{"id":30786,"date":"2019-10-31T21:37:26","date_gmt":"2019-10-31T18:37:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/masshtabirovanie-zimbra-collaboration-suite\/"},"modified":"2019-10-31T21:37:26","modified_gmt":"2019-10-31T18:37:26","slug":"masshtabirovanie-zimbra-collaboration-suite","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/masshtabirovanie-zimbra-collaboration-suite","title":{"rendered":"Skaliranje Zimbra Collaboration Suite","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jedan od glavnih ciljeva za poslovanje je rast i razvoj. U dana\u0161njim okolnostima, pove\u0107anje broja proizvodnih prostora, kao i dolazak novih zaposlenika i poslovnih partnera, podrazumijeva stalni rast optere\u0107enja na IT infrastrukturu poduze\u0107a. Upravo zbog toga prilikom implementacije bilo kojeg rje\u0161enja, IT menad\u017eer poduze\u0107a mora uzeti u obzir tu karakteristiku, kao \u0161to je skalabilnost. Mogu\u0107nost podno\u0161enja velikih radnih optere\u0107enja prilikom dodavanja novih ra\u010dunalnih resursa osobito je kriti\u010dna za ISP-ove. Pogledajmo koje mogu\u0107nosti za skaliranje nudi Zimbra Collaboration Suite, kao proizvod koji koriste razli\u010diti SaaS provajderi \u0161irom svijeta.<\/p>\n

\"Skaliranje<\/a><\/noindex><\/p>\n

Skalabilnost dolazi u dva oblika: vertikalna i horizontalna. U prvom slu\u010daju, porast performansi rje\u0161enja posti\u017ee se dodavanjem ra\u010dunalnih i drugih resursa postoje\u0107im \u010dvorovima IT infrastrukture, dok se u drugom slu\u010daju porast performansi posti\u017ee dodavanjem novih ra\u010dunalnih \u010dvorova koji preuzimaju dio optere\u0107enja. U Zimbra Collaboration Suite podr\u017eano je kako horizontalno, tako i vertikalno skaliranje.<\/p>\n

Vertikalno skaliranje, u slu\u010daju da odlu\u010dite dodati ra\u010dunalne resurse va\u0161em serveru, malo \u0107e se razlikovati od migracije na novi, ja\u010di server s Zimbrom. Me\u0111utim, ako odlu\u010dite dodati sekundarno spremi\u0161te za e-po\u0161tu na server, obavezno \u0107ete se suo\u010diti s ograni\u010denjem koje je postavljeno u Zimbra Open-Source Edition. Naime, u besplatnoj verziji Zimbre nije mogu\u0107e priklju\u010diti sekundarne volume za pohranu e-po\u0161te. Ovaj problem za korisnike besplatne verzije Zimbre treba rije\u0161iti pro\u0161irenje Zextras PowerStore, koje omogu\u0107ava povezivanje s serverom kako fizi\u010dkih, tako i cloud S3 sekundarnih spremi\u0161ta. Osim toga, PowerStore uklju\u010duje algoritme za kompresiju i deduplicaciju u Zimbri koji mogu pobolj\u0161ati u\u010dinkovitost pohrane podataka na postoje\u0107im ure\u0111ajima. <\/p>\n

Posebno je tra\u017eena izrada sekundarnih volumena me\u0111u ISP-ovima koji primarno koriste brze, ali skupe SSD-ove, dok sekundarne postavljaju na spore, ali jeftinije HDD-ove. Kori\u0161tenjem transparentnih veza, koje se oplo\u017euju na SSD-ima, sustav i dalje prili\u010dno brzo radi, a zahvaljuju\u0107i kompresiji i deduplikaciji svaki poslu\u017eitelj mo\u017ee pohraniti mnogo vi\u0161e e-po\u0161te. Kao rezultat toga, ekonomska isplativost poslu\u017eitelja<\/a> se sekundarnim pohranama i Zextras PowerStore zna\u010dajno je ve\u0107a nego kod kori\u0161tenja standardne funkcionalnosti Zimbra OSE.<\/p>\n

\"Skaliranje
\n
\nHorizontalno skaliranje mo\u017ee se koristiti isklju\u010divo u vi\u0161eservernoj infrastrukturi. Budu\u0107i da su s vi\u0161eservernom instalacijom svi Zimbra moduli raspore\u0111eni na razli\u010ditim strojevima, administrator dobiva mogu\u0107nost gotovo beskona\u010dno dodavati nove LDAP replike, MTA- i Proxy poslu\u017eitelje, kao i pohrane e-po\u0161te. <\/p>\n

Proces dodavanja novih \u010dvorova ponavlja opisani proces u jednom od na\u0161ih prethodnih \u010dlanaka<\/a><\/noindex> za vi\u0161eservernu instalaciju Zimbra. Dovoljno je jednostavno instalirati potrebne Zimbra module na poslu\u017eitelj i unijeti adresu Master LDAP, kao i podatke za autentifikaciju. Nakon toga, novi \u010dvorovi postaju dio Zimbra infrastrukture, a Zimbra Proxy osigurava raspodjelu optere\u0107enja izme\u0111u poslu\u017eitelja. Pri tome svi ranije stvoreni e-mail nalozi i njihovi sadr\u017eaji ostaju na onim pohranama gdje su se prije nalazili. <\/p>\n

Obi\u010dno se u Zimbra infrastrukturu dodaju nove pohrane e-po\u0161te, ra\u010dunaju\u0107i jedan poslu\u017eitelj na 2500 aktivnih korisnika web klijenta Zimbra i do 5-6 tisu\u0107a korisnika desktop i mobilnih klijenata e-po\u0161te. Ovaj broj korisnika omogu\u0107ava postizanje maksimalno responzivne rada poslu\u017eitelja i izbjegavanje problema s dostupno\u0161\u0107u i dugim vremenom u\u010ditavanja.<\/p>\n

Osim toga, administratorima vi\u0161eserverne infrastrukture tako\u0111er je dostupno povezivanje sekundarnih pohrana, kao i kompresija i deduplikacija na svakoj pohrani e-po\u0161te uz pomo\u0107 Zextras PowerStore. Kori\u0161tenje ovog zimleta omogu\u0107ava u\u0161tedu do 50% prostora na disku, dok se istovremeno pove\u0107ava ekonomska isplativost cijele infrastrukture. U slu\u010daju velikih ISP-ova, ekonomski u\u010dinak takve optimizacije infrastrukture mo\u017ee dosti\u0107i zaista velike vrijednosti.
\n
Izvor: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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