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

Um dos principais objetivos para as empresas \u00e9 o crescimento e desenvolvimento. Nas condi\u00e7\u00f5es atuais, o aumento do n\u00famero de instala\u00e7\u00f5es e a entrada de novos colaboradores e parceiros implica um crescimento constante da carga na infraestrutura de TI da empresa. \u00c9 por isso que, ao implementar qualquer solu\u00e7\u00e3o, o gerente de TI da empresa deve considerar uma caracter\u00edstica essencial: a escalabilidade. A capacidade de suportar uma carga de trabalho maior ao adicionar cargas computacionais significativas \u00e9 especialmente cr\u00edtica para ISPs. Vamos ver que oportunidades de escalabilidade a Zimbra Collaboration Suite oferece, como um produto utilizado por v\u00e1rios provedores de SaaS em todo o mundo.<\/p>\n

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

A escalabilidade pode ser de dois tipos: vertical e horizontal. No primeiro caso, o aumento do desempenho da solu\u00e7\u00e3o \u00e9 alcan\u00e7ado atrav\u00e9s da adi\u00e7\u00e3o de capacidades computacionais e outras aos n\u00f3s existentes da infraestrutura de TI, enquanto no segundo, o aumento do desempenho \u00e9 conseguido pela adi\u00e7\u00e3o de novos n\u00f3s computacionais, que assumem parte da carga. A Zimbra Collaboration Suite suporta tanto a escalabilidade horizontal quanto a vertical.<\/p>\n

A escalabilidade vertical, caso voc\u00ea decida adicionar capacidades computacionais ao seu servidor, ser\u00e1 pouco diferente de migrar para um novo servidor mais potente com a Zimbra. No entanto, se voc\u00ea decidir adicionar um armazenamento secund\u00e1rio para e-mails ao servidor, certamente encontrar\u00e1 uma limita\u00e7\u00e3o prevista na Zimbra Open-Source Edition. A quest\u00e3o \u00e9 que na vers\u00e3o gratuita da Zimbra n\u00e3o \u00e9 poss\u00edvel conectar volumes secund\u00e1rios para armazenamento de e-mails. Para resolver essa quest\u00e3o para os usu\u00e1rios da edi\u00e7\u00e3o gratuita da Zimbra, existe a extens\u00e3o Zextras PowerStore, que permite conectar ao servidor tanto armazenamentos secund\u00e1rios f\u00edsicos quanto em nuvem S3. Al\u00e9m disso, o PowerStore inclui na Zimbra algoritmos de compress\u00e3o e deduplica\u00e7\u00e3o, que podem aumentar a efici\u00eancia do armazenamento de dados nos meios existentes. <\/p>\n

A cria\u00e7\u00e3o de volumes secund\u00e1rios \u00e9 especialmente procurada entre os ISPs, que utilizam SSDs r\u00e1pidos, mas caros, como armazenamento prim\u00e1rio, enquanto os secund\u00e1rios s\u00e3o alocados em HDDs mais lentos, por\u00e9m mais baratos. Ao utilizar links transparentes armazenados em SSDs, o sistema continua a funcionar de forma bastante \u00e1gil, e com a compress\u00e3o e deduplica\u00e7\u00e3o, cada servidor pode armazenar muito mais e-mails. Como resultado, a efici\u00eancia econ\u00f4mica servidores<\/a> com armazenamentos secund\u00e1rios e Zextras PowerStore \u00e9 significativamente maior do que quando se utiliza a funcionalidade padr\u00e3o do Zimbra OSE.<\/p>\n

\"Escalonamento
\n
\nA escalabilidade horizontal, por defini\u00e7\u00e3o, pode ser utilizada apenas em uma infraestrutura multi-servidor. Como na instala\u00e7\u00e3o multi-servidor todos os m\u00f3dulos do Zimbra est\u00e3o distribu\u00eddos em diferentes m\u00e1quinas, o administrador pode, praticamente de forma infinita, adicionar cada vez mais r\u00e9plicas LDAP, servidores MTA e Proxy, assim como reposit\u00f3rios de e-mail. <\/p>\n

O processo de adi\u00e7\u00e3o de novos n\u00f3s repete o processo descrito em um de nossos artigos anteriores<\/a><\/noindex> sobre a instala\u00e7\u00e3o multi-servidor do Zimbra. Basta instalar os m\u00f3dulos Zimbra necess\u00e1rios no servidor e indicar o endere\u00e7o do Master LDAP, al\u00e9m de inserir os dados de autentica\u00e7\u00e3o. Ap\u00f3s isso, os novos n\u00f3s se tornaram parte da infraestrutura Zimbra, e o Zimbra Proxy garantir\u00e1 a distribui\u00e7\u00e3o da carga entre os servidores. Assim, todas as caixas de correio criadas anteriormente e seu conte\u00fado permanecem nos reposit\u00f3rios onde estavam antes. <\/p>\n

Normalmente, na infraestrutura Zimbra, novos reposit\u00f3rios de e-mail s\u00e3o adicionados com a propor\u00e7\u00e3o de um servidor para 2500 usu\u00e1rios ativos do web client do Zimbra e at\u00e9 5-6 mil usu\u00e1rios dos clientes de e-mail desktop e m\u00f3vel. Esse n\u00famero de usu\u00e1rios permite atingir um funcionamento m\u00e1ximo responsivo do servidor e evitar problemas de disponibilidade e longos tempos de carregamento.<\/p>\n

Al\u00e9m disso, os administradores de infraestrutura multi-servidor tamb\u00e9m t\u00eam acesso \u00e0 conex\u00e3o de armazenamento secund\u00e1rio, bem como \u00e0 compress\u00e3o e deduplica\u00e7\u00e3o em cada armazenamento de e-mail usando o Zextras PowerStore. O uso deste zimlet permite economizar at\u00e9 50% do espa\u00e7o em disco, al\u00e9m de melhorar a efici\u00eancia econ\u00f4mica de toda a infraestrutura. No caso de grandes ISPs, o impacto econ\u00f4mico dessa otimiza\u00e7\u00e3o de infraestrutura pode atingir valores realmente significativos.
\n
Fonte: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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