QNAP Qnap TS-879 Pro manual

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First and foremost, an user manual of QNAP Qnap TS-879 Pro should contain:
- informations concerning technical data of QNAP Qnap TS-879 Pro
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- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of QNAP Qnap TS-879 Pro alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of QNAP Qnap TS-879 Pro, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the QNAP service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of QNAP Qnap TS-879 Pro.

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It is mostly in the manuals where we will find the details concerning construction and possibility of the QNAP Qnap TS-879 Pro item, and its use of respective accessory, as well as information concerning all the functions and facilities.

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Table of contents for the manual

  • Page 1

    QNAP Tu rbo NA S Hardwar e User Manu al © 201 2 . QNAP System s, Inc. Al l Ri ghts Reserved.[...]

  • Page 2

    2 Thank y ou for choos ing QNAP prod ucts! This user man ual prov ides des cription o f the hardwar e of th e T urb o NA S and rel evant gui deline of cert ain functi ons. Pl ease re ad caref ully and s trictly ad here t o the instr uctions of the m anual. Th is u se r ma nu al is ap pl ic ab le to th e fo llow in g T ur bo N AS mod e ls: TS - 112,[...]

  • Page 3

    3 DISCL AIMER In no eve nt shall Q NAP Sys tems, Inc. ( QNAP) liability ex c ee d the pri ce paid for the product fr om dir ect, ind irec t, spe cial, inc ident al, o r con sequ en tial d am ag es res ulti ng fr om the use of the p roduct, its ac company ing softw are, or its doc umentation. QNAP ma kes no warr anty or re p rese ntation, expressed,[...]

  • Page 4

    4 Regulatory Not ice FCC STATEMEN T This equipment has been tested and fo und to comply with the limits fo r a Class B digital device, pur suant to P a rt 15 of FCC R ules. These limits are designed to pro vi de re asonable prot ection agai nst h armful interfer ence i n a r esiden tia l ins talla tio n. This equip ment gene ra t es , uses, and can[...]

  • Page 5

    5 Symbols in th is docu ment W arning Thi s icon in dicates th e inst ruction s must b e stri ctly foll owed. F ailure to do so could result in i njur y to human body or d ea th. Caut ion Thi s icon in dicates the acti on may lead t o disk cl earance or loss OR failure to follow the instruc tions could result in data damage , disk damage, or produc[...]

  • Page 6

    6 Table of Content s T able of Co ntents .................................................................................................................................................. 6 Safety W arnings ...............................................................................................................................................[...]

  • Page 7

    7 Safety War nings 1. The NAS can operate n orma lly i n th e temperatu re of 0 ºC –4 0ºC a nd r elat ive humid ity of 0% – 9 5%. Plea se ma ke sure th e envi ronme nt i s well - v entilated. 2. The p ower c ord an d devi ces c onne cted t o the NA S mu st prov ide c orrect supply v oltage (100W , 90 – 264V). 3. Do not p lace t he NAS i n d[...]

  • Page 8

    8 Chapt er 1. CPU and Me mory Spec ificat ions Caut ion : Modi fy i ng the ha rdware, s oftware , or f irmware of the QNA P produ cts wil l voi d t he warr anty . QNA P is n ot respon sibl e for any form of damag e or l oss of da ta caused by modding the QNAP pro ducts. U sers s hould bear thei r own risks of all sorts of p ossibl e data l oss or s[...]

  • Page 9

    9 System TS - 119P II TS - 219P II TS - 419P II , TS - 419U II CPU Marv ell 2.0 GHz Marv ell 2.0 GHz Marv ell 2.0 GHz Memory 512MB DDR 3 512MB DDR 3 512MB DDR3 Fla sh 16MB 16MB 1 6MB CPU repl aceabl e No No No Memor y replaceab le No No No Number of SODIMM slots 0 0 0 Number of hard driv e slots 1 2 4 System TS - 459 Pro II CPU Dual - core Intel ®[...]

