{"id":86480,"date":"2020-06-25T19:42:06","date_gmt":"2020-06-25T17:42:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/soedinite-s-uspehom"},"modified":"2020-06-25T19:42:06","modified_gmt":"2020-06-25T17:42:06","slug":"soedinite-s-uspehom","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/soedinite-s-uspehom","title":{"rendered":"Spojte. \u00dasp\u011b\u0161n\u011b","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tradi\u010dn\u00ed datov\u00e9 p\u0159enosov\u00e9 kan\u00e1ly budou je\u0161t\u011b mnoho let plnit svou funkci, av\u0161ak cenov\u011b p\u0159ijateln\u00e9 se st\u00e1vaj\u00ed pouze v hust\u011b os\u00eddlen\u00fdch oblastech. V jin\u00fdch podm\u00ednk\u00e1ch jsou pot\u0159eba jin\u00e1 \u0159e\u0161en\u00ed, kter\u00e1 mohou poskytnout spolehliv\u00e9 vysokorychlostn\u00ed p\u0159ipojen\u00ed za rozumnou cenu.
\nZ tohoto \u010dl\u00e1nku se dozv\u00edte, jak \u0159e\u0161it probl\u00e9my s p\u0159ipojen\u00edm tam, kde jsou tradi\u010dn\u00ed kan\u00e1ly drah\u00e9 nebo nedostupn\u00e9. Jak\u00e9 typy \u0159e\u0161en\u00ed existuj\u00ed, \u010d\u00edm se li\u0161\u00ed a jak vybrat to prav\u00e9 pro konkr\u00e9tn\u00ed \u00fakol.<\/p>\n

\"Spojte.
\n<\/a><\/noindex><\/p>\n

Existuje n\u011bkolik t\u0159\u00edd technologi\u00ed, kter\u00e9 si \u010din\u00ed n\u00e1rok na \u0159e\u0161en\u00ed probl\u00e9m\u016f s p\u0159ipojen\u00edm tam, kde chyb\u00ed tradi\u010dn\u00ed komunika\u010dn\u00ed kan\u00e1ly nebo jsou ekonomicky nevhodn\u00e9. Vyrovn\u00e1va\u010de, agreg\u00e1tory a sum\u00e1tory na pohled d\u011blaj\u00ed to sam\u00e9, av\u0161ak z\u00e1sadn\u011b se li\u0161\u00ed kvalitou \u0159e\u0161en\u00ed \u00faloh. Poj\u010fme se na to pod\u00edvat.<\/p>\n

Vyrovn\u00e1va\u010de<\/h3>\n

\nKdykoli m\u016f\u017ee fungovat pouze jeden kan\u00e1l. To \u0159e\u0161\u00ed ot\u00e1zku spolehlivosti pomoc\u00ed z\u00e1lohov\u00e1n\u00ed, ale nezvy\u0161uje rychlost. P\u0159itom v\u011bt\u0161ina vyrovn\u00e1va\u010d\u016f nezkoum\u00e1, kter\u00fd kan\u00e1l je rychlej\u0161\u00ed, a jednodu\u0161e p\u0159ep\u00edn\u00e1 na ten, kter\u00fd funguje. 80 % \u0159e\u0161en\u00ed na trhu, kter\u00e9 pou\u017e\u00edvaj\u00ed n\u011bkolik SIM karet, jsou pr\u00e1v\u011b takov\u00e9 vyrovn\u00e1va\u010de \u2013 p\u0159i v\u00fdpadku sign\u00e1lu na jednom kan\u00e1lu automaticky p\u0159ep\u00ednaj\u00ed na jin\u00fd. <\/p>\n

