{"id":31642,"date":"2019-10-31T21:42:19","date_gmt":"2019-10-31T18:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/planirovanie-infrastruktury-dlya-ustanovki-zimbra-collaboration-suite\/"},"modified":"2019-10-31T21:42:19","modified_gmt":"2019-10-31T18:42:19","slug":"planirovanie-infrastruktury-dlya-ustanovki-zimbra-collaboration-suite","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/planirovanie-infrastruktury-dlya-ustanovki-zimbra-collaboration-suite","title":{"rendered":"Pl\u00e1novanie infra\u0161trukt\u00fary pre in\u0161tal\u00e1ciu Zimbra Collaboration Suite","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Implement\u00e1cia ak\u00e9hoko\u013evek IT rie\u0161enia vo firme za\u010d\u00edna projektovan\u00edm. V tejto f\u00e1ze mus\u00ed IT mana\u017e\u00e9r vypo\u010d\u00edta\u0165 po\u010det serverov a ich charakteristiky tak, aby na jednej strane dostato\u010dne pokr\u00fdvali v\u0161etk\u00fdch pou\u017e\u00edvate\u013eov, a na druhej strane, aby pomer ceny a kvality t\u00fdchto serverov bol optim\u00e1lny a n\u00e1klady na vytvorenie v\u00fdpo\u010dtovej infra\u0161trukt\u00fary pre nov\u00fd informa\u010dn\u00fd syst\u00e9m nezapricinili v\u00e1\u017eny z\u00e1sah do IT rozpo\u010dtu podniku. Pozrime sa, ako spr\u00e1vne projektova\u0165 infra\u0161trukt\u00faru pre implement\u00e1ciu Zimbra Collaboration Suite vo firme.<\/p>\n

\"Pl\u00e1novanie<\/a><\/noindex><\/p>\n

Hlavnou \u010drtou Zimbry v porovnan\u00ed s in\u00fdmi rie\u0161eniami je, \u017ee v pr\u00edpade ZCS sa \"\u00fazky hrdlo\" zriedka st\u00e1va procesorov\u00fd v\u00fdkon alebo opera\u010dn\u00e1 pam\u00e4\u0165. Hlavn\u00fdm obmedzen\u00edm b\u00fdva zvy\u010dajne r\u00fdchlos\u0165 vstupu a v\u00fdstupu pevn\u00fdch diskov, a preto by sa mala pozornos\u0165 s\u00fastredi\u0165 hlavne na \u00falo\u017eisk\u00e1 d\u00e1t. Ofici\u00e1lne vyhl\u00e1sen\u00e9 minim\u00e1lne po\u017eiadavky pre Zimbu v produk\u010dnom prostred\u00ed s\u00fa \u0161tvordIMenzion\u00e1lny 64-bitov\u00fd procesor s 2 gigahertzami frekvencie, 10 gigabajtov pre syst\u00e9mov\u00e9 s\u00fabory a logy, ako aj minim\u00e1lne 8 gigabajtov RAM. Tieto charakteristiky zvy\u010dajne sta\u010dia na plynul\u00fa pr\u00e1cu servera. Ale \u010do robi\u0165, ak m\u00e1te za \u00falohu implementova\u0165 Zimbu pre 10 tis\u00edc pou\u017e\u00edvate\u013eov? Ak\u00e9 servery a ako by sa mali v takom pr\u00edpade implementova\u0165?<\/p>\n

