uyarnna labhyatha software

sisttangal mikkappozhum pravarthikkunnundennum labhyamaanennum urappakkaan upayogikkunna softweyaraanu uyarnna labhyathayulla software. uyarnna labhyatha ennathu sisttam pravartthikkunna samayathinte uyarnna sathamaanamaanu. ithu aupachaarikamaayi (1-(daun time/motham samayam)) * 100% ennu nirvachikkaam. aavashyamaaya ettavum kuranja labhyatha oro jolic vyathyaasappedunnunde, sisttangal saadhaaranayaayi 99.999% (5-ombathu) labhyatha nedaan shramikkunnu. eee swabhaavam folt toleransinekkaal durbalamaanu, ithu saadhaaranayaayi 100% labhyatha nalkaan shramikkunnu, ennirunnaalum ganyamaaya vilayum prakadana pizhayum undu.
oru subsistom paraajayappedumbol athinte prakadanam, yadhaartha paraajayasamayathu sisttathinte avasthayodu aduthulla oru samsthaanathu sevanam punaraarambhikkaanulla kazhivu, sevanathe badhikkunna mattu jolikal (software upgraded allengil konfigareshan mattangal polullava) cheyyaanulla kazhivu enniva adisthaanamaakkiyaanu uyarnna labhyatha software alakkunnathu. labhyathaye badhikkunna ellah thakaraarukalum-hardware, software, konfigareshan enniva labhyatha paramavadhi vardhippikkunnathinu uyarnna labhyatha software vazhi pariharikkendathundu.
savisheshathakal.
saadhaarana uyarnna labhyatha software inipparayunna savisheshathakal nalkunnu
hardware, software redendency pravarthanakshamamaakkuka
eee savisheshathakalil iva ulppedunnu
athil nalkunna ellah abhyarthanakalum niravettaan kazhiyunnillengil oru sevanam labhyamalla. oru sisttathinte "skeyil-outtu" property ennathu vardhichuvarunna demand pariharikkunnathinum sisttam adachupoottaathe thanne eee koppikalilekku (looad balancing (computing)) incoming varkkukal kaaryakshamamaayi vitharanam cheiyunnathinumaayi oru subsistathinte onniladhikam koppikal srishtikkaanulla kazhivine soochippikkunnu. uyarnna labhyathayulla software sevanathe thadassappeduthaathe skeyil-outtu praapthamakkum.
sajeevamaaya/staandbai ashayavinimayam (prathyekichu check pooyinting) praapthamaakkuka
sajeevamaaya subsistangal staandbai subsistangalumaayi ashayavinimayam nadathendathundu, sajeevamaayava upekshichidathu staandbai ettedukkaan thayyaaraanenn urappakkaan. eee dauthyathil sajeevamaaya subsistangale sahaayikkunnathin uyarnna labhyathayulla softwearinu anaavashya sandesham, ivant cukal thudangiya ashayavinimaya amoorthathakal nalkaan kazhiyum. koodaathe, "check pooyinting" enna oru pradhana ashayam valare labhyamaya softwearinu maathramullathaan. oru chekkpoyint samvidaanathil, sajeevamaaya subsistom athinte ellah nirnaayaka avasthakalum thirichariyukayum eee avasthayile eathenkilum mattangalkkoppam staandbai idaykkide update cheyyukayum cheiyunnu. eee ashayam saadhaaranayaayi oru distributed haash tabley amoorthamaakkappedunnu-sajeevamayavar qee/moolya rekhakal tableylake ezhuthukayum sajeeva staandbai sub sisttangalum athil ninnu vaayikkukayum cheiyunnu. oru "claude" distributed haash table ninnu vyathyasthamayi (coord (piyar-tuu-piyar), cademlia muthalaayava.) oru chekkpoyint poornnamaayum aavarthikkunnu. athaayath, oru pakarpp pravarthikkunnidatholam kaalam "chekkpoyint" haash table ellah rekhakalum vaayikkaan kazhiyum. [aaplikkeshan chekkpoyint] ennu vilikkunna mattoru saankethikavidya, idaykkide oru prograaminte muzhuvan avasthayum samrakshikkunnu.
