{"id":38421,"date":"2019-10-31T22:23:38","date_gmt":"2019-10-31T19:23:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/rezervnoe-kopirovanie-chast-po-prosbam-chitatelej-obzor-urbackup-backuppc-amanda\/"},"modified":"2019-10-31T22:23:38","modified_gmt":"2019-10-31T19:23:38","slug":"rezervnoe-kopirovanie-chast-po-prosbam-chitatelej-obzor-urbackup-backuppc-amanda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/administrirovanie\/rezervnoe-kopirovanie-chast-po-prosbam-chitatelej-obzor-urbackup-backuppc-amanda","title":{"rendered":"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/c92caf0f951230470e6992d08d3e1f03.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Esta nota de revis\u00e3o continua <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/449282\/\">o ciclo de backup<\/a><\/noindex>, escrita a pedido dos leitores, abordar\u00e1 UrBackup, BackupPC e AMANDA.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2 id=\"obzor-urbackup\">Revis\u00e3o do UrBackup.<\/h2>\n<p><\/p>\n<p>A pedido do participante <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/users\/vgusev2007\/\" class=\"user_link\">VGusev2007<\/a><\/noindex> , adiciono a revis\u00e3o do UrBackup, um sistema cliente-servidor de backup. Ele permite criar backups completos e incrementais, pode trabalhar com instant\u00e2neos de dispositivos (apenas Win?), e tamb\u00e9m pode criar backups de arquivos. O cliente pode estar na mesma rede que o servidor ou se conectar pela Internet. Foi declarado que h\u00e1 rastreamento de altera\u00e7\u00f5es, o que permite encontrar rapidamente as diferen\u00e7as entre os backups. Tamb\u00e9m h\u00e1 suporte \u00e0 deduplica\u00e7\u00e3o de armazenamento de dados no lado do servidor, o que economiza espa\u00e7o ocupado. As conex\u00f5es de rede s\u00e3o criptografadas, tamb\u00e9m existe uma interface web para gerenciar o servidor. Vamos ver do que ele \u00e9 capaz:<\/p>\n<p>\n<b class=\"spoiler_title\">No modo de cria\u00e7\u00e3o de backup completo, os resultados foram:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/e39a7ec9c0ccf93c3355368a209cd8c6.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Tempo de execu\u00e7\u00e3o:<\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n8m20s<br \/>\n8m19s<br \/>\n8m24s<\/p>\n<p>Segundo teste<br \/>\n8m30s<br \/>\n8m34s<br \/>\n8m20s<\/p>\n<p>Terceiro teste<br \/>\n8m10s<br \/>\n8m14s<br \/>\n8m12s<\/p>\n<p><\/p>\n<p>No modo de cria\u00e7\u00e3o de backups incrementais:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/8458039f5061145323836bfade72d273.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Tempo de execu\u00e7\u00e3o:<\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n8m10s<br \/>\n8m10s<br \/>\n8m12s<\/p>\n<p>Segundo teste<br \/>\n3m50s<br \/>\n4m12s<br \/>\n3m34s<\/p>\n<p>Terceiro teste<br \/>\n2m50s<br \/>\n2m35s<br \/>\n2m38s<\/p>\n<p><\/p>\n<p>O tamanho do reposit\u00f3rio em ambos os casos foi de aproximadamente 14 GB, o que indica que a deduplica\u00e7\u00e3o est\u00e1 funcionando no lado do servidor. Tamb\u00e9m deve-se notar a discrep\u00e2ncia no tempo de cria\u00e7\u00e3o do backup entre o servidor e o cliente, o que \u00e9 vis\u00edvel nos gr\u00e1ficos e \u00e9 um b\u00f4nus bastante agrad\u00e1vel, uma vez que a interface web mostra o tempo de opera\u00e7\u00e3o do processo de backup no lado do servidor sem considerar<br \/>\no estado do cliente. No geral, os gr\u00e1ficos para o backup completo e o incremental s\u00e3o indistingu\u00edveis. Provavelmente, a diferen\u00e7a est\u00e1 apenas na forma como isso \u00e9 processado no lado do servidor. Tamb\u00e9m fiquei satisfeito com a baixa carga da CPU no sistema que est\u00e1 sendo reservado.