Za\u010dneme t\u00fdm, \u017ee infra\u0161trukt\u00fara pre 10 tis\u00edc pou\u017e\u00edvate\u013eov by mala by\u0165 multi-serverov\u00e1. Multi-serverov\u00e1 infra\u0161trukt\u00fara umo\u017e\u0148uje Zimbre by\u0165 \u0161k\u00e1lovate\u013enou a na druhej strane dosahova\u0165 plynul\u00fa pr\u00e1cu informa\u010dn\u00e9ho syst\u00e9mu aj pri vysokom po\u010dte pou\u017e\u00edvate\u013eov. Obvykle b\u00fdva dos\u0165 \u0165a\u017ek\u00e9 predpoveda\u0165, ko\u013eko pou\u017e\u00edvate\u013eov m\u00f4\u017ee server Zimbra kvalitne obsl\u00fa\u017ei\u0165, preto\u017ee ve\u013emi ve\u013ea z\u00e1vis\u00ed od intenzity ich pr\u00e1ce s kalend\u00e1rmi a elektronickou po\u0161tou, ako aj od pou\u017e\u00edvan\u00e9ho protokolu. Preto na pr\u00edklade implementujeme 4 mailov\u00e9 \u00falo\u017eisk\u00e1. V pr\u00edpade nedostatku alebo v\u00e1\u017eneho prebytku v\u00fdkonu sa bude mo\u017en\u00e9 bu\u010f odpoji\u0165, alebo prida\u0165 \u010fal\u0161\u00ed.<\/p>\n

Pri n\u00e1vrhu infra\u0161trukt\u00fary pre 10 000 \u013eud\u00ed bude potrebn\u00e9 vytvori\u0165 servery LDAP, MTA a Proxy a 4 po\u0161tov\u00e9 \u00falo\u017eisk\u00e1. Je d\u00f4le\u017eit\u00e9 poznamena\u0165, \u017ee servery LDAP, MTA a Proxy m\u00f4\u017eu by\u0165 virtu\u00e1lne. To zn\u00ed\u017ei n\u00e1klady na serverov\u00fd hardv\u00e9r a u\u013eah\u010d\u00ed z\u00e1lohovanie a obnovu d\u00e1t, ale na druhej strane, v pr\u00edpade poruchy fyzick\u00e9ho servera riskujete, \u017ee zostanete bez MTA, LDAP a Proxy. Preto by ste sa mali rozhodn\u00fa\u0165 medzi fyzick\u00fdmi alebo virtu\u00e1lnymi servermi na z\u00e1klade toho, ak\u00fa dobu v\u00fdpadku si m\u00f4\u017eete dovoli\u0165 v pr\u00edpade n\u00fadze. Po\u0161tov\u00e9 \u00falo\u017eisk\u00e1 by sa mali nach\u00e1dza\u0165 na fyzick\u00fdch serveroch, preto\u017ee na nich prebieha najv\u00e4\u010d\u0161\u00ed po\u010det zapisovac\u00edch cyklov, ktor\u00e9 obmedzuj\u00fa v\u00fdkonnos\u0165 Zimbry, a preto v\u00e4\u010d\u0161\u00ed po\u010det kan\u00e1lov na prenos d\u00e1t m\u00f4\u017ee v\u00fdrazne zv\u00fd\u0161i\u0165 v\u00fdkonnos\u0165 Zimbry. <\/p>\n

V podstate, po vytvoren\u00ed serverov<\/a> LDAP, MTA, Proxy, sie\u0165ov\u00fdch \u00falo\u017e\u00edsk a ich spojen\u00ed do jednej infra\u0161trukt\u00fary, je Zimbra Collaboration Suite pre 10 000 pou\u017e\u00edvate\u013eov pripraven\u00e1 na spustenie. Sch\u00e9ma fungovania tejto konfigur\u00e1cie bude dos\u0165 jednoduch\u00e1: <\/p>\n

\"Pl\u00e1novanie
\n
\nNa sch\u00e9me s\u00fa zobrazen\u00e9 hlavn\u00e9 uzly syst\u00e9mu a toky d\u00e1t, ktor\u00e9 medzi nimi bud\u00fa cirkulova\u0165. Pri tejto konfigur\u00e1cii infra\u0161trukt\u00fara nebude v\u00f4bec chr\u00e1nen\u00e1 pred stratou d\u00e1t, v\u00fdpadkom sp\u00f4soben\u00fdm zlyhan\u00edm niektor\u00e9ho z serverov at\u010f. Pozrime sa, ako je mo\u017en\u00e9 chr\u00e1ni\u0165 svoju infra\u0161trukt\u00faru pred t\u00fdmito probl\u00e9mami.<\/p>\n