  • Page 10

    10 System TS - 879 Pro TS - 1079 Pro TS - 879U - RP CPU Inte l ® Core i3 Du al Core ( 3.3 0 GHz ) Inte l ® Core i3 Du al Core (3.30 GHz ) Inte l ® Core i3 Du al Core (3.30 GHz ) Memory 2GB DDR3 RAM 2GB DDR3 RAM 4 GB DDR3 RAM Fla sh 512MB (US B DOM) 512MB ( USB DO M) 512MB (USB DOM) CPU repl aceabl e No No No Memor y replaceab le No No Ye s Numbe[...]

  • Page 11

    11 System TS - 1679 U- RP TS - EC 16 79U - RP CPU Int el ® Core i3 D ual C ore (3.30 GHz) Inte l ® X eon Qua d Core (3. 20 GHz) Memory 4 GB DDR3 RAM 4 GB DDR3 ECC RA M Fla sh 512MB (US B DOM) 512MB (US B DOM) CPU repl aceabl e No No Memor y replaceab le Ye s Ye s Number of LONG - DIMM slot 4 4 Number of hard driv e slots 16 16 Number of expansi o[...]

  • Page 12

    12 System TS - 269 Pro TS - 469 Pro TS - 569 Pro CPU Dual - co re Intel ® Atom ™ process or (2.13 GHz) Dual - co re Intel ® Atom ™ process or (2.13 GHz) Dual - co re Intel ® Atom ™ process or (2.13 GHz) Memory 1GB DDR3 (Expan dable RAM, up t o 3GB) 1GB DDR3 (Expan dable RAM, up t o 3GB) 1GB DDR3 (Expan dable RAM, up t o 3GB) Fla sh 512MB ([...]

  • Page 13

    13 System TS - 469U - RP /SP TS - 869U - RP TS - 1269U - RP CPU Dual - co re Intel ® Atom ™ process or (2.13 GHz) Dual - co re Intel ® Atom ™ process or (2.13 GHz) Dual - co re Int el ® Atom ™ process or (2.13 GHz) Memory 1GB DDR3 (Expan dable RAM, up t o 3GB) 2GB DDR3 (Expan dable RAM, up t o 4 GB) 2GB DDR3 (Expan dable RAM, up t o 4 GB) [...]

  • Page 14

    14 System TS - 269L TS - 469L TS - 569L CPU Dual - core Intel ® Atom™ processor (1 .86 GHz) Dual - core Intel ® At o m™ processor (2 .13 GHz) Dual - core Intel ® Atom™ processor (2 .13 GHz) Memory 1GB DDR3 ( Expandable RAM, up t o 3GB) 1GB DDR3 ( Expandable RAM, up t o 3GB) 1GB DDR3 ( Expandable RAM, up t o 3GB) Fla sh 512MB (USB D OM) 512[...]

  • Page 15

    15 System TS - 870U - RP TS - 1270U - RP CPU Intel® C eleron® Proc essor 2. 10 GHz Intel® C eleron® Proc essor 2. 10 GHz Memory 4GB DDR3 4GB DDR3 Fla sh 512MB 512MB CPU repl aceabl e No No Memory replacea ble Ye s Ye s Number of SODIMM sl ots 4 4 Number of hard driv e slots 8 12[...]

  • Page 16

    16 Chapt er 2. Power But ton and R eset Button Behavio r  P ower button: Press to turn on or tu rn off . System Power button (Tu rn on) Power button (Hard ware turn off) Power button (Forc e turn off ) All models Press on ce 1.5 sec 5 sec  R eset butto n: Press to reset the system settings. System Basic sy stem re set (1 beep ) Advanc ed syst[...]

  • Page 17

    17 Advanc ed system reset (1 0 sec) P ress the re set bu tton f or 10 seconds ; you wi ll hear t wo b eeps at the t hi rd and the te n th seconds . The NAS will reset all the sys tem settings to default as it does b y web - based system rese t i n “ Administr ation” > “Res to re to F actory Default” exc ept all the data are reserv ed. Th[...]

  • Page 18

    18 Chapt er 3. USB One Touc h Copy System Number o f secon ds (pres s th e one t ouch co py butto n to trigg er data copy) All NAS models 0.5 sec Data Copy by the Fro nt USB Port The NAS s upports instant data copy back up from the ex t ernal USB device to the NAS or the other wa y ro un d by the front one touc h copy button. T o use this function,[...]

