{"id":4307,"date":"2026-09-22T12:46:18","date_gmt":"2026-09-22T10:46:18","guid":{"rendered":"https:\/\/www.appon.cloud\/?p=4307"},"modified":"2026-09-22T13:03:54","modified_gmt":"2026-09-22T11:03:54","slug":"zalohovani-neni-samozrejmost-a-v-cloudu-uz-vubec-ne","status":"publish","type":"post","link":"https:\/\/www.appon.cloud\/cs\/zalohovani-neni-samozrejmost-a-v-cloudu-uz-vubec-ne\/","title":{"rendered":"Z\u00e1lohov\u00e1n\u00ed nen\u00ed samoz\u0159ejmost. A v cloudu u\u017e v\u016fbec ne"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><em>Z\u00e1lohov\u00e1n\u00ed sv\u00fdch dat pova\u017euj\u00ed firmy \u010dasto za vy\u0159e\u0161en\u00e9, dokud ov\u0161em nenastane probl\u00e9m. Teprve kdy\u017e dojde k poru\u0161e serveru, po\u0161kozen\u00ed datab\u00e1ze, necht\u011bn\u00e9mu smaz\u00e1n\u00ed dat nebo kybernetick\u00e9mu \u00fatoku, se uk\u00e1\u017ee, zda z\u00e1lohov\u00e1n\u00ed skute\u010dn\u011b funguje tak, jak m\u00e1.<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkter\u00e9 firmy dnes odb\u00fdvaj\u00ed ot\u00e1zky na z\u00e1lohov\u00e1n\u00ed&nbsp;t\u00edm, \u017ee maj\u00ed \u201ev\u0161echno v&nbsp;cloudu\u201c. Jen\u017ee pr\u00e1v\u011b v prost\u0159ed\u00ed cloudov\u00fdch slu\u017eeb je na m\u00edst\u011b je\u0161t\u011b v\u011bt\u0161\u00ed obez\u0159etnost. Samotn\u00fd fakt, \u017ee jsou firemn\u00ed data nebo aplikace um\u00edst\u011bny a provozov\u00e1ny v cloudu, toti\u017e automaticky neznamen\u00e1, \u017ee jsou tak\u00e9 z\u00e1lohov\u00e1ny. U \u0159ady cloudov\u00fdch slu\u017eeb je z\u00e1lohov\u00e1n\u00ed nab\u00edzeno jako samostatn\u00e1 nebo voliteln\u00e1 slu\u017eba a jeho rozsah se m\u016f\u017ee mezi jednotliv\u00fdmi poskytovateli v\u00fdrazn\u011b li\u0161it. Z\u00e1kazn\u00edk si mus\u00ed ov\u011b\u0159it nejen to, zda je z\u00e1lohov\u00e1n\u00ed sou\u010d\u00e1st\u00ed slu\u017eby, ale tak\u00e9 v jak\u00e9m rozsahu, s jakou histori\u00ed a s jak\u00fdmi garancemi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ani samotn\u00e1 existence n\u011bjak\u00e9 z\u00e1lohy dat toti\u017e je\u0161t\u011b neznamen\u00e1, \u017ee je firma dob\u0159e chr\u00e1n\u011bn\u00e1 p\u0159ed jejich ztr\u00e1tou. D\u016fle\u017eit\u00e9 je p\u0159edev\u0161\u00edm v\u011bd\u011bt, co se z\u00e1lohuje, jak \u010dasto, jak dlouho jsou z\u00e1lohy uchov\u00e1v\u00e1ny, kde jsou ulo\u017eeny a jak\u00fdm zp\u016fsobem (a jak rychle) z nich lze data obnovit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1loha nen\u00ed jen ochrana proti poru\u0161e<\/h2>\n\n\n<style>.kb-row-layout-id4307_4bcd17-2b > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id4307_4bcd17-2b > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id4307_4bcd17-2b > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-xxs, 0.5rem);padding-bottom:var(--global-kb-spacing-xxs, 0.5rem);grid-template-columns:minmax(0, 2fr) minmax(0, 1fr);}.kb-row-layout-id4307_4bcd17-2b > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id4307_4bcd17-2b > .kt-row-column-wrap{grid-template-columns:minmax(0, 2fr) minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id4307_4bcd17-2b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id4307_4bcd17-2b alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-left-golden kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column4307_d37cbb-27 > .kt-inside-inner-col,.kadence-column4307_d37cbb-27 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column4307_d37cbb-27 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column4307_d37cbb-27 > .kt-inside-inner-col{flex-direction:column;}.kadence-column4307_d37cbb-27 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column4307_d37cbb-27 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column4307_d37cbb-27{position:relative;}@media all and (max-width: 1024px){.kadence-column4307_d37cbb-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column4307_d37cbb-27 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column4307_d37cbb-27\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\">D\u0159\u00edve bylo z\u00e1lohov\u00e1n\u00ed \u010dasto spojov\u00e1no p\u0159edev\u0161\u00edm s&nbsp;hrozbou poruchy disku nebo serveru. Dnes je ale situace v\u00fdrazn\u011b slo\u017eit\u011bj\u0161\u00ed. Jedn\u00edm z nejv\u011bt\u0161\u00edch rizik jsou ransomwarov\u00e9 \u00fatoky, p\u0159i kter\u00fdch \u0161kodliv\u00fd software za\u0161ifruje firemn\u00ed data a n\u00e1sledn\u011b po\u017eaduje v\u00fdkupn\u00e9 za jejich zp\u0159\u00edstupn\u011bn\u00ed.