\"Spojte.
\n
\nExistuje samostatn\u00e1 p\u0159echodn\u00e1 t\u0159\u00edda mezi vyrovn\u00e1va\u010dem a agreg\u00e1torem. Rychlost p\u0159i n\u011bkolika spojen\u00edch, nap\u0159\u00edklad od n\u011bkolika u\u017eivatel\u016f sou\u010dasn\u011b, bude vy\u0161\u0161\u00ed ne\u017e na jak\u00e9mkoli jednom kan\u00e1lu. Takov\u00fd p\u0159\u00edstup p\u0159i spr\u00e1vn\u00e9 realizaci ani nevy\u017eaduje infrastrukturu pro terminaci provozu a \u0161iroce se pou\u017e\u00edv\u00e1 v kategorii levn\u00fdch sm\u011brova\u010d\u016f. \u0158e\u0161en\u00ed je schopn\u00e9 poskytnout celkov\u011b vysokou rychlost, ale ka\u017ed\u00fd jednotliv\u00fd u\u017eivatel z\u00edsk\u00e1 rychlost dostupnou pouze na jednom kan\u00e1lu. Stahov\u00e1n\u00ed torrent\u016f na takov\u00e9m za\u0159\u00edzen\u00ed je velmi pohodln\u00e9.<\/p>\n

\u0158e\u0161en\u00fd probl\u00e9m<\/b><\/p>\n

Zv\u00fd\u0161en\u00ed spolehlivosti. Z\u00e1lohov\u00e1n\u00ed p\u0159enosov\u00fdch kan\u00e1l\u016f. <\/p>\n

Kl\u00ed\u010dov\u00e1 vlastnost<\/b><\/p>\n

    \n
  1. Rychlost p\u0159ep\u00edn\u00e1n\u00ed z nefunk\u010dn\u00edho kan\u00e1lu na funk\u010dn\u00ed. \u010c\u00edm rychleji za\u0159\u00edzen\u00ed rozpozn\u00e1, \u017ee jeden kan\u00e1l nen\u00ed funk\u010dn\u00ed a je t\u0159eba p\u0159epnout na jin\u00fd \u2013 t\u00edm l\u00e9pe.<\/li>\n
  2. Prioritn\u00ed provoz p\u0159es nejrychlej\u0161\u00ed kan\u00e1l.<\/li>\n<\/ol>\n

    \nV\u00fdhody<\/b><\/p>\n

      \n
    1. Cena za\u0159\u00edzen\u00ed. Nejlevn\u011bj\u0161\u00ed \u0159e\u0161en\u00ed na trhu.<\/li>\n
    2. Nevy\u017eaduje mezilehlou infrastrukturu terminov\u00e1n\u00ed provozu<\/li>\n
    3. Nevy\u017eaduje kvalifikovan\u00fd person\u00e1l pro pou\u017e\u00edv\u00e1n\u00ed a \u00fadr\u017ebu<\/li>\n<\/ol>\n

      \nNev\u00fdhody<\/b><\/p>\n

        \n
      1. Nen\u00ed zde kontrola kvality kan\u00e1lu. Za\u0159\u00edzen\u00ed se m\u016f\u017ee p\u0159epnout na kan\u00e1l se slab\u00fdm spojen\u00edm, zat\u00edmco sousedn\u00ed kan\u00e1l m\u016f\u017ee b\u00fdt mnohem rychlej\u0161\u00ed.<\/li>\n<\/ol>\n

        \nC\u00edlov\u00e9 pou\u017eit\u00ed<\/b><\/p>\n

        Slu\u017eby, kter\u00e9 nevy\u017eaduj\u00ed vysokou p\u0159enosovou rychlost a jsou p\u0159ipraveny na kr\u00e1tkodob\u00e9 v\u00fdpadky<\/p>\n

        Agreg\u00e1tory<\/h3>\n

        \nTento term\u00edn poch\u00e1z\u00ed z anglick\u00e9ho slova aggregate. V kontextu syst\u00e9m\u016f p\u0159enosu dat se pou\u017e\u00edv\u00e1 ji\u017e velmi dlouho a uplat\u0148uje se v \u0159e\u0161en\u00edch pro spojov\u00e1n\u00ed fyzick\u00fdch dr\u00e1tov\u00fdch a optick\u00fdch datov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f. <\/p>\n