  • Page 19

    19 Chapt er 4. LED and Alarm B uzzer Specificatio ns The LED indicators of the NAS indicate the system status and info rmation. When the NAS is turne d on, chec k the following items to make sure t he system sta tus is normal . Not e tha t the follo wing LED info rmat ion is app lic able only w hen users have pro perly i nstal led t he hard d rive [...]

  • Page 20

    20 LAN Ora ng e Ora ng e The NAS is c onnect ed to t he netw ork Fla shes ora ng e The NAS is bei ng ac cess ed from the n etwork 10 G bE 1 Green Green The 1 0GbE networ k expansion card is ins ta lled Off No 10GbE networ k expansion car d is installed HDD Re d/ Green Fl ashes red The di sk dat a is b eing acce ssed and a read/ w rit e error occur [...]

  • Page 21

    21 Beep alarm : All NAS models The beep alarm can be disabled in “Sys tem Administr ation” > “Hardw a re Se ttings” . Beep soun d Number of T imes Descr iption Short beep (0 .5 s ec) 1 1. The NAS is starting up . 2. The N AS i s be i ng s hut down (softw ar e s h utdown) . 3. The user presses the reset butto n to reset t he NAS . 4. The [...]

  • Page 22

    22 Chapt er 5. Upgrade Mem ory on QNAP Tur bo NAS (RAM Mod ule Installat ion) Warn ing:  The following instr uctions s houl d only be performed by an authorized and tr ained technicia n.  Strictly adhe re to th e instr ucti ons to install a RA M module on the NAS. F ailure to do so could result in injury to human body or death. QNAP provid es[...]

  • Page 23

    23 4. Remove the ca se c over of th e NAS g ently . 5. Lift up th e Mylar s heet. Loca te th e mem ory slo t. M ake su re the slot i s empt y . 6. Gr asp th e edge of the memor y module. Align the notc h on the gold edge of the module with the no tch in the memory slot. Slide the memo ry module to the s lot at a 45 - degree angle (approximately). 7[...]

  • Page 24

    24 8. Ro tate the memory module towar ds the motherboard until the s ecuring clips c licks into place. 9. Close the ca se cover a nd fasten the screws. C onnec t the power adaptor and cables back to the NAS . 10. T o check that th e mem ory m odul e is re cogni zed by t he NAS, p ower u p th e NAS and login the web inter face as an administrato r .[...]

  • Page 25

    25 5.2 TS -x69U- RP /SP serie s (4/8 /12 - bay) Follow th e steps below to install a RAM module on the NAS. 1. T urn o ff the NAS. Disconnect the power adaptor , network cable(s), an d any other connect ors or cab les fr om the NAS. 2. Before installing the memory module, put on an antistatic wr i st str ap to prevent elect rosta t ic di scharge. T[...]

  • Page 26

    26 4. Open the NAS . 5. Sli de the m em ory module to the slot a t a 45 - degree angle (appro xi mately) .[...]

  • Page 27

    27 6. Press the m emory modu le down whil e hol ding th e cli ps open . 7. Make sur e th e memo ry modu le si ts in properl y wi th th e clip s in pl ace. 8. Cl ose the NA S cover an d fast en th e screw s. Connect the po w er adaptor and cables back to the NAS .[...]

  • Page 28

    28 5.3 TS -879U- RP, T S -1279U- RP, TS -EC879U- RP, TS -EC1279U- RP , T S -1679U- RP, TS -EC1679U- RP , TS -870U- RP , TS -1270U- RP QNAP p rovid es a 4 GB DDR3* RAM module and a 4GB DDR3 ECC ** RAM module (optional purch ase) f or use rs to u pg rade th e mem ory of t he NAS. I nse rt an extra RAM modul e on the motherb oard of the NAS to upgrade[...]

  • Page 29

    29 2. Ho ld the notch at the edge of the to p cov er . Remove the top cover i n both hands. 3. R eleas e t he ejector clips ge ntly by pulling them out o f the sides of the RAM slot.[...]

  • Page 30

    30 4. Gr asp the edge of the RAM module . Align the no tch on the gold edge of the RAM module with the notc h in the RAM slot . Ins e rt the RAM module to the RAM slot until it cannot go an y f u r t h e r.[...]

