The T oolbar is a series of bu ttons that are shortcuts to perf orming speci fic tasks. You w ill never see all butt ons active as in the example below. Figure 36. The Toolbar. They becom e active when y ou click on specific sy stem component s in T ree View.
Chapter 4: User Interface 39 Popup Menus In addition to the command s in the dropdow n menus, there is a corresponding set of co mmands you can access via po pup menus. In a popup me nu, you can u se any of the com m ands t hat are in black. Y ou will notice that some function s are grayed out, m eaning that you cannot use them .
Promise Array Management 40 RAID Sy stem Icon The RAID Sy stem icon repres ents the FastTrak SX4000 series a nd S150 SX4 PCI cards (r ight). There ar e two commands for th is item: • Screen refresh .
Chapter 4: User Interface 41 A r ray Icon Right-click on the Array icon to access t he following comma nds: • Pause synchronizat ion/rebuild • Continue synchro nization/rebuild • Delete this arr.
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43 Chapter 5: R AID Monitoring and Maintenance w ith P A M This ch apter descri bes using PAM to monitor and manage y our RAID syst em. The chapt er is div ided into section s for major PAM functi ons: • Local PAM • Remote PAM • Manage Users • Alert Notification • Controller • Arrays Launch PAM Figure 37.
Promise Array Management 44 Local PAM Log-in Launch Loca l PAM as descri bed above. W hen the PAM user interface appear s: Figure 38. Logging in to the Local A gent. 1. Right cli ck on the RAID M achine icon in Tr ee View. Select L ogin from the popup me nu (see above).
Chapter 5: RAID Monitori ng and Maintenance 45 Remote PAM Log-in The RAID Server remains under the M y Console icon u ntil deleted. It continues to work as long as the IP addr ess is corr ect.
Promise Array Management 46 Create a RAID Serv er The Messag e Server relays da ta and command s between the M onitoring Utility on this com puter and the M essage Agent on the R AID PC. In order for your monitoring PC to communicat e with the Messag e Server, you must create a RAID Server.
Chapter 5: RAID Monitori ng and Maintenance 47 Delete a RA ID Server If the IP addres s changes for t he computer w here the Message Serv er software is in stalled, an ex isting RAID Server w i th the old a ddress will no longer work. 1. Right-click on a RAID Server icon and select Delete from the p opup menu.
Promise Array Management 48 Future Log-ins The RAID Server remains under the M yConsole ico n until deleted. It continues to work as long as the IP addr ess is corr ect. Figure 44. Connect to the Mes sage Server. To make a c onnection with a n existing RAID Server: • Right-click on a RAID Server icon and select C onnect from t he popup menu.
Chapter 5: RAID Monitori ng and Maintenance 49 Message S erver IP Address Chang e If the IP addres s changes for the c omputer where the M essage Server softw are is install ed, an existin g RAID Server w ith the old address w ill no longer w ork. 1. Right-click on a RAID Server icon and select D elete from the popu p menu.
Promise Array Management 50 Manage Users Create a New User The Admin istrator is created by default. You mu st create add itional user s manually. 1. Right-click on the User M anagement icon selec t New > User from t he popup menu (right). A n ew User icon appe ars.
Chapter 5: RAID Monitori ng and Maintenance 51 Type in a U s ernam e and Passw ord in their respective f ields. Check a ll the appropriat e boxes to set acces s rights. Click the Commi t button when you are done. The new user’s name appears in the Tree View (right).
Promise Array Management 52 Alert Notificat ion PAM alerts you to the problem s and processe s happenin g to your RAID throu gh email and p opup message s. These steps describe how to setup the emai l function. 1. Click on the RAID Machine ic on. Information for the R AID PC appears i n Information Vi ew.
Chapter 5: RAID Monitori ng and Maintenance 53 Figure 48. Email Sender and Recip ients. 8. Scroll dow n to the Email Sender and R ecipients box . 9. In the Email ID of Alert Sender field, type in t he email ad dress of thi s computer. This addr ess will appear in the From fiel d of the email alerts.
