SLA, inozivikanwawo se "sevhisi-level chibvumirano", chibvumirano chevimbiso pakati pemutengi nemupi webasa nezve izvo mutengi achagamuchira maererano nebasa. Inotarawo muripo kana nguva yadzikira nekuda kwekukanganisa kwemutengesi, zvichingodaro. Muchidimbu, SLA chiziviso nerubatsiro rwekuti nzvimbo yedata kana mupi wekutambira anogonesa munhu angangoita mutengi kuti achabatwa zvakanaka munzira dzese. Mubvunzo ndewokuti iwe unogona kunyora chero chaunoda muSLA, uye zviitiko zvakanyorwa mugwaro iri hazviitike kakawanda. SLA iri kure negwara pakusarudza nzvimbo yedata uye zvirokwazvo haufanirwe kuvimba nayo.
Isu tose takajaira kusaina imwe mhando yezvibvumirano zvinomanikidza zvimwe zvisungo. Iyo SLA haina mutsauko - kazhinji iro risingaite gwaro ringafungidzirwe. Chinhu chega chingangove chisina basa ndeye NDA munzvimbo umo pfungwa ye "chakavanzika chekutengeserana" isipo chaizvo. Asi dambudziko rose nderekuti SLA haibatsiri mutengi pakusarudza mutengesi akakodzera, asi inongokanda guruva mumaziso.
Chii chinonyanya kunyorwa nevatenzi mune yeruzhinji vhezheni yeSLA iyo yavanoratidza kune veruzhinji? Zvakanaka, mutsara wekutanga ndiro izwi rokuti "kuvimbika" kwemuiti - idzi kazhinji nhamba kubva 98 kusvika 99,999%. Muchokwadi, nhamba idzi dzinongori kugadzirwa kwakanaka kwevashambadziri. Pane imwe nguva, apo kutambira kwaive kudiki uye kuchidhura, uye makore aingova chiroto chenyanzvi (pamwe nekuwana Broadband kumunhu wese), chiratidzo chenguva yekutambira chaive chakanyanya, chakakosha zvakanyanya. Ikozvino, kana vatengesi vese vakashandisa, kuwedzera kana kubvisa, midziyo yakafanana, gara pane imwechete backbone network uye nekupa iwo akafanana masevhisi mapakeji, iyo uptime chiratidzo hachishamisi zvachose.
Pane kunyange "chaiyo" SLA?
Ehe, kune akanakisa mavhezheni eSLA, asi ese ese asiri e-standard magwaro uye akanyoreswa uye anopedzwa pakati pemutengi nemutengesi nemawoko. Uyezve, rudzi urwu rweSLA kazhinji rune chekuita nerumwe rudzi rwebasa rekondirakiti kwete masevhisi.
Chii chinofanira kusanganisira SLA yakanaka? Kuisa iyo TLDR, yakanaka SLA igwaro rinoronga hukama pakati pemasangano maviri, iro rinopa rimwe remapato (mutengi) kutonga kwakanyanya pamusoro pekuita. Ndiko kuti, inoshanda sei munyika chaiyo: pane gwaro rinotsanangura maitiro ekudyidzana kwepasi rose uye rinogadzirisa hukama pakati pemapato. Inoisa miganhu, mitemo, uye pachayo inova chitsigiro chepesvedzero iyo mapato maviri anogona kushandisa zvizere. Nekudaro, nekuda kweiyo SLA chaiyo, mutengi anogona kungomanikidza kondirakiti kuti ashande sezvakabvumiranwa, uye zvinobatsira mugadziri kurwisa "zvinoda" zvemutengi anoshanda zvakanyanya izvo zvisina kurongeka nekondirakiti. Zvinotaridza seizvi: "SLA yedu inotaura ichi neicho, ibva pano, tinoita zvese sekubvumirana."
Ndiko kuti, "yakakodzera SLA" = "chibvumirano chakakwana chekupa masevhisi" uye inopa kutonga pamusoro pemamiriro ezvinhu. Asi izvi zvinogoneka chete kana uchishanda "sezvakaenzana".
Izvo zvakanyorwa pawebhusaiti uye izvo zvinomirira muchokwadi zvinhu zviviri zvakasiyana
Kazhinji, zvese zvatichakurukura zvakare ndezvakajairika kushambadzira matiki uye bvunzo yekuteerera.
Kana tikatora vaenzi vepamba vane mukurumbira, saka imwe inopihwa iri nani pane imwe: 25/8 rutsigiro, server uptime 99,9999999% yenguva, boka renzvimbo yavo yedata zvirinani muRussia. Ndokumbira urangarire poindi nezve data centers, tichazodzoka kwazviri pave paya. Zvichakadaro, ngatitaure nezve yakanakira kushivirira nhamba uye izvo munhu anotarisana nazvo kana server yake ichiri kuwira mu "0,0000001% yekutadza."
Nezviratidzo zve98% uye pamusoro, chero kudonha chiitiko chiri pamucheto wekukanganisa kwehuwandu. Zvishandiso zvekushanda uye kubatana zviripo kana kuti hazvisi. Iwe unogona kushandisa hoster ine "kuvimbika" chiyero che50% (maererano neSLA yayo) kwemakore pasina dambudziko rimwe chete, kana iwe unogona "kutadza" kamwe chete pamwedzi kwemazuva akati wandei nevakomana vanoti 99,99%.