<\/p>\n<p><\/p>\n<h2 id=\"obzor-backuppc\">Revis\u00e3o do BackupPC<\/h2>\n<p><\/p>\n<p>A pedido do participante <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/users\/vanzhiganov\/\" class=\"user_link\">vanzhiganov<\/a><\/noindex> Adiciono a an\u00e1lise do BackupPC. Este software \u00e9 instalado em um servidor de armazenamento de backups, escrito em Perl, e funciona sobre v\u00e1rias ferramentas de backup \u2014 principalmente rsync e tar. Utiliza SSH e SMB como transporte, e tamb\u00e9m possui uma interface web baseada em CGI (implantada sobre Apache). Na interface web, h\u00e1 uma lista abrangente de configura\u00e7\u00f5es. Entre as caracter\u00edsticas, destaca-se a possibilidade de definir um intervalo m\u00ednimo entre os backups, bem como um per\u00edodo durante o qual os backups n\u00e3o ser\u00e3o realizados. Ao escolher o sistema de arquivos para o servidor de backup, \u00e9 importante observar o suporte a links duros. Assim, o sistema de arquivos para o armazenamento n\u00e3o pode ser dividido em pontos de montagem. No geral, \u00e9 uma impress\u00e3o bastante positiva. Vamos ver do que este software \u00e9 capaz:<\/p>\n<p>\n<b class=\"spoiler_title\">No modo de cria\u00e7\u00e3o de backups completos com rsync, os resultados foram os seguintes:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/95b0b338962a2c379c83f3a9b7ee3531.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n12m25s<br \/>\n12m14s<br \/>\n12m27s<\/p>\n<p>Segundo teste<br \/>\n7m41s<br \/>\n7m44s<br \/>\n7m35s<\/p>\n<p>Terceiro teste<br \/>\n10m11s<br \/>\n10m0s<br \/>\n9m54s<\/p>\n<p><\/p>\n<p>Se utilizarmos backups completos e tar:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/f82dc313f45878b723bc4f50a8f2eb2d.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n12m41s<br \/>\n12m25s<br \/>\n12m45s<\/p>\n<p>Segundo teste<br \/>\n12m35s<br \/>\n12m45s<br \/>\n12m14s<\/p>\n<p>Terceiro teste<br \/>\n12m43s<br \/>\n12m25s<br \/>\n12m5s<\/p>\n<p><\/p>\n<p>No modo de cria\u00e7\u00e3o de backups incrementais, foi preciso desistir do tar, pois com essas configura\u00e7\u00f5es os backups n\u00e3o eram criados.<\/p>\n<p><\/p>\n<p>Os resultados da cria\u00e7\u00e3o de backups incrementais utilizando rsync s\u00e3o os seguintes:<\/p>\n<p><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/032f5a4fd26544c411a2176dd6d9f8f6.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n11m55s<br \/>\n11m50s<br \/>\n12m25s<\/p>\n<p>Segundo teste<br \/>\n2m42s<br \/>\n2m50s<br \/>\n2m30s<\/p>\n<p>Terceiro teste<br \/>\n6m00s<br \/>\n3m33s<br \/>\n5m30s<\/p>\n<p><\/p>\n<p>De modo geral, \u00e9 poss\u00edvel ver uma leve vantagem em velocidade do rsync, que tamb\u00e9m utiliza a rede de forma mais eficiente. Parte disso pode ser compensado pelo menor uso da CPU com o tar como programa para cria\u00e7\u00e3o de backups. Outra vantagem do rsync \u00e9 o uso com c\u00f3pias incrementais. O tamanho do reposit\u00f3rio ao criar backups completos \u00e9 igual, totalizando 16 GB, enquanto no caso de c\u00f3pias incrementais \u2014 14 GB por execu\u00e7\u00e3o, o que indica a deduplica\u00e7\u00e3o em funcionamento.<\/p>\n<p><\/p>\n<h2 id=\"obzor-amanda\">An\u00e1lise da AMANDA<\/h2>\n<p><\/p>\n<p>A pedido do participante <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/users\/oller\/\" class=\"user_link\">oller<\/a><\/noindex> Adiciono os testes da AMANDA,<\/p>\n<p>\n<b class=\"spoiler_title\">Os resultados do teste com tar como compactador e ativa\u00e7\u00e3o da compress\u00e3o s\u00e3o os seguintes:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Backup, parte a pedido dos leitores: An\u00e1lise do UrBackup, BackupPC, AMANDA\" src=\"\/wp-content\/uploads\/2019\/09\/259820d08b21444dd61b30cb3bdeb38f.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><\/p>\n<p>Primeira execu\u00e7\u00e3o<br \/>\nSegunda execu\u00e7\u00e3o<br \/>\nTerceira execu\u00e7\u00e3o<\/p>\n<p>Primeiro teste<br \/>\n9m5s<br \/>\n8m59s<br \/>\n9m6s<\/p>\n<p>Segundo teste<br \/>\n0m5s<br \/>\n0m5s<br \/>\n0m5s<\/p>\n<p>Terceiro teste<br \/>\n2m40s<br \/>\n2m47s<br \/>\n2m45s<\/p>\n<p><\/p>\n<p>O programa carrega completamente um n\u00facleo de CPU, mas devido ao disco com IOPS limitado no lado do servidor de armazenamento de backups, n\u00e3o consegue alcan\u00e7ar uma velocidade de transfer\u00eancia de dados maior. No geral, a configura\u00e7\u00e3o trouxe um pouco mais de problemas do que os outros participantes, j\u00e1 