Promise Array Management 54 Delete a User f rom the Recipient List To remove a re cipient from th e Email Address Li st, do the foll owing: 1. Click on the RAID Machine ic on from which you wish to delete an email alert message recip ient. The Current Re cipients w i ndow appears in the Informa tion View .
Chapter 5: RAID Monitori ng and Maintenance 55 Specify Alert Notification Ev ents PAM can be co nfigured to rep ort a variety of alert s, by email, popu p message or both. This s ection describes how to tell PAM what to report a nd which method to use.
Promise Array Management 56 Following is a list of Event s and their Severity: Information Ev ents Warning Events Disk S.M.A.R.T. Failed Disk Tim e Out Array Critica l Controller Delete Arr ay Array R.
Chapter 5: RAID Monitori ng and Maintenance 57 Con troller The Controll er deals with cre ating new Array s, reading eve nts from the memory buffer, set ting cache an d perfo rmance optio ns. Array creatio n is covered in t he Arrays secti on of this chapter.
Promise Array Management 58 Controller Options The Controll er has system in formation and settings several i m portant f eatures. Click on the Controller icon in T ree View to see the Opt ions in Informat ion View.
Chapter 5: RAID Monitori ng and Maintenance 59 Controller Cache Allows you to t oggle betw een two write mode s for the FastT rak's cache: Write Through – Dat a is written to the cache and hard drive at the sa me time. This arrangement is saf er.
Promise Array Management 60 PCI Bus Utilization On High setting, FastT rak holds onto t he PCI bus longer for data transfers to occur. On Low setting, Fa stTrak release s the PCI bus sooner for other PCI device s to use. Normally , no adjustment is required.
Chapter 5: RAID Monitori ng and Maintenance 61 Arrays Create an A rray 1. In Tree View , click the + to the left of the Controll er icon to s ee the Channels. C lick the + to th e left of each C hannel icon to see the unassigned disk drives. Unassigned driv es have this icon.
Promise Array Management 62 Figure 55. Create Array Settings. 3. The Select the Create Array icon and go to the Create Array Settings in Information Vi ew.
Chapter 5: RAID Monitori ng and Maintenance 63 5. Click the Create button w hen you are done. Figure 56. New Array. The new array appears in T ree View. The nex t step is to partitio n and format the new array using the R AID PC's Operating Sys tem.
Promise Array Management 64 Synchronize an A rra y Promise use s the ter m synchroniz ation to mean an autom ated process of checking a nd correcting d ata and parity. Unli ke a Rebuild , Synchronization i s a maintenanc e operation. Synchronizat ion applies to RAIDs 1, 0+1 a nd 5.
Chapter 5: RAID Monitori ng and Maintenance 65 On Demand Synchronization In addition to schedule Synchr onization, you can direct FastT rak to begin t he Synchronizat ion process imm ediately. To acc ess this featur e: Figure 59. Start Synchronization.
Promise Array Management 66 Synchronizati on Settings This feat ure tells FastTr ak how to deal w ith inconsistenci es in mirrored or parity data encount ered on the dis k driv es during Synchroniz ation. Figure 61. Error Handling Policy for Synchronization.
Chapter 5: RAID Monitori ng and Maintenance 67 Expand / Convert an A rra y Expansion an d Conversio n are tw o different operation s but they often w ork together. E x pansi on means ad ding disk drives t o an existing array. Conversion means chan ging an ex isting array from o ne RAID level to an other.
Promise Array Management 68 Figure 63. Select a disk drive to ad d to the array . 3. In the Sele ct Free Disk dia log box, clic k on the ico n of any av ailable disk drive to sel ect it. Then cl ick Nex t to continue. Figure 64. Do not select a RAID Lev el.
