{"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\/ro\/blog\/administrirovanie\/masshtabirovanie-zimbra-collaboration-suite","title":{"rendered":"Scalabilitatea Zimbra Collaboration Suite","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Una dintre principalele provoc\u0103ri pentru afaceri este cre\u0219terea \u0219i dezvoltarea. \u00cen realitatea de ast\u0103zi, cre\u0219terea num\u0103rului de spa\u021bii de produc\u021bie, precum \u0219i apari\u021bia de noi angaja\u021bi \u0219i colaboratori implic\u0103 o sarcin\u0103 tot mai mare pentru infrastructura IT a companiei. Din acest motiv, atunci c\u00e2nd se implementeaz\u0103 orice solu\u021bie, managerul IT al companiei trebuie s\u0103 ia \u00een considerare o caracteristic\u0103 important\u0103: scalabilitatea. Capacitatea de a face fa\u021b\u0103 unor sarcini de lucru mai mari, atunci c\u00e2nd se adaug\u0103 sarcini de calcul suplimentare, este deosebit de critic\u0103 pentru ISP-uri. Haide\u021bi s\u0103 vedem ce oportunit\u0103\u021bi de scalabilitate ofer\u0103 Zimbra Collaboration Suite, un produs utilizat de diversi furnizori SaaS din \u00eentreaga lume.<\/p>\n

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

Scalabilitatea poate fi de dou\u0103 tipuri: vertical\u0103 \u0219i orizontal\u0103. \u00cen primul caz, cre\u0219terea performan\u021bei solu\u021biei se realizeaz\u0103 prin ad\u0103ugarea de capacit\u0103\u021bi de calcul \u0219i alte resurse la nodurile existente ale infrastructurii IT, iar \u00een al doilea caz, cre\u0219terea performan\u021bei se realizeaz\u0103 prin ad\u0103ugarea de noi noduri de calcul, care preiau o parte din sarcin\u0103. Zimbra Collaboration Suite suport\u0103 at\u00e2t scalabilitatea orizontal\u0103, c\u00e2t \u0219i pe cea vertical\u0103.<\/p>\n

Scalabilitatea vertical\u0103, \u00een cazul \u00een care decide\u021bi s\u0103 ad\u0103uga\u021bi capacit\u0103\u021bi de calcul serverului dvs., nu va fi cu mult diferit\u0103 de migrarea pe un server nou, mai puternic cu Zimbra. Totu\u0219i, dac\u0103 decide\u021bi s\u0103 ad\u0103uga\u021bi un stocaj secundar pentru e-mail pe server, cu siguran\u021b\u0103 ve\u021bi \u00eent\u00e2lni o restric\u021bie impus\u0103 de Zimbra Open-Source Edition. Problema este c\u0103, \u00een versiunea gratuit\u0103 a Zimbra, nu este posibil s\u0103 conecta\u021bi volume secundare pentru stocarea e-mailului. Rezolvarea acestei probleme pentru utilizatorii versiunii gratuite a Zimbra este extinderea Zextras PowerStore, care permite conectarea la server at\u00e2t a stocajelor fizice, c\u00e2t \u0219i a celor cloud S3. \u00cen plus, PowerStore include \u00een Zimbra algoritmi de comprimare \u0219i deduplicare, capabili s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 eficien\u021ba stoc\u0103rii datelor pe suporturile existente. <\/p>\n

\u00cen special, crearea de volume secundare este foarte c\u0103utat\u0103 \u00een r\u00e2ndul ISP-urilor, care folosesc SSD-uri rapide, dar costisitoare ca stocare primar\u0103, \u00een timp ce plaseaz\u0103 stocarea secundar\u0103 pe HDD-uri mai lente, dar mai ieftine. Prin utilizarea linkurilor transparente stocate pe SSD, sistemul continu\u0103 s\u0103 func\u021bioneze destul de rapid, iar prin compresie \u0219i deduplicare, fiecare server poate stoca mult mai multe e-mailuri. Ca urmare, eficien\u021ba economic\u0103 servere<\/a> cu stoc\u0103rile secundare \u0219i Zextras PowerStore este semnificativ mai mare dec\u00e2t utilizarea func\u021bionalit\u0103\u021bii standard Zimbra OSE.<\/p>\n

\"Scalabilitatea
\n
\nScalarea orizontal\u0103 poate fi utilizat\u0103 prin defini\u021bie doar \u00een infrastructuri multi-server. Deoarece \u00een cazul unei instala\u021bii multi-server, toate modulele Zimbra sunt distribuite pe ma\u0219ini diferite, administratorul are posibilitatea de a ad\u0103uga practic nelimitat noi replici LDAP, servere MTA \u0219i Proxy, precum \u0219i stoc\u0103ri de e-mail. <\/p>\n

Procesul de ad\u0103ugare a unor noi noduri reproduce procesul descris \u00een unul din articolele noastre anterioare<\/a><\/noindex> despre instala\u021bia multi-server a Zimbra. Este suficient s\u0103 instala\u021bi modulele necesare Zimbra pe server \u0219i s\u0103 specifica\u021bi adresa Master LDAP, precum \u0219i s\u0103 introduce\u021bi datele de autentificare. Dup\u0103 aceasta, noile noduri devin parte a infrastructurii Zimbra, iar Zimbra Proxy asigur\u0103 distribu\u021bia \u00eenc\u0103rc\u0103turii \u00eentre servere. \u00cen acest fel, toate cutiile po\u0219tale create anterior \u0219i con\u021binutul lor r\u0103m\u00e2n pe stoc\u0103rile pe care se aflau \u00eenainte. <\/p>\n

De obicei, \u00een infrastructura Zimbra se adaug\u0103 noi stoc\u0103ri de e-mail, av\u00e2nd \u00een vedere un server la 2500 de utilizatori activi ai clientului web Zimbra \u0219i p\u00e2n\u0103 la 5-6 mii de utilizatori ai clien\u021bilor desktop \u0219i mobili pentru e-mail. Aceast\u0103 num\u0103r de utilizatori permite atingerea unei func\u021bion\u0103ri maximizate a serverului \u0219i evitarea problemelor de disponibilitate \u0219i a timpului lung de \u00eenc\u0103rcare.<\/p>\n

\u00cen plus, administratorii infrastructurii multi-server au acces la conectarea de stocare secundar\u0103, precum \u0219i la compresie \u0219i deduplicare pentru fiecare stocare de e-mail cu ajutorul Zextras PowerStore. Utilizarea acestui zimlet permite economisirea a p\u00e2n\u0103 la 50% din spa\u021biul de stocare, contribuind la cre\u0219terea eficien\u021bei economice a \u00eentregii infrastructuri. \u00cen cazul ISP-urilor mari, efectul economic al acestei optimiz\u0103ri a infrastructurii poate atinge valori cu adev\u0103rat semnificative.
\n
Sursa: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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