que o autor do programa n\u00e3o utiliza SSH como transporte, mas implementa um esquema semelhante com chaves, criando e mantendo uma CA completa. H\u00e1 a possibilidade de restringir amplamente o cliente e o servidor de backup: por exemplo, se eles n\u00e3o puderem confiar totalmente um no outro, pode-se proibir, como alternativa, a inicia\u00e7\u00e3o de recupera\u00e7\u00e3o de backup pelo servidor, definindo o valor da vari\u00e1vel correspondente como zero no arquivo de configura\u00e7\u00e3o. \u00c9 poss\u00edvel conectar uma interface web para gerenciamento, mas, no geral, o sistema configurado pode ser totalmente automatizado com pequenos scripts em bash (ou SCM, como ansible, por exemplo). Existe um sistema de configura\u00e7\u00e3o de armazenamento n\u00e3o trivial, que, aparentemente, est\u00e1 relacionado ao suporte a uma ampla lista de diferentes dispositivos de armazenamento (fitas LTO, discos r\u00edgidos, etc.). Tamb\u00e9m vale mencionar que, dentre todos os programas analisados neste artigo, a AMANDA \u00e9 a \u00fanica que conseguiu detectar a renomea\u00e7\u00e3o do diret\u00f3rio. O tamanho do reposit\u00f3rio em uma \u00fanica execu\u00e7\u00e3o foi de 13 GB.<\/p>\n<p><\/p>\n<p>An\u00fancio<\/p>\n<p><\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/449282\/\">Backup, parte 1: Por que o backup \u00e9 necess\u00e1rio, vis\u00e3o geral dos m\u00e9todos e tecnologias,<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/452630\/\">Backup, parte 2: Vis\u00e3o geral e teste de ferramentas de backup baseadas em rsync<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/454420\/\">Backup, parte 3: Vis\u00e3o geral e teste do duplicity, duplicati,<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/454734\/\">Backup, parte 4: Vis\u00e3o geral e teste do zbackup, restic, borgbackup,<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/459550\/\">Backup, parte 5: Teste do bacula e veeam backup for linux<\/a><\/noindex><br \/>\nBackup, Parte 6: Compara\u00e7\u00e3o de ferramentas de backup<br \/>\nBackup, parte 7: Conclus\u00f5es<\/p>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/southbridge\/blog\/468963\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u0430\u043d\u043d\u0430\u044f \u043e\u0431\u0437\u043e\u0440\u043d\u0430\u044f \u0437\u0430\u043c\u0435\u0442\u043a\u0430 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0446\u0438\u043a\u043b \u043f\u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u043c\u0443 \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0430 \u043f\u043e \u043f\u0440\u043e\u0441\u044c\u0431\u0435 \u0447\u0438\u0442\u0430\u0442\u0435\u043b\u0435\u0439, \u0432 \u043d\u0435\u0439 \u0440\u0435\u0447\u044c \u043f\u043e\u0439\u0434\u0435\u0442 \u043e UrBackup, BackupPC, \u0430 \u0442\u0430\u043a\u0436\u0435 AMANDA. \u041e\u0431\u0437\u043e\u0440 UrBackup. \u041f\u043e \u043f\u0440\u043e\u0441\u044c\u0431\u0435 \u0443\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u0430 VGusev2007 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044e \u043e\u0431\u0437\u043e\u0440 UrBackup, \u043a\u043b\u0438\u0435\u043d\u0442-\u0441\u0435\u0440\u0432\u0435\u0440\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0434\u043b\u044f \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u041e\u043d\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043f\u043e\u043b\u043d\u044b\u0435 \u0438 \u0438\u043d\u043a\u0440\u0435\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0435 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u044b\u0435 \u043a\u043e\u043f\u0438\u0438, \u0443\u043c\u0435\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0441\u043e \u0441\u043d\u0438\u043c\u043a\u0430\u043c\u0438 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 (Win only?), \u0430 \u0442\u0430\u043a\u0436\u0435 \u0443\u043c\u0435\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":28840,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-38421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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