Chapter 5: RAID Monitori ng and Maintenance 69 Figure 65. Verify the Ar ra y name and cl ick Finish. 5. In the Finish dialog box , verify the name of th e array you are ex panding. Then cli ck Finish to begin the expansion proc ess. Figure 66. Expansion progress.
Promise Array Management 70 Conversion Converting changes its RA ID Level, and i n some case s increases th e array capacity, w ithout affect ing dat a availabil ity. Depending o n the source and target RAID levels, you can add o ne or more free di sk drives while performing the Convert functi on.
Chapter 5: RAID Monitori ng and Maintenance 71 To convert an existing array: 1. Click on the Array icon in T ree View. Figure 67. Start Conversion. 2. Scroll dow n in Information Vie w to show the Conv ersion/Expansion W izard and click the Start button.
Promise Array Management 72 Figure 69. Select the new RAID Lev el. 4. In the Sele ct RAID Mode dialo g box, click o n the icon of the new RAID level to sele ct it. T hen click Nex t to cont inue. Figure 70. Verify the Ar ra y name and cl ick Finish. 5.
Chapter 5: RAID Monitori ng and Maintenance 73 Figure 71. Conversion progress. During the Co nversion, the arr ay will be avail able for use but it may ru n noticeably slower. If the popup m essages are en abled, one w ill notify y ou when the Conver sion is successf ully completed.
Promise Array Management 74 A r ray Critical When a disk drive fails on a fault-tolerant array (R AID 1, 0+1 and 5) for any reason, the Array goes Critical.
Chapter 5: RAID Monitori ng and Maintenance 75 In the ex ample above, there are three disk drives attached to the FastTrak controlle r and all three ar e assigned to a RA ID 5 array. The three dis k drives appear under the Controll er but only two app ear under the Array.
Promise Array Management 76 Rebuild an A rra y To Rebuild to restore redunda ncy to a RAID 1, 0 +1 or 5 after one o f its drives has failed. U nlike Synchroniz ation, a Rebuild is a repair oper ation. When a drive f ails for any reas on, the Array goes Critical.
Chapter 5: RAID Monitori ng and Maintenance 77 Manual Rebuild After you repla ce a failed disk drive, the replac ement dr ive must be rebuil t in order to restore the Array. To initiate a n array Rebuild m anually: 1. In Tree View , select the Array icon of the array y ou want to rebuild.
Promise Array Management 78 Figure 78. Rebuild Wizard Confirmatio n w indow. To confir m the rebuild c hoice, cli ck Finish. Tree View and Information Vie w display the progr ess (below). Figure 79. Rebuild progress. During the Re build process, the array will be available for u se but it may run noticeably slower.
Chapter 5: RAID Monitori ng and Maintenance 79 Rebuild Settings Beeper – Righ t-click on the C ontroller icon and se lect Beeper from t he popup menu. A checkmark me ans the beeper i s enabled. Figure 80. Rebuild Settings in Infor mation View. Right-click on the Controll er icon and lo ok into Informat ion View.
Promise Array Management 80 Error Handling This feat ure deals with a b ad sector on a di sk drive that the F astTrak Control ler encounter s during a Rebui ld. The options a re: Fix if possib le – The C ontroller attempts to repair the disk e rror.
Chapter 5: RAID Monitori ng and Maintenance 81 A r ray Offline When a disk drive fails on a non-fault-tolerant array (RAID 0) for any rea son, the Array goes Off line. The array cannot read or w rite data. All of the data on the array w ill be lost unless th e failed drive is rest ored to operatio n.
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83 Appendix A: R AID Concept s RAID is a n acronym that sta nds for Redundant Arr ay of Independe nt Disks. It is divided int o different numb ered Levels. T he numbers of th ese Levels do not mean that one Level is higher or bett er than another. Ea ch Level has its ow n advantages and shor tcomings.