        Jedn\u00e1 se o pokro\u010dilej\u0161\u00ed syst\u00e9my ve srovn\u00e1n\u00ed s vyrovn\u00e1va\u010di z\u00e1t\u011b\u017ee \u2013 vyu\u017e\u00edvaj\u00ed sou\u010dasn\u011b n\u011bkolik datov\u00fdch kan\u00e1l\u016f. Skrze ka\u017ed\u00fd kan\u00e1l se vytvo\u0159\u00ed spojen\u00ed s mezilehl\u00fdm serverem, na kter\u00e9m se provoz spojuje a p\u0159ed\u00e1v\u00e1 d\u00e1le c\u00edlov\u00e9 slu\u017eb\u011b. Proto, pokud vypadnou i n\u011bkolik kan\u00e1l\u016f, p\u0159enos dat se nep\u0159eru\u0161\u00ed. Tedy zde nen\u00ed pojem p\u0159ep\u00edn\u00e1n\u00ed z jednoho kan\u00e1lu na druh\u00fd. D\u00e1le je t\u0159eba poznamenat, \u017ee u bezdr\u00e1tov\u00fdch datov\u00fdch kan\u00e1l\u016f, v rozporu se za\u017eit\u00fdm n\u00e1zorem, v\u011bt\u0161ina takov\u00fdch \u0159e\u0161en\u00ed nezvy\u0161uje rychlost nebo ji zvy\u0161uje jen m\u00e1lo. Nap\u0159\u00edklad 4 kan\u00e1ly po 10 Mbit\/s by m\u011bly v sou\u010dtu poskytnout 40 Mbit, av\u0161ak agreg\u00e1tory v L3 tunelu poskytuj\u00ed p\u0159ibli\u017en\u011b 12-18. To jsou maxim\u00e1ln\u00ed hodnoty zv\u00fd\u0161en\u00ed rychlosti za ide\u00e1ln\u00edch podm\u00ednek. Doch\u00e1z\u00ed k tomu v d\u016fsledku velk\u00e9 nerovnom\u011brn\u00e9 entropie v kan\u00e1lech. Netrivi\u00e1ln\u00ed \u00fakol je slou\u010dit kan\u00e1ly s r\u016fznou p\u0159enosovou kapacitou a tak\u00e9 r\u016fzn\u00fdmi zpo\u017ed\u011bn\u00edmi. <\/p>\n

        To je jist\u011b lep\u0161\u00ed ne\u017e deset, ale v\u00fdrazn\u011b m\u00e9n\u011b ne\u017e o\u010dek\u00e1van\u00fdch \u010dty\u0159icet. Ne\u010destn\u00ed v\u00fdrobci se sna\u017e\u00ed skr\u00fdt tuto nev\u00fdhodu pomoc\u00ed kombinace proxy serveru a zm\u011bny zdrojov\u00e9 adresy. V tomto p\u0159\u00edpad\u011b se rychlost n\u011bkolikan\u00e1sobn\u011b zvy\u0161uje, av\u0161ak funguje to pouze tehdy, kdy\u017e je spojen\u00ed iniciov\u00e1no z za\u0159\u00edzen\u00ed. Pokud je spojen\u00ed iniciov\u00e1no z vn\u011bj\u0161\u00edho sv\u011bta, tento trik ji\u017e nefunguje. Pokud chcete slou\u010dit dv\u011b s\u00edt\u011b, nap\u0159\u00edklad prodejn\u00ed m\u00edsto s centr\u00e1ln\u00edm kancel\u00e1\u0159\u00ed nebo vlak s centr\u00e1ln\u00ed s\u00edt\u00ed \u2013 agreg\u00e1tor si s t\u00edmto \u00fakolem neporad\u00ed, proto\u017ee rychlost na za\u0159\u00edzen\u00ed bude 10kr\u00e1t ni\u017e\u0161\u00ed ne\u017e z za\u0159\u00edzen\u00ed. Krom\u011b toho, p\u0159i pou\u017eit\u00ed v s\u00edt\u00edch mobiln\u00edch oper\u00e1tor\u016f, takov\u00e9 manipulace zaru\u010den\u011b vyvol\u00e1vaj\u00ed ot\u00e1zky ze strany regula\u010dn\u00edch org\u00e1n\u016f ohledn\u011b syst\u00e9mu operativn\u011b p\u00e1trac\u00edch akc\u00ed (SOPR).<\/p>\n

        \u0158e\u0161en\u00ed pro agregaci bezdr\u00e1tov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f jsou relativn\u011b jednoduch\u00e1, nevy\u017eaduj\u00ed investice do n\u00e1kladn\u00fdch v\u00fdzkum\u016f. V\u011bt\u0161ina z nich obsahuje pouze hotov\u00e1 \u0161iroce popsan\u00e1 Open Source \u0159e\u0161en\u00ed. V\u00fdrobci d\u00e1vaj\u00ed p\u0159ednost vytvo\u0159en\u00ed jednoduch\u00e9ho WEB rozhran\u00ed a vyd\u00e1vaj\u00ed to za inovativn\u00ed v\u00fdvoj. Takov\u00fd p\u0159\u00edstup je v Rusku velmi roz\u0161\u00ed\u0159en\u00fd.<\/p>\n

        \"Spojte.
        \n
        \n\u0158e\u0161en\u00fd probl\u00e9m<\/b>
        \nZv\u00fd\u0161en\u00ed spolehlivosti. M\u00edrn\u00e9 zv\u00fd\u0161en\u00ed rychlosti.<\/p>\n

        Kl\u00ed\u010dov\u00e1 vlastnost<\/b>
        \nVyu\u017eit\u00ed agregovan\u00fdch kan\u00e1l\u016f. Pr\u016fm\u011brn\u00e1 maxim\u00e1ln\u00ed rychlost p\u0159enosu dat. <\/p>\n

        Nev\u00fdhody<\/b><\/p>\n

          \n
        1. Cena za\u0159\u00edzen\u00ed. Mnohokr\u00e1t dra\u017e\u0161\u00ed ne\u017e oby\u010dejn\u00e9 vyva\u017eova\u010de.<\/li>\n
        2. P\u0159\u00edtomnost m\u011bs\u00ed\u010dn\u00edch plateb, proto\u017ee vy\u017eaduje mezilehlou infrastrukturu pro terminaci provozu.<\/li>\n
        3. K \u00fadr\u017eb\u011b je pot\u0159eba speci\u00e1ln\u011b vy\u0161kolen\u00fd technick\u00fd person\u00e1l.<\/li>\n
        4. N\u00edzk\u00e9 vyu\u017eit\u00ed p\u0159enosov\u00fdch kan\u00e1l\u016f v L3 tunelu.<\/li>\n
        5. Pou\u017eit\u00ed proxy-servery<\/a> d\u00e1v\u00e1 nesymetrickou s\u00ed\u0165 a adresaci.<\/li>\n<\/ol>\n

          \nV\u00fdhody<\/b><\/p>\n

            \n
          1. Velmi dob\u0159e \u0159e\u0161\u00ed \u00fakol z\u00e1lohov\u00e1n\u00ed p\u0159enosov\u00fdch kan\u00e1l\u016f.<\/li>\n
          2. P\u0159i pou\u017eit\u00ed proxy serveru d\u00e1v\u00e1 vysokou rychlost p\u0159enosu dat, pokud je spojen\u00ed iniciov\u00e1no z za\u0159\u00edzen\u00ed.<\/li>\n<\/ol>\n

            C\u00edlov\u00e9 pou\u017eit\u00ed<\/b>
            \nSlu\u017eby, kter\u00e9 pot\u0159ebuj\u00ed stabiln\u00ed spojen\u00ed, nevy\u017eaduj\u00ed p\u0159\u00edtomnost L3 tunelu. Soukrom\u00e9 dom\u00e1cnosti, jednoduch\u00e9 topologie, kter\u00e9 nevy\u017eaduj\u00ed symetrickou s\u00ed\u0165. Nepou\u017eiteln\u00e9 pro pr\u016fmyslov\u00e9 objekty a s\u00edt\u011b mobiln\u00edch oper\u00e1tor\u016f. <\/p>\n

            S\u010d\u00edt\u00e1\u010de<\/h3>\n

            \nV kontextu datov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f se tento term\u00edn objevil v Rusku teprve p\u0159ed n\u011bkolika lety. Tato \u0159e\u0161en\u00ed jsou velmi podobn\u00e1 agreg\u00e1tor\u016fm, ale radik\u00e1ln\u011b se li\u0161\u00ed t\u00edm, \u017ee, p\u0159i zachov\u00e1n\u00ed v\u0161ech jejich v\u00fdhod, postr\u00e1daj\u00ed v\u0161echny jejich nedostatky. <\/p>\n

            \"Spojte.
            \n
            \n             Podrobn\u011bj\u0161\u00ed sch\u00e9ma a princip fungov\u00e1n\u00ed<\/a><\/noindex><\/p>\n