<br><br><a href=\"https:\/\/www.appon.cloud\/cs\/kyberbezpecnost\/\" target=\"_blank\" rel=\"noreferrer noopener\">Modern\u00ed \u00fatoky<\/a> se p\u0159itom nemus\u00ed zam\u011b\u0159ovat pouze na produk\u010dn\u00ed data. Pokud m\u00e1 \u00fato\u010dn\u00edk dostate\u010dn\u00fd p\u0159\u00edstup k infrastruktu\u0159e, m\u016f\u017ee se pokusit po\u0161kodit nebo odstranit tak\u00e9 existuj\u00edc\u00ed z\u00e1lohy.<br><br>Pr\u00e1v\u011b proto se st\u00e1le v\u00edce prosazuj\u00ed takzvan\u00e9 nep\u0159epsateln\u00e9 neboli immutable z\u00e1lohy. Jejich princip spo\u010d\u00edv\u00e1 v tom, \u017ee po ur\u010ditou dobu nen\u00ed mo\u017en\u00e9 ulo\u017eenou z\u00e1lohu b\u011b\u017en\u00fdm zp\u016fsobem zm\u011bnit nebo smazat. Ani v p\u0159\u00edpad\u011b kompromitace produk\u010dn\u00edho serveru tak \u00fato\u010dn\u00edk nemus\u00ed z\u00edskat mo\u017enost zni\u010dit v\u0161echny body, ze kter\u00fdch lze syst\u00e9m obnovit.<\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column4307_19db22-4c > .kt-inside-inner-col{display:flex;}.kadence-column4307_19db22-4c > .kt-inside-inner-col,.kadence-column4307_19db22-4c > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column4307_19db22-4c > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_19db22-4c > .kt-inside-inner-col > .aligncenter{width:100%;}.kt-row-column-wrap > .kadence-column4307_19db22-4c{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_19db22-4c > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column4307_19db22-4c{position:relative;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column4307_19db22-4c{align-self:center;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 1024px){.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column4307_19db22-4c{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_19db22-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column4307_19db22-4c\"><div class=\"kt-inside-inner-col\"><style>.kb-image4307_8089dd-b0 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image4307_8089dd-b0 size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"500\" height=\"300\" src=\"https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px4.jpg\" alt=\"\" class=\"kb-img wp-image-4312\" srcset=\"https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px4.jpg 500w, https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px4-300x180.jpg 300w, https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px4-150x90.jpg 150w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">U d\u016fle\u017eit\u00fdch firemn\u00edch syst\u00e9m\u016f by z\u00e1lohov\u00e1n\u00ed nem\u011blo b\u00fdt postaveno pouze na jedn\u00e9 kopii dat. V praxi je vhodn\u00e9 kombinovat z\u00e1lohu cel\u00e9ho serveru s&nbsp;d\u00edl\u010d\u00edmi z\u00e1lohami konkr\u00e9tn\u00edch aplikac\u00ed nebo datab\u00e1z\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1loha cel\u00e9ho serveru je d\u016fle\u017eit\u00e1 p\u0159edev\u0161\u00edm v p\u0159\u00edpad\u011b z\u00e1va\u017en\u011bj\u0161\u00edho incidentu. Umo\u017e\u0148uje obnovit nejen samotn\u00e1 data, ale tak\u00e9 opera\u010dn\u00ed syst\u00e9m, nainstalovan\u00e9 aplikace a konfiguraci prost\u0159ed\u00ed. Naproti tomu datab\u00e1zov\u00e1 z\u00e1loha m\u016f\u017ee b\u00fdt prakti\u010dt\u011bj\u0161\u00ed nap\u0159\u00edklad ve chv\u00edli, kdy je pot\u0159eba obnovit \u00fa\u010detn\u00ed nebo ERP syst\u00e9m do stavu p\u0159ed n\u011bkolika hodinami \u010di dny, ani\u017e by bylo nutn\u00e9 obnovovat cel\u00fd server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ide\u00e1ln\u00ed je strategie v\u00edcevrstv\u00e9ho z\u00e1lