{"id":2152,"date":"2021-09-03T10:11:38","date_gmt":"2021-09-03T08:11:38","guid":{"rendered":"https:\/\/www.infordisa.com\/soc\/?post_type=glossary&#038;p=2152"},"modified":"2021-10-19T13:28:06","modified_gmt":"2021-10-19T11:28:06","slug":"backup","status":"publish","type":"glossary","link":"https:\/\/www.infordisa.com\/soc\/glosario-definicion\/backup\/","title":{"rendered":"backup"},"content":{"rendered":"<p>Una&nbsp;<b>copia de seguridad<\/b>,&nbsp;<b>respaldo,<\/b>&nbsp;<b>copia de respaldo<\/b>&nbsp;o&nbsp;<b>copia de reserva<\/b>&nbsp;(en&nbsp;ingl&eacute;s&nbsp;<i>backup<\/i>&nbsp;y&nbsp;<i>data backup<\/i>) en ciencias de la&nbsp;informaci&oacute;n&nbsp;e&nbsp;inform&aacute;tica&nbsp;es una copia de los datos originales que se realiza con el fin de disponer de un medio para recuperarlos en caso de su p&eacute;rdida. Las copias de seguridad son &uacute;tiles ante distintos eventos y usos: recuperar los sistemas inform&aacute;ticos y los datos de una cat&aacute;strofe inform&aacute;tica, natural o ataque; restaurar una peque&ntilde;a cantidad de archivos que pueden haberse&nbsp;eliminado&nbsp;accidentalmente,&nbsp;corrompido, infectado por un&nbsp;<a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/glosario-definicion\/virus\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>virus<\/a> inform&aacute;tico&nbsp;u otras causas; guardar informaci&oacute;n hist&oacute;rica de forma m&aacute;s econ&oacute;mica que los&nbsp;discos duros&nbsp;y adem&aacute;s permitiendo el traslado a ubicaciones distintas de la de los datos originales; etc.<\/p>\n<p>El proceso de copia de seguridad se complementa con otro conocido como restauraci&oacute;n de los datos, que es la acci&oacute;n de leer y grabar en la ubicaci&oacute;n original u otra alternativa los datos requeridos. La p&eacute;rdida de datos es muy com&uacute;n, el 66&nbsp;% de los usuarios de&nbsp;Internet&nbsp;han sufrido una seria&nbsp;p&eacute;rdida de datos&nbsp;en alg&uacute;n momento.<sup id=\"cite_ref-1\" class=\"reference separada\"><\/sup>&#8203;<\/p>\n<p>Ya que los sistemas de respaldo contienen por lo menos una copia de todos los datos que vale la pena salvar, deben tenerse en cuenta los requerimientos de almacenamiento. La organizaci&oacute;n del espacio de almacenamiento y la administraci&oacute;n del proceso de efectuar la copia de seguridad son tareas complicadas. Para brindar una estructura de almacenamiento es conveniente utilizar un modelo de almacenaje de datos. En noviembre de 2010 exist&iacute;an muchos tipos diferentes de&nbsp;dispositivos para almacenar datos&nbsp;que eran &uacute;tiles para hacer copias de seguridad, cada uno con sus ventajas y desventajas a tener en cuenta para elegirlos, como duplicidad, seguridad en los datos y facilidad de traslado.<\/p>\n<p>Antes de que los datos sean enviados a su lugar de almacenamiento se lo debe seleccionar, extraer y manipular. Se han desarrollado muchas t&eacute;cnicas diferentes para optimizar el procedimiento de efectuar los backups. Estos procedimientos incluyen entre otros optimizaciones para trabajar con archivos abiertos y fuentes de datos en uso y tambi&eacute;n incluyen procesos de&nbsp;compresi&oacute;n, <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/glosario-definicion\/cifrado\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>cifrado<\/a>, y procesos de deduplicaci&oacute;n, entendi&eacute;ndose por esto &uacute;ltimo a una forma espec&iacute;fica de compresi&oacute;n donde los datos superfluos son eliminados.<\/p>\n<p><strong>Sin&oacute;nimo: <\/strong>copia de seguridad, copia de respaldo<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Una copia de seguridad, respaldo, copia de respaldo o copia de reserva en ciencias de la informaci&oacute;n e inform&aacute;tica es una copia de los datos originales que se realiza con el fin de disponer de un medio para recuperarlos en caso de su p&eacute;rdida.<\/p>\n","protected":false},"author":2,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-2152","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<title>backup - 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