  • Page 31

    31 Chapt er 6. Networ k Expansion Card Inst allation Warn ing:  The following instr uctions s houl d only be performed by an authorized and tr ained technicia n.  Strictly adhe re to the instruc tions to install a netwo r k expa nsion card on the NA S. F ai lure to do so could resu lt in injury to human body or death. The TS - x79 Pr o seri e[...]

  • Page 32

    32 Bra ck et C Netwo rk Ex pansion Card Compat ibilit y Brac ket A (X520 - T2) Int el ® Eth ernet S erver A dapt er X520 - T2 (E10G42B) Bra ck et B (X520 - SR2/X520 - DA2) 1. Intel ® Eth ernet S erver A dapt er X520 - SR2 (E10G42BFSR) 2. Intel ® Eth ernet S erver A dapt er X520 - DA2 (E10G42B TDA) Bra ck et C ( Emu lex) 1. Emulex OneCo n nect 10[...]

  • Page 33

    33 1. T urn off the NA S. Disconnect the power adaptor , network cable(s ), and any o th er connect ors or cab les fr om the NAS. 2. Befo re installing the network ex pansion card, put on an antistatic wrist strap to prev ent electr ostatic d ischarg e. The crocodile clip should be connecte d to the grou nd. 3. Loosen the se ven scr ews on t he r e[...]

  • Page 34

    34 5. Loosen the sc rews an d rem ove the e xpansi on sl ot cover . 6. Gr asp the edge of the network ex pansion card. Align the notch o n the gold edge o f the card with the no tch i n th e PCIe slot. Insert the network expansion car d to the PCIe s lot until it ca nnot go any fur ther .[...]

  • Page 35

    35 7. F asten the sc rews. 8. Close th e cas e cover an d fasten the sc rews. Con nect th e pow er adapt or and ca bles t o th e NAS. 9. To check that the network expansion is reco gni ze d by the NAS, power up the NAS and login the web inter face as an administrato r . Go to “ S ystem Admi nistra ti on ” > “ Netw ork ” > “ TC P / I[...]

  • Page 36

    36 6.2 TS -879U- RP, TS -EC879U- RP, TS -1279U- RP, TS -EC1279U-RP , TS -1679 U- RP, TS -EC1679U- RP 1. T urn o ff the NAS. Disconnect the power adaptor , network c abl e(s), and any other connect ors o r cab les fr om th e NAS. 2. Before installi ng the netwo r k expa nsion card, put on an antistat i c wr ist str ap t o prev ent electros tatic dis[...]

  • Page 37

    37 5. Loose n the 4 screws as sho wn i n the illustr ation. 6. Grasp th e meta l edg e of th e riser card m odul e. Remove the modul e gen tly .[...]

  • Page 38

    38 7. Loos en the screw a nd rem ove the e xpansi on sl ot cover . 8. Inse rt the networ k exp ansion car d t o the P C Ie slot until it canno t go any furth er . Th en fasten the s crew.[...]

  • Page 39

    39 9. Gr asp th e me tal edge of the riser card mo dul e. Align the no tch on the gold edge of the riser c ard wi th th e notch in the P CIe slot . Insert the ri ser card modu le to the PC Ie slot until it ca nnot go any fur ther . 10. F ast en the screws . Cl ose the case cover and fast en the s crew s. 11. Connec t the power adaptor and cables to[...]

  • Page 40

    40 6.3 TS -870U- RP, T S -1270U- RP 1. T urn o ff the NAS. Disconnect the power adaptor , network c abl e(s), and any other connect ors or cab les fr om the NAS. 2. Before installin g the ne twork expans i on card, put on an antistatic wrist s tra p to prev ent electros tatic dischar ge. The croco di le clip should be co nn ec t ed to the ground. 3[...]

  • Page 41

    41 6. Gr asp th e edge of the expansion c ard. Align the no tch on the gol d ed ge of the card w ith the n otch i n the PC Ie sl ot. Ins ert th e netw ork e xpansi on card t o the PCIe slot until it cannot go any further . 7. F ast en the screws . 8. Close the case cov er an d fas t en the screws. Connec t the power adaptor and cables to th e NAS. [...]