            Pokud je pot\u0159eba \u0161ifrov\u00e1n\u00ed od samotn\u00e9ho za\u0159\u00edzen\u00ed po server terminace \u2013 tato mo\u017enost, stejn\u011b jako komprese za b\u011bhu, je dostupn\u00e1 u vysp\u011bl\u00fdch technologi\u00ed na trhu.<\/p>\n

            Pro L3 tunely m\u00e1 vyu\u017eit\u00ed datov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f u sumariz\u00e1tor\u016f p\u0159ibli\u017en\u011b 90 %. Nap\u0159\u00edklad tam, kde agreg\u00e1tor poskytne 40 Mbit\/s, sumariz\u00e1tor bez probl\u00e9m\u016f nab\u00eddne 70 Mbit\/s. Proto se mu tak\u00e9 \u0159\u00edk\u00e1 sumariz\u00e1tor. Je to velmi slo\u017eit\u00fd \u00fakol a vy\u017eaduje v\u00e1\u017en\u00fd v\u00fdzkum.
            \n\u00dasp\u011b\u0161n\u00e9 zv\u00fd\u0161en\u00ed rychlosti v L3 tunelu p\u0159in\u00e1\u0161\u00ed rovnom\u011brnou topologii s\u00edt\u011b bez \"v\u00fdjimek\".<\/p>\n

            Na rozd\u00edl od agreg\u00e1tor\u016f, sumariz\u00e1tory nemaj\u00ed omezen\u00ed v oblasti pou\u017eit\u00ed. Mohou b\u00fdt vyu\u017e\u00edv\u00e1ny na jak\u00fdchkoliv typech datov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f a v jak\u00e9koliv topologii s\u00edt\u011b. S\u00ed\u0165 vytv\u00e1\u0159en\u00e1 sumariz\u00e1torem je zcela standardn\u00ed a na rozd\u00edl od agreg\u00e1tor\u016f nezp\u016fsob\u00ed b\u011bhem provozu \u017e\u00e1dn\u00e9 ot\u00e1zky ze strany regula\u010dn\u00edch org\u00e1n\u016f ani skryt\u00e9 probl\u00e9my.<\/p>\n

            \u0158e\u0161en\u00fd probl\u00e9m<\/b>
            \nZv\u00fd\u0161en\u00ed spolehlivosti. N\u00e1sobn\u00e9 zv\u00fd\u0161en\u00ed rychlosti.<\/p>\n

            Kl\u00ed\u010dov\u00e1 vlastnost<\/b>
            \nVyu\u017eit\u00ed agregovan\u00fdch kan\u00e1l\u016f. Pr\u016fm\u011brn\u00e1 maxim\u00e1ln\u00ed rychlost p\u0159enosu dat. <\/p>\n

            Nev\u00fdhody<\/b><\/p>\n

              \n
            1. Existence m\u011bs\u00ed\u010dn\u00edch plateb, proto\u017ee vy\u017eaduje mezin\u00e1rodn\u00ed infrastrukturu pro terminaci provozu.<\/li>\n
            2. Cena srovnateln\u00e1 s agreg\u00e1torem<\/li>\n<\/ol>\n

              \nV\u00fdhody<\/b><\/p>\n

                \n
              1. Vysoce efektivn\u00ed \u0159e\u0161en\u00ed pro probl\u00e9m z\u00e1lohov\u00e1n\u00ed datov\u00fdch p\u0159enosov\u00fdch kan\u00e1l\u016f. <\/li>\n
              2. N\u00e1sobn\u00e9 zv\u00fd\u0161en\u00ed rychlosti a propustnosti kan\u00e1l\u016f v L3 tunelu.<\/li>\n<\/ol>\n

                C\u00edlov\u00e9 pou\u017eit\u00ed<\/b>
                \nKommer\u010dn\u00ed, pr\u016fmyslov\u00e9 a st\u00e1tn\u00ed slu\u017eby, kter\u00e9 vy\u017eaduj\u00ed vysokou rychlost a spolehlivost p\u0159enosu dat. Neexistuj\u00ed \u017e\u00e1dn\u00e1 omezen\u00ed na pou\u017eit\u00ed.<\/p>\n