sevanathilulla naveekaranangal praapthamaakkuka
sevanathe tharamthaazhthaathe software naveekarikkaanulla kazhivaanu sevana software upgraded. rolling" upgraded ennu vilikkappedunnava nadappilaakkikkond ithu saadhaaranayaayi anaavashya samvidaanangalil nadappilaakkunnu-active sevanam nalkumbol staandbai upgraded cheyyuka, paraajayappeduka, thudarnnu pazhaya active upgraded cheyyuka. puthiya pathipp parajayappettaal softweyarinte pazhaya pathippilekkum konfigareshanilekkum vegathil madangaanulla kazhivaanu mattoru pradhana savisheshatha.
staandbai latensi kuraykkukayum staandbai krithyatha urappakkukayum cheyyuka
staandbai latensiye nirvachichirikkunnathu oru staandbai sajeevamakaan parayunnathinum athu yadhaarthathil sevanam nalkunnathinum edayilulla samayamaan. sajeevamaaya sisttam chekkposttukalodu prathikarikkunnathin aantharika avastha sajeevamaayi update cheiyunnavayaanu "hoott" staandbai sisttangal, ithu millisecond daun samayathinu kaaranamaakunnu. colled" staandbai sisttangal sajeevamaaya paraajayappedunnathuvare offlainilaanu, saadhaaranayaayi oru "baseline" avasthayil ninnu punararambhikkunnu. udaaharanathinu, adisthaana physical mesheen parajayappettaal pala claude solyooshanukalum mattoru physical mesheenil oru vertual mesheen punararambhikkum. staandbai latensiyil "colled" parajayam 30 + second muthal niravadhi minitt vare aakam. avasaanamaayi, pravartthikkunna ellah sisttangalum ulkkollunna oru anoupachaarika padamaanu "warm" staandbai, ennaal sajeevamaakunnathin munbu kurachu aantharika prosessing nadathendathundu. udaaharanathinu, oru ooshmalamaaya staandbai samvidaanam kuranja munganana jolikal kaikaaryam cheythekkaam-sajeevamayavar paraajayappedumbol athu eee jolikal nirthalaakkukayum sevanam punaraarambhikkunnathin munbu sajeevamaayavarude chekkpoyint cheytha avastha vaayikkukayum cheiyunnu. ooshmala staandbai latensikal ethra daatta chekkpoyint cheythirikkunnu ennathine aasrayichirikkunnu, pakshe saadhaaranayaayi kurachu second latensi undu.
sisttam architecture.
paraajayangalude vyaapthi kuraykkunnathinum nirddishta parajaya reethikal kaikaaryam cheiyunnathinum roopakalppana cheytha sankeernamaaya sisttam aarkkitekcharukal srishtikkaan uyarnna labhyathayulla software enchineeyarmaare sahayikkum. oru "saadhaarana" paraajayatthe software architecturinu kaikaaryam cheyyaan kazhiyunna onnaayi nirvachikkunnu, athesamayam oru "duranta" paraajayatthe kaikaaryam cheyyaatha onnaayi nirvachikkunnu. athinaal oru vinashakaramaaya parajayam sevana thakaraarin kaaranamaakunnu. ennirunnaalum, duranthaparamaaya parajayam pariharichaaludan thanne inn-sarvees avasthayilekku swamedhayaa madangunnathiloode softwearinu labhyatha valareyadhikam vardhippikkaan kazhiyum.
ettavum lalithamaaya konfigareshan (allengil "redendency model") 1 active, 1 staandbai allengil 1 + 1 aanu. mattoru saadhaarana konfigareshan n + 1 (n active, 1 staandbai) aanu, ithu kurachu staandbai subsistangal ullathiloode motham sisttam chelavu kuraykkunnu. chila samvidaanangal ellah pravartthanangalum nadathunna oru maathruka upayogikkunnu, "staandbai" subsistangal nirantharam saadhookarikkunnathinte gunamundu.
parambaraagatha "active + staandbai" namakaranam "active + staandbai + aidil" (udha.jii. 5 + 1 + 1). saadhaaranayaayi, "colled staandbai" allengil "nishkriya" subsistangal kuranja munganana jolikalkkaayi sajeevamaan. chilappol eee samvidaanangal bhoomishaasthraparamaaya redundancy enna thanthrathil avayude anaavashya jodikalil ninnu valare akaleyaan sthithicheyyunnathu. anaavasyamaaya yanthrangale verthirikkunnathiloode bhauthika-praadeshika sambhavangalil (thee, vellapokkam, bhookambam) ninnulla sevana nashtam ozhivakkaan eee vaasthuvidya shramikkunnu.