  • Page 42

    42 Chapt er 7. Hot - swap Hard Drive s The QNAP NAS is compatible with 2.5 - inch / 3.5 - inch SA T A hard disk d rives fr om majo r hard disk br ands . For t he updated hard d ri ve co mpatibility list, plea se visit http://www .qnap.c om . Caut ion:  QNAP di sclai ms any res ponsibility for prod uct damage/malfunct ion or data loss/ re covery [...]

  • Page 43

    43 TS - 269L, TS - 46 9L, TS - 569L, TS - 669L, TS - 869L , TS - 870U - R P, TS - 1270U - RP The N AS supports ho t - swapping the har d drives when 1 member d rive c ras hes in RAID 1, 1– 2 mem ber d rives c ras h in RAID 5 or RA ID 6 . Foll ow the st eps b elow t o hot - swap the hard d rive wh en a m ember d rive fa ils i n a RA ID confi gurat[...]

  • Page 44

    44 Chapt er 8. RAID Re covery The QNAP NAS su pport s excl usive RA ID rec overy techn olog y to rec over a fai led R AID disk vo l ume fr om uni nte ntio nal disconn ection or rem ov a l of th e hard dri ves from the syst em. Usin g the RAID rec overy , use rs can recove r an i na cti ve RAID 1, R A ID 5 , or R AID 6 vol ume to degr aded mode, or [...]

  • Page 45

    45 Stan dard RAID 5 QNAP RAID 5 Standard RAID 6 QNAP RAID 6 Degrad ed mod e N-1 N-1 N- 1 & N -2 N- 1 & N -2 Rea d o nly p rot ection (for immediate data backup & hard d rive repl acemen t) N/A N- 1, ba d blocks found in the su rv iving d riv es of the array . N/A N- 2, bad blocks found in the su rv iving d riv es of the array . RA ID r [...]

  • Page 46

    46 Chapt er 9. Use the LCD Panel This featur e is only pro v ided by the NAS models with LCD panels. Pleas e vis it http://www .qnap.c om for det ai l s. The NAS provi des a ha ndy LCD panel for u sers to perform disk conf iguration and v i ew the syst em in formati on. When the NAS has star t ed up, the server name and IP addre ss will be shown. N[...]

  • Page 47

    47 For exa mple, w hen 5 har d drives installed are a vail able on the NA S , th e LCD pa nel show s: C o n f i g . D i s k s ? → R A I D 5 P ress the “ Select” button to brow se more options, for exa mpl e, RAI D 6. Press the “E nter” button and the fo llowing message s hows. Press the “Select” button to select “Yes” to con firm [...]

  • Page 48

    48 To encrypt the disk volume * , s elect “ Yes” w hen the LC D panel sho ws <En crypt V olu me?>. The default enc ryption password is “admin”. To change the pass word, please login the web - based administration interf ace as an administrato r and change the settings in “Device Configur ati on” > “Disk vo lume Encr yption Ma[...]

  • Page 49

    49 View system information by the LCD panel When t he LCD panel shows the s erver n ame an d IP a ddres s, pr ess the “Ente r” butt on to ente r the Main Menu . The Ma i n Menu consists o f the follow i ng ite ms: 1. TCP/I P 2. Physi cal di sk 3. Volume 4. System 5. Shut down 6. Reb oot 7. Pas sword 8. Back 1. T CP/ IP T he fol lowi ng opti ons[...]

  • Page 50

    50 2. P hysica l disk T he fol lowi ng opti ons are available :  Di sk In fo  Back to Main Menu The disk info s ho ws the temper ature and the capacity of the hard drive. D i s k : 1 T e m p : 5 0 ° C S i z e : 2 3 2 G B 3. Vo lume Thi s section show s the disk co nfiguration of the NAS. The first line s hows the RA ID configuration and s to[...]

  • Page 51

    51 4. S ystem This sec tion shows the sys tem temperature and the rota tion speed of the s ystem fan. C P U T e m p : 5 0 ° C S y s T e m p : 5 5 ° C S y s F a n : 8 6 5 R P M 5. S hut down Use this option to turn off the NAS. P ress the “Selec t” button to select “Yes ”. Th en press the “Enter ” button to confirm. 6. R eboot Use this[...]