Hlavnou met\u00f3dou je hardv\u00e9rov\u00e1 redundancia. Dodato\u010dn\u00e9 uzly MTA a Proxy m\u00f4\u017eu v pr\u00edpade zlyhania hlavn\u00fdch serverov do\u010dasne prebra\u0165 \u00falohu hlavn\u00fdch. Duplicitn\u00e9 uzly kriticky d\u00f4le\u017eitej infra\u0161trukt\u00fary s\u00fa prakticky v\u017edy skvel\u00fdm n\u00e1padom, ale nie v\u017edy je realizovate\u013en\u00e9 v po\u017eadovanom rozsahu. V\u00fdrazn\u00fd pr\u00edklad je z\u00e1lohovanie serverov, na ktor\u00fdch je ulo\u017een\u00e1 po\u0161ta. V s\u00fa\u010dasnosti Zimbra Collaboration Suite Open-Source Edition nepodporuje vytv\u00e1ranie duplicitn\u00fdch \u00falo\u017e\u00edsk, tak\u017ee v pr\u00edpade zlyhania jedn\u00e9ho z tak\u00fdchto serverov sa ned\u00e1 vyhn\u00fa\u0165 v\u00fdpadku, a na zn\u00ed\u017eenie doby v\u00fdpadku sp\u00f4soben\u00e9ho zlyhan\u00edm po\u0161tov\u00e9ho \u00falo\u017eiska m\u00f4\u017ee IT mana\u017e\u00e9r nasadi\u0165 jeho z\u00e1lohu na inom. serveri<\/a>. <\/p>\n

Ke\u010f\u017ee Zimbra OSE nem\u00e1 zabudovan\u00fd z\u00e1lohovac\u00ed syst\u00e9m, budeme potrebova\u0165 Zextras Backup, ktor\u00fd podporuje z\u00e1lohovanie v re\u00e1lnom \u010dase a extern\u00e9 \u00falo\u017eisko. Ke\u010f\u017ee Zextras Backup, ke\u010f rob\u00ed pln\u00e9 a inkrement\u00e1lne z\u00e1lohy, ukladaj\u00fa v\u0161etky d\u00e1ta do prie\u010dinka \/opt\/zimbra\/backup, bolo by rozumn\u00e9 pripoji\u0165 k nemu extern\u00e9, sie\u0165ov\u00e9 alebo dokonca cloudov\u00e9 \u00falo\u017eisko, aby sme mali k dispoz\u00edcii m\u00e9dium s aktu\u00e1lnou z\u00e1lohou v pr\u00edpade p\u00e1du jedn\u00e9ho z serverov. M\u00f4\u017ee sa obnovi\u0165 na rezervnom fyzickom serveri, virtu\u00e1lnom stroji alebo v cloude. Dobrou my\u0161lienkou by tie\u017e bolo nain\u0161talova\u0165 MTA so spamov\u00fdm filtrom pred server s Zimbra Proxy, aby sa zn\u00ed\u017eilo mno\u017estvo nevy\u017eiadanej prev\u00e1dzky prich\u00e1dzaj\u00facej na server.<\/p>\n

Nakoniec bude zabezpe\u010den\u00e1 infra\u0161trukt\u00fara Zimbra vyzera\u0165 pribli\u017ene takto:<\/p>\n

\"Pl\u00e1novanie
\n
\nS touto konfigur\u00e1ciou infra\u0161trukt\u00fara Zimbra nielen\u017ee poskytne kvalitn\u00e9 slu\u017eby pre 10 000 pou\u017e\u00edvate\u013eov, ale aj v pr\u00edpade nepredv\u00eddanej situ\u00e1cie umo\u017en\u00ed \u010do najr\u00fdchlej\u0161ie odstr\u00e1ni\u0165 jej n\u00e1sledky.
\n
Zdroj: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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