                Komplexn\u00ed \u0159e\u0161en\u00ed<\/h3>\n

                \nTechnologie zvy\u0161ov\u00e1n\u00ed spolehlivosti a propustnosti by krom\u011b sv\u00e9 hlavn\u00ed funkce m\u011bly b\u00fdt snadno spravovateln\u00e9 a \u0161k\u00e1lovateln\u00e9, b\u00fdt komplexn\u00edmi \u0159e\u0161en\u00edmi probl\u00e9m\u016f koncov\u00e9ho u\u017eivatele a ne\u0159e\u0161it \u00fakol fragment\u00e1rn\u011b, p\u0159en\u00e1\u0161ej\u00edc\u00ed v\u011bt\u0161inu infrastrukturn\u00edch a provozn\u00edch \u00faloh na kompetence z\u00e1kazn\u00edka. <\/p>\n

                Co je pot\u0159eba, aby \u0159e\u0161en\u00ed bylo komplexn\u00ed?<\/p>\n

                1. Jednotn\u00fd syst\u00e9m \u0159\u00edzen\u00ed s\u00edt\u011b<\/b>
                \nUmo\u017e\u0148uje spravovat v\u0161echna za\u0159\u00edzen\u00ed v s\u00edti - centr\u00e1ln\u011b aktualizovat firmware a konfiguraci, vyhodnocovat varov\u00e1n\u00ed a hav\u00e1rie, vyva\u017eovat z\u00e1t\u011b\u017e s\u00edt\u011b. Transparentn\u011b \u0159\u00eddit v\u0161echny funkce jednotliv\u00fdch za\u0159\u00edzen\u00ed a v n\u011bkter\u00fdch p\u0159\u00edpadech vid\u011bt um\u00edst\u011bn\u00ed za\u0159\u00edzen\u00ed a jeho kl\u00ed\u010dov\u00e9 charakteristiky na interaktivn\u00ed map\u011b.
                \nKvalitn\u00ed syst\u00e9m spr\u00e1vy s\u00edt\u011b \u0161et\u0159\u00ed n\u00e1klady na in\u017een\u00fdrsk\u00fd person\u00e1l, zkracuje dobu \u0159e\u0161en\u00ed probl\u00e9m\u016f a d\u011bl\u00e1 v\u0161e, co obvykle d\u011bl\u00e1 \"mozek\".<\/p>\n

                2. Spolehlivost<\/b>
                \nTechnologie p\u0159edpokl\u00e1d\u00e1 pou\u017eit\u00ed serveru pro terminaci provozu, kter\u00fd je v\u017edy um\u00edst\u011bn mezi za\u0159\u00edzen\u00edm a c\u00edlov\u00fdm servisn\u00edm syst\u00e9mem. M\u016f\u017ee se st\u00e1t jedin\u00fdm bodem selh\u00e1n\u00ed. Pokud \u0159e\u0161en\u00ed automaticky neum\u00ed p\u0159erozd\u011blovat provoz mezi za\u0159\u00edzen\u00edmi a servery terminace, zabezpe\u010dovat automatick\u00fd failover, nedoporu\u010duje se pou\u017e\u00edvat pro komer\u010dn\u00ed \u00fa\u010dely.<\/p>\n

                Je to velmi d\u016fle\u017eit\u00e9. Bez automatick\u00e9ho syst\u00e9mu z\u00e1lohov\u00e1n\u00ed se i nejrychlej\u0161\u00ed s\u00ed\u0165 d\u0159\u00edve \u010di pozd\u011bji prom\u011bn\u00ed v s\u00ed\u0165 \"cihel\".<\/p>\n