Promise Array Management 84 Stripi ng (RAID 0) Reads and w rites sectors o f data interleav ed between multi ple drive s. When any disk memb er fails, it affects the entire array . Performance is better than a s ingle drive since the workload is balanced betw een the array members.
Appendix A: RAID Concepts 85 Mirror ing (RAID 1) Writes dupli cate data on to a pair of drives w hile reads are p erforme d in parallel. RAID 1 is fault tolerant becau se each driv e of a mirrored pair is install ed on separate controller channel s.
Promise Array Management 86 Striping / Mirr oring (RAID 0+1) A combinatio n of RAID 0 and RAID 1 arrays. It can i ncrease performan ce by reading and w riting data in parallel while pr otecting data w ith duplication . A minimum of four drives are r equired.
Appendix A: RAID Concepts 87 A b out Dual Data Redundanc y One unique (t hough rarely occ urring) feature of RA ID 0+1 is dual faul t tolerance. In some ca ses, two driv es can fail simul taneously and still mainta in the integrity of data. T here are six combi nations in w hich two drives can fail.
Promise Array Management 88 Block and Parity Striping (RAID 5) RAID 5 calcu lates parity in order to achi eve redundancy rat her than wr iting a second copy of the data, l ike RAID 1. Parity i s distribut ed across the physical drives alon g with the data blo cks.
Appendix A: RAID Concepts 89 JBOD - Single Drive An alternat ive to RAID, Just a Bunch of D isks (JBO D) capacity is equal to the sum of all dr ives in the gr oup, even if the dr ives are of different sizes. JBOD appears i n the User Interfac e as one or mor e individual dr ives.
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91 Appendix B: Pa rtition and F ormat In order for your W in dows to recogniz e and work w ith your array , you must partition and f ormat the array. These actions creat e a file str ucture w ithin your array w i th which W indow s can work.
Promise Array Management 92 Figure 89. The Disk Management W indow and Disk Wizard. 3. Click the Next button to start t he W iz a rd. 4. In the follow ing windows, se lect Disk 1 to I nitialize. Do no t select any dis ks to Convert. Clic k the Finish but ton to Initialize the array.
Appendix B: Partition and Format 93 Figure 91. The New Partition Wizard. 6. Click the Next button to st art the wizard. 7. In the follow ing windows, do t he following a ctions.
Promise Array Management 94 Figure 92. The newly formatted array as it appear s under Disk Management. When forma tting is c omplete, your array will appear as a hard drive in th e Disk M anagement w indow (above) and t he My Computer w indow (below ).
95 Appendix C: Netw orking Issues IP Address In order for PAM to be configured ov er a network, you must know the IP (network) addr ess of every co mponent. The M essage Server use s IP address es to communi cate with the M essage Agent on th e RAID PCs a nd the Monitoring Utility on the network PCs.
Promise Array Management 96 DHCP Issues Referring to t he Figure 84 abo ve, note that it say s: Dhcp enabled. . . . . . . . : Yes This means that a DHCP server gave this IP address to this PC w hen the PC connect ed to the netw ork.
97 Appendix D: T echnical Suppor t Promise Tech nical Support pr ovides several su pport options for Promise users to access information and updates. W e encourage y ou to use one of o ur electronic services, whic h provide pr oduct informati on updates for t he most efficient servi c e and support.
Promise Array Management 98 Pacific Rim Sale s Office E-mail Support support@pro m ise.com .tw Fax Technic al Support +886 3 578 23 90 Attention: Tec hnical Support Phone Techni cal Support +886 3 578 23 95 (ext. 8870) 9:00-6:00p m Taiwan Time If you w i sh to wr ite us for support: Promise Tech nology, Inc.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Promise Technology Version 4.4 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Promise Technology Version 4.4 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Promise Technology Version 4.4, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Promise Technology Version 4.4 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Promise Technology Version 4.4, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Promise Technology Version 4.4.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Promise Technology Version 4.4. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Promise Technology Version 4.4 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