hardware thakaraarukalil ninnu softweyarine verthirichariyaan uyarnna labhyatha software vazhi sankeernamaaya nayangal vyakthamakkaanum vyakthigatha software prakriyakal, muzhuvan software staakkukal allengil muzhuvan sisttangalum samayabandhithamayi punaraarambhikkaan sramikkaanum kazhiyum.
vyavasaayathil upayogikkuka.
kazhinja 20 varshathinidayil telecommunication nettvarkkukalum mattu sankeernamaaya software samvidaanangalum bisinessinteyum vinoda pravarthanangaludeyum anivaarya bhagangalaayi mariyirikkunnu.
athe samayam [sambadvyavastha maandyathilaayirikke], ekadesham 60 sathamaanam-athaayath 10 ll aarr bisinasukalkku-avarude dauthya-nirnaayaka line-oof-bisinus aaplikkeshanukalkku naalu ombathu allengil anchu ombathu labhyathayum pravartthana samayavum aavasyamaanu.
prathikarichavaril 9 sathamaanavum, athaayath 10 kambanikalil orennavum, avarkk anchu ombathu aaptaimukalil kooduthal aavasyamaanennu parayunnu. athinaal athinte ardham, pravartthanarahithamalla ennathaanu. mattoru vidhathil paranjaal, ningalkk yadhaarthathil bullatt proof, bomb proof aaplikkeshanukal, hardware samvidaanangal enniva undaayirikkanam. appol ningalkariyam, ningal enthaanu upayogikkunnathu? ningalkk uyarnna labhyatha klasttarukal undu allengil ningalkk kooduthal chelaveriyathum sankeernavumaaya folt tolerance serverukal undu."
telecommunication network takaraar telecom daathaakkalude varumaanathil ganyamaaya nashtatthinu kaaranamakum ennathinaal uyarnna labhyathayilulla software telecommunication upakaranangalude oru pradhana gadakamaanu, koodaathe adiyanthara sevanangalilekkulla telephone axus oru pradhana pothu suraksha prasnamaanu.
prathirodham/sainikam kroo, aalillaatha vaahanangalkk labhyatha nalkunnathinulla chelavukuranja maargamaayi aduthide uyarnna labhyatha software prathirodha padhathikalil praveshichu.
sthalam bahirakasha parithasthithikalil noonn-radiation hardend upakaranangal upayogikkunnathinu uyarnna labhyatha software nirddeshikkappettittund. radiation haard cheytha electronics oof-dhii-shelf upakaranangalekkaal ganyamaayi kooduthal chelaveriyathum kuranja prakadanamullathumaanu. ennaal orotta allengil oru jody raadu-hardend kantrolarukalil pravartthikkunna uyarnna labhyatha softwearinu anaavasyamaaya uyarnna prakadanamulla noonn-raadu-haard computerukal kaikaaryam cheyyaan kazhiyum, ithu paraajayappedukayum oru takaraar undaayal avaa reesett cheyyukayum cheyyum.
meghathil upayogikkuka.
saadhaarana claude sevanangal linux polulla oru staanderd server oesu pravarthippikkunna oru koottam network cheytha computerukal (saadhaarana oru vertual mesheen) nalkunnu. computerukalkku palappozhum ore dattaa centarinullile mattu sandarbhangalumaayi soujanyamaayum (vaadakakkaaran network) phees eedaakki puram computerukalumaayum ashayavinimayam nadatthaan kazhiyum. claude infrastructure lalithamaaya thettu kandethukayum vertual mesheen thalatthil punararambhikkukayum cheythekkaam. ennirunnaalum, punaraarambhikkunnathin niravadhi minittukal eduthekkaam, athinte falamaayi labhyatha kurayum. koodaathe, claude sevanagalkk vertual mesheenukalile software parajayangal kandethaan kazhiyilla. claude vertual mesheenukalkkullil pravartthikkunna uyarnna labhyathayulla softwearinu sekkantukalkkullil softweyarinteyum (vertual mesheen) paraajayangalum kandethaanum staandbai vertual mesheenukal sevanam ettedukkaan thayyaaraanenn urappakkaan checkpointing upayogikkaanum kazhiyum.
maanadandangal.
sevana labhyatha phooram aaplikkeshan-avabodhamulla uyarnna labhyathaykkulla maanadandangal nirvachikkunnu.

