{"id":567,"date":"2026-06-17T10:32:26","date_gmt":"2026-06-17T08:32:26","guid":{"rendered":"https:\/\/www.it-resell.com\/blog\/glossar\/backup-strategie\/"},"modified":"2026-06-17T10:32:26","modified_gmt":"2026-06-17T08:32:26","slug":"backup-strategie","status":"publish","type":"glossar","link":"https:\/\/www.it-resell.com\/blog\/glossar\/backup-strategie","title":{"rendered":"Backup-Strategie (3-2-1-Regel)"},"content":{"rendered":"<p>Die <strong>3-2-1-Backup-Regel<\/strong> besagt: mindestens 3 Kopien der Daten, auf 2 unterschiedlichen Medientypen (z. B. Festplatte + Tape), davon 1 Kopie off-site oder offline. Eine Off-Site-Kopie sch\u00fctzt vor physischen Katastrophen (Brand, \u00dcberflutung); eine Offline-Kopie sch\u00fctzt vor Ransomware. Moderne Erweiterung: 3-2-1-1-0 (+ 1 unver\u00e4nderliche\/WORM-Kopie, 0 ungetestete Backups).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bew\u00e4hrte Datensicherungsregel: 3 Kopien, 2 Medientypen, 1 Off-Site.<\/p>\n","protected":false},"template":"","meta":{"kurzdefinition":"Bew\u00e4hrte Datensicherungsregel: 3 Kopien, 2 Medientypen, 1 Off-Site.","synonyme":"","verwandte_begriffe":"","shop_ziel":"","stufe":""},"produktbereich":[],"hersteller":[],"produkttyp":[],"thema":[],"class_list":["post-567","glossar","type-glossar","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/glossar\/567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/glossar"}],"about":[{"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/types\/glossar"}],"wp:attachment":[{"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/media?parent=567"}],"wp:term":[{"taxonomy":"produktbereich","embeddable":true,"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/produktbereich?post=567"},{"taxonomy":"hersteller","embeddable":true,"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/hersteller?post=567"},{"taxonomy":"produkttyp","embeddable":true,"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/produkttyp?post=567"},{"taxonomy":"thema","embeddable":true,"href":"https:\/\/www.it-resell.com\/blog\/wp-json\/wp\/v2\/thema?post=567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}