Kana nguva yekudonha yasvika (uye, tinokuyeuchidza, munhu wese anodonha rimwe zuva), ipapo mutengi anotarisana nemuchina wemukati wekambani unonzi "rutsigiro", uye chibvumirano chebasa uye SLA zvinoburitswa pachena. Zvinorevei:
- Zvingangodaro, kwemaawa mana ekutanga enguva yekudzikira iwe haungakwanise kuratidza chero chinhu, kunyangwe vamwe vanotambira vanotanga kuverengera mutero (kubhadhara kwemuripo) kubva panguva yekuparara.
- Kana sevha isingawanikwe kwenguva yakareba, unogona kuendesa chikumbiro chekuverengera mutero.
- Uye izvi zvinopihwa kuti dambudziko rakamuka nekuda kwekukanganisa kwemutengesi.
- Kana dambudziko rako rakamuka nekuda kwemunhu wechitatu (mumugwagwa mukuru), zvino zvinoita sekuti "hapana ane mhosva" uye kana dambudziko ragadziriswa inyaya yemhanza yako.
Nekudaro, zvakakosha kuti unzwisise kuti haumbofi wakawana mukana kune timu yeinjiniya, kazhinji unomiswa nemutsara wekutanga werutsigiro, unoenderana newe apo mainjiniya chaiwo achiedza kugadzirisa mamiriro acho. Zvinonzwika kujairika?
Pano, vanhu vazhinji vanovimba neSLA, iyo, inoratidzika, inofanira kukudzivirira kubva mumamiriro ezvinhu akadaro. Asi, kutaura zvazviri, makambani haawanzo pfuura miganhu yegwaro ravo kana kuti anokwanisa kushandura mamiriro acho nenzira yekudzikisa mari yavo. Basa rekutanga reSLA kudzikamisa kusvinura uye kugutsikana kuti kunyangwe pakaitika mamiriro ezvinhu asingatarisirwi, "zvese zvichanaka." Chinangwa chechipiri cheSLA ndechekutaurirana iwo makuru akakosha mapoinzi uye kupa mupi webasa kamuri yekufambisa, ndiko kuti, kugona kufungidzira kutadza kune chimwe chinhu icho mutengesi "asina mhosva."
Panguva imwecheteyo, vatengi vakakura, chokwadi, havana hanya zvachose nezve muripo mukati meSLA. "SLA muripo" ndeyekudzoserwa kwemari mukati memutero zvichienderana nekudzikira kwemidziyo, iyo isingambofi yakavhara kunyange 1% yekurasikirwa kwemari uye mukurumbira. Muchiitiko ichi, zvakanyanya kukosha kune mutengi kuti matambudziko agadziriswe nekukurumidza kupfuura imwe mhando ye "tariff recalculation."
"Mazhinji data centers pasi rose" chikonzero chekunetseka
Isu takaisa mamiriro acho nenhamba huru yedata data kune mupi webasa muchikamu chakasiyana, nekuti kunze kwezvinetso zvekukurukurirana zviri pachena zvinotsanangurwa pamusoro apa, matambudziko asiri pachena anomukawo. Semuenzaniso, mupi webasa wako haakwanise kuwana "yavo" nzvimbo dzedata.
Muchinyorwa chedu chekupedzisira , musimboti wayo kutengeswazve kwehunyanzvi hwevamwe vanhu pasi pechimiro chayo. Ruzhinji rwevagadziri vemazuva ano vanoti vane "nzvimbo dzavo dzedata" mumatunhu mazhinji vatengesi vanoshandisa iyo White Label modhi. Ndiko kuti, ivo panyama havana chekuita neiyo inomisikidzwa data centre muSwitzerland, Germany kana Netherlands.
Kudhumhana kunonakidza kunomuka pano. SLA yako nemupi webasa ichiri kushanda uye inoshanda, asi mutengesi haakwanise neimwe nzira kupesvedzera zvakanyanya mamiriro ezvinhu kana pakaitika tsaona. Iye pachake ari munzvimbo inovimbika kumutengesi wake - nzvimbo yedata, kubva kune iyo racks yemagetsi yakatengwa kutengeswa zvakare.
Nokudaro, kana iwe uchikoshesa kwete chete mazwi akanaka muchibvumirano uye SLA pamusoro pekuvimbika uye basa, asiwo kukwanisa kwemupi webasa kukurumidza kugadzirisa matambudziko, unofanira kushanda zvakananga nemuridzi wezvivako. Muchokwadi, izvi zvinosanganisira kusangana kwakananga zvakananga nedata data.