                3. Kvalitn\u00ed monitoring<\/b>
                \nNaprost\u00e1 v\u011bt\u0161ina \u0159e\u0161en\u00ed nen\u00ed schopna registrovat kl\u00ed\u010dov\u00e9 metriky v\u00fdkonu za\u0159\u00edzen\u00ed, kdy\u017e nejsou v s\u00edti. To znamen\u00e1, \u017ee pokud nastane probl\u00e9m se s\u00edt\u00ed, oper\u00e1tor syst\u00e9mu nebude schopen prov\u00e9st retrospektivn\u00ed anal\u00fdzu za\u0159\u00edzen\u00ed a pochopit, co bylo p\u0159\u00ed\u010dinou probl\u00e9mu.
                \nVe kritick\u00e9 infrastruktu\u0159e mus\u00ed za\u0159\u00edzen\u00ed registrovat maxim\u00e1ln\u00ed mno\u017estv\u00ed metrik p\u0159es komunika\u010dn\u00ed kan\u00e1ly na p\u0159\u00edpad \"anal\u00fdzy po katastrof\u011b\", um\u011bt je uchov\u00e1vat a p\u0159en\u00e1\u0161et do centr\u00e1ln\u00edho syst\u00e9mu, ani\u017e by zat\u011b\u017eovala kan\u00e1ly. \u017d\u00e1dn\u00fd open source monitoring syst\u00e9m sou\u010dasn\u011b nem\u016f\u017ee \u0161et\u0159it provoz a poskytovat retrospektivn\u00ed metriky.<\/p>\n

                4. Bezpe\u010dnost<\/b>
                \nS\u00ed\u0165 mus\u00ed b\u00fdt maxim\u00e1ln\u011b chr\u00e1n\u011bna p\u0159ed zlovoln\u00fdm \u00fatokem z jedn\u00e9 strany a mus\u00ed b\u00fdt pln\u011b kontrolov\u00e1na z\u00e1kazn\u00edkem z druh\u00e9 strany. <\/p>\n

                5. Podpora od v\u00fdrobce v re\u017eimu 24\/7<\/b>
                \nJe velmi obt\u00ed\u017en\u00e9 komunikovat s v\u00fdrobcem, pokud se nach\u00e1z\u00ed v jin\u00e9m \u010dasov\u00e9m p\u00e1smu a hovo\u0159\u00ed jin\u00fdm jazykem, nebo se prost\u011b pova\u017euje za kr\u00e1le. Je velmi d\u016fle\u017eit\u00e9, aby reakce v\u00fdrobce na probl\u00e9m z\u00e1kazn\u00edka byla co nejmen\u0161\u00ed a \u0159e\u0161en\u00ed skute\u010dn\u011b \u0159e\u0161ilo probl\u00e9m.<\/p>\n

                Co vybrat<\/h3>\n

                \n1. Pokud vyhovuje provoz jak\u00e9hokoli jednoho kan\u00e1lu a jednodu\u0161e se chcete pojistit \u2014 zvolte vyrovn\u00e1va\u010d z\u00e1t\u011b\u017ee. Je to jednoduch\u00e9, levn\u00e9 a efektivn\u00ed. Bude v\u00fdhodou, pokud v\u00fdrobce zahrnul n\u00e1sleduj\u00edc\u00ed re\u017eimy:
                \n- Pojem hlavn\u00ed a z\u00e1lo\u017en\u00ed kan\u00e1l. Kdy\u017e se z\u00e1lo\u017en\u00ed kan\u00e1l zap\u00edn\u00e1 pouze p\u0159i nedostupnosti hlavn\u00edho. Hlavn\u00ed kan\u00e1l se zap\u00edn\u00e1, jakmile je k dispozici.
                \n- Mechanismus kontroly kvality kan\u00e1lu bez generov\u00e1n\u00ed servisn\u00edho provozu.
                \n- Velk\u00fdm plusem bude zv\u00fd\u0161en\u00ed celkov\u00e9 rychlosti p\u0159i rozd\u011blen\u00ed provozu mezi dostupn\u00e9 kan\u00e1ly. To p\u0159inese v\u00fdrazn\u00e9 celkov\u00e9 zv\u00fd\u0161en\u00ed rychlosti, ale nezv\u00fd\u0161\u00ed rychlost v r\u00e1mci jedn\u00e9 relace.
                \nTyto mechanismy efektivn\u011b funguj\u00ed pouze spole\u010dn\u011b. <\/p>\n

                2. Pokud v\u00e1m chyb\u00ed rychlost jak\u00e9hokoli jednoho kan\u00e1lu nebo pot\u0159ebujete maxim\u00e1ln\u00ed rychlost \u2014 zvolte sum\u00e1tory. Agreg\u00e1tory maj\u00ed stejnou cenu, ale um\u00ed m\u00e9n\u011b.
                \n
                Zdroj:                 habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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