  • Page 52

    52 System Me ssages When t he NAS encou nters system erro r, an er ror mes sage w ill b e shown on the LC D pan el. Press the “E nter” button to view the message. Press the “Enter” b utton again to view the next m essag e. S y s t e m E r r o r ! P l s . C h e c k L o g s System Me ssage Descript ion Sys. Fan Failed The system fan fail s Sy[...]

  • Page 53

    53 Chapt er 10. Inst all Power Supp ly Unit * Thi s section a pplies t o ra ckmount N AS mod els only . The power supply units o f TS - 879U - RP , TS - EC879U - RP , TS - 469U - RP /SP , TS - 869U - R P, and TS - 1269U -RP should only be replace d by an authorized and tr ained technic i an . 10.1 1U T urbo NAS The following instr uctions s houl d [...]

  • Page 54

    54 4. F aste n the screw tightly . 5. T urn on the NAS . Note: T o rep lace a fail ed power suppl y uni t, tu rn off the NA S. Th en re move the fai led u ni t safel y and r epeat st eps 3 - 5 abov e to install a new power supply unit.[...]

  • Page 55

    55 10.2 TS -469U- RP /SP The following instr uctions s houl d only be performed by an authorized and tr ained technicia n. Fo ll ow the st eps b elow to replace a failed power supply un i t on the TS - 469U - RP /SP . 1. T urn o ff the NAS. 2. Press the g reen l ever and remove the defective power supply unit . 3. Inse rt a new power suppl y un i t[...]

  • Page 56

    56 Warn ing: The NAS supports replacing the re dundant power s u pply unit withou t turn ing off t he ser ver when redunda nt powe r sup ply m ode is en abled. Howe ver , us ers ar e strongly re commended to turn O FF the NAS befo re replacing the pow er supply unit to reduc e the ri sk of electri c sho ck. A second power s upply unit can be instal[...]

  • Page 57

    57 3. Unplug the f ail ed po wer supply . 4. Plug in a new po w er suppl y to the NAS. 5. T urn on the NAS .[...]

  • Page 58

    58 10.4 2U T ur bo NAS (e xcept T S -1279U- RP and T S -EC1279U- RP ) The following instr uctions s houl d only be performed by an authorized and tr ained technicia n. To repl ace a faile d power supply unit on a 2U T urb o NAS, f oll ow the step s bel ow . 1. T urn off the NA S. 2. Unfa sten the screw on the failed po wer supply in an a nticloc kw[...]

  • Page 59

    59 4. Plug in the new power supply to the NAS . 5. F asten the sc r ew on the power supply in clock wi se d irection. 6. T urn on the NAS .[...]

  • Page 60

    60 Enab le war ning al ert for redundant power supply on the web - b ased interface : If two power supply units (PSU) h ave b een i nstal led on the NAS and connected to the power socket s , both PSU w ill supp l y the po w er to the NAS (applied to 1U and 2U models). U sers can enable re du ndant pow er supply mode in “S ystem Administration” [...]

  • Page 61

    61 The follo win g descri ption app lies to 1U NA S mo dels on ly. (1) Pow er s up ply in dic ato rs:  Green (left) power indicato r: Indicates th e power supply unit is in norm al status.  Re d ( ri ght ) power indicator: Indicate s th e power s upply unit is in abnormal status. (2) M ute power alarm button: When a n erro r is det ect ed on [...]

  • Page 62

    62 Technical Suppo rt QNAP pro vides dedicated online s upport and custo m er se rvice vi a in stant messeng er . Online Support: http://www .qnap .com MSN: q.suppor t@h otmail.com Skype: q na pskyp e For um : http://fo rum.qnap.com Techn ical S upport in the US A and Can ada : Email: q_suppor tus@qnap.c om TEL: +1 - 909 - 595 - 2782 Address: 168 U[...]

  • Page 63

    63 GNU GENE RAL PUBLIC LICENSE V ersion 3, 29 June 2007 Copyr ight © 2007 Free Softw a re F oundation, Inc. <http://fs f .org/> Eve ryone is permitted to copy and distribute v erbatim copies o f this license doc ument, but changing it is not allowe d. Pream ble The GN U Gen eral Pub lic Li cense i s a fre e, copyl eft li cense f or soft ware[...]

  • Page 64

    64 distribute and/o r m odify it. Fo r the developers' a nd authors' protection, the GPL clear ly explains that there i s no war ranty f or this fr e e softw are. For bo th us ers' and author s' sake, the GPL requires th at modified ve rsi ons be marked as cha nged, so that their pro blems will not be attr ibuted erron eously t [...]

  • Page 65

    65 A “cove red wo rk” m eans eit her th e unmod ifi ed Program or a wo rk ba sed on the Pr ogram. T o “propaga te” a work means to do anything with it that, w ithout per m ission, would mak e yo u directly or seco ndarily liable for infringeme nt un der appl icable c opyri ght law , e xcept exe cuting it on a computer or modify ing a priva [...]

  • Page 66

    66 needed to gene rate, i nstall, and (fo r an exe cutable work) run the object code and to modify the work, includ ing scripts to contro l those ac tivities. However , it does not include the work's System Librari es, or g eneral - purpos e too ls or g enerall y av ail able fr ee prog rams whi ch are us ed un modif ied in performi ng t hose a[...]

  • Page 67

    67 measure s. When you convey a covered work, you wai ve any lega l pow er to fo rbid ci rcumvent ion of techn ologi cal measures to th e ext ent such ci rcumvention is eff ected b y exerci sing righ ts und er thi s Licens e with respect t o the cove red work, and you discla im any intent i on to limit ope ra tion or modifica tio n of the work as a[...]

  • Page 68

    68 by the ir nature ex t ens i ons of the cov ered work , and which are no t combined with it such as to form a large r program, in or on a volume of a storag e or d istr ibut ion m ediu m, is ca lle d a n “aggre gate” if the compilation and its res ulting copyright are no t u sed to limit the access or leg al r igh ts o f the com pilat ion&apo[...]

  • Page 69

    69 A separabl e port ion of th e object cod e, whos e sou rce cod e is e xclu ded from the Correspo ndi ng Source a s a S y ste m Library , need not be included in conv eyi ng the o bj ec t code w ork. A “User Prod uct” is eithe r (1) a “co nsumer product” , which means an y tangible pers onal prop erty whi ch i s norma lly u sed for p erso[...]

  • Page 70

    70 Corre spond ing Source convey ed, and Inst allation I nf ormation provided, in accord with this section mus t be in a format that is publicly do c umente d (and with an implementation av ail ab le to the public in s ource code for m), and must require no special passwor d or ke y for unpack ing, reading or copying. 7. Addi tio nal T erms . “ A[...]

  • Page 71

    71 All other n on - perm issi ve addi tional terms a re con sid ered “furt her restri ction s” wit hin t he meani ng of secti on 10 . If t he P rogram a s you recei ved it, or any p art of it, co ntains a notice stating that it is gov erned by this License along with a term that is a further restriction, yo u may rem ove that term. If a l icens[...]

  • Page 72

    72 Y ou ar e not required to a ccept thi s Licen se i n order to rec eive o r run a copy of the Progr am. Anci llary propagat ion of a covered work occur rin g solel y as a c onsequ ence of usin g peer - to - p eer transmi ssi on to re ceive a c opy li kewise d oes not requ ire acc eptanc e. How ever , nothing othe r than this License gr ants you p[...]

  • Page 73

    73 the right to gr ant patent subli ce nses in a manner consistent with the requireme nts of this Licen se. Eac h contributo r grants yo u a non - ex clusiv e, world w ide , ro y alty - free p atent l icens e under the c ontri butor's essent ial paten t clai ms, to m ake, use, sell , offer for sal e, im port and other w ise run, modify a nd pr[...]

  • Page 74

    74 copies), or (b) primari ly for and in connection with s pecific products or compil ations that conta in t he covered w ork, u nless you entered int o that arrangem ent, or t hat patent license was gr anted, prior to 28 March 2007. No thing in th is L icen se s hal l be c ons true d a s ex clud ing o r limi ting an y im plie d l ice nse o r other[...]

  • Page 75

    75 If th e Program spe cifi es that a proxy can d ecid e whi ch fut ure versi ons o f th e GNU General Public License can b e use d, that prox y's public state ment of acceptance of a version perman e ntl y aut horizes you t o choo se tha t version f or the P rogram. La ter lic ens e ve rs ions may g ive yo u add itio na l or d iffe rent perm [...]