Sei isu tisingatarise sarudzo kana maDC mazhinji achigona kunge ari ekambani imwe? Zvakanaka, kune makambani akadaro mashoma. Imwe, mbiri, nhatu diki data data kana imwe hombe inogoneka. Asi gumi nemaviri DCs, hafu yacho iri muRussian Federation, uye yechipiri muEurope, inenge isingakwanisi. Izvi zvinoreva kuti kune akawanda mamwe makambani anotengesa kupfuura zvaungafungidzira. Heino muenzaniso wakapfava:
Kufungidzira huwandu hweGoogle Cloud sevhisi data centers. Kune vatanhatu chete vavo muEurope. MuLondon, Amsterdam, Brussels, Helsinki, Frankfurt uye Zurich. Ndiko kuti, panzvimbo dzose dzemigwagwa mikuru. Nekuti data data inodhura, yakaoma uye yakakura kwazvo purojekiti. Zvino rangarira makambani anotambira kubva kumwe kuMoscow ane "gumi nemaviri nzvimbo dzedata muRussia neEurope."
Iko, hongu, hapana vatengesi vakanaka vane vadyidzani muWhite Label chirongwa, pane zvakakwana, uye vanopa masevhisi epamusoro-soro. Vanoita kuti zvikwanisike kuhaya huwandu muEU neRussian Federation panguva imwe chete kuburikidza nehwindo rimwe chete rebrowser, kubvuma kubhadhara muRubles, kwete mumari yekunze, zvichingodaro. Asi kana nyaya dzakatsanangurwa muSLA dzichiitika, vanova vakafanana nhapwa dzemamiriro ezvinhu sewe.
Izvi zvinotiyeuchidza zvakare kuti SLA haina basa kana iwe usinganzwisisi marongero esangano uye kugona kweanopa.
Chii chiri mutsetse wepasi
Kuparara kweserver kunogara kuri chiitiko chisingafadzi uye chinogona kuitika kune chero munhu, chero kupi. Mubvunzo ndewekuti wakawanda sei kutonga pamusoro pemamiriro aunoda. Ikozvino hapana vakawandisa vanotengesa vakananga pamusika, uye kana tikataura nezvevatambi vakakura, saka ivo ndevavo, tichitaura, chete DC imwe kumwe kuMoscow kubva mugumi nemaviri muEurope yose yaunogona kuwana.
Pano, mutengi wega wega anofanira kuzvisarudzira: ini ndinosarudza nyaradzo izvozvi kana kushandisa nguva nesimba ndichitsvaga data data munzvimbo inogamuchirwa muRussia kana Europe, kwandinogona kuisa midziyo yangu kana kutenga huwandu. Muchiitiko chekutanga, mhinduro dzakajairwa dziripo pamusika dzakakodzera. Muchipiri, iwe uchafanirwa kudikitira.
Chekutanga pane zvese, zvinodikanwa kuona kana mutengesi webasa ndiye muridzi akananga wezvivakwa / data data. Vazhinji vatengesi vanoshandisa iyo White Label modhi vanoedza nepavanogona napo kuvanza chimiro chavo, uye mune iyi kesi iwe unofanirwa kutsvaga zvimwe zvisina kunanga zviratidzo. Semuenzaniso, kana "European DCs yavo" vaine mamwe mazita chaiwo uye marogo akasiyana kubva kune zita rekambani yevatengesi. Kana kuti kana izwi rekuti "shamwari" richionekwa pane imwe nzvimbo. Partners = White Label mu95% yezviitiko.
Tevere, iwe unofanirwa kujairana nechimiro chekambani pachayo, kana zviri nani zvakadaro, tarisa midziyo mumunhu. Pakati penzvimbo dzedata, tsika yekushanya kana zvinyorwa zverwendo pawebhusaiti yavo kana bhurogu hazvisi zvitsva (takanyora zvakadaro. ΠΈ ), kwavanotaura nezve data data yavo ine mafoto uye tsananguro yakadzama.
Nenzvimbo dzakawanda dzedata, unogona kuronga kushanya wega kuhofisi uye mini-excursion kuDC pachayo. Ikoko iwe unogona kuongorora dhigirii rekurongeka, pamwe uchakwanisa kutaurirana nemumwe weinjiniya. Zviri pachena kuti hapana munhu achakupa rwendo rwekugadzira kana iwe uchida imwe sevha ye300 RUB / mwedzi, asi kana iwe uchida hukuru hwakakomba, ipapo dhipatimendi rekutengesa rinogona kusangana newe. Somuenzaniso, tinoita nzendo dzakadaro.
Chero zvazvingaitika, pfungwa dzakajairika uye zvinodiwa zvebhizinesi zvinofanirwa kushandiswa. Semuenzaniso, kana iwe uchida dhizaini yakagovaniswa (mamwe maseva ari muRussian Federation, imwe muEU), zvichave nyore uye zvine pundutso kushandisa masevhisi evanotambira vane hukama neEuropean DCs vachishandisa iyo White Label. model. Kana zvivakwa zvako zvese zvichange zvakamisikidzwa pane imwe nguva, ndiko kuti, mune imwe data data, saka zvakakodzera kushandisa imwe nguva pakutsvaga mutengesi.
Nekuti yakajairwa SLA kazhinji haizokubatsira iwe. Asi kushanda nemuridzi wezvivakwa, uye kwete mutengesi, kuchakurumidza kukurumidza kugadzirisa matambudziko anogona kuitika.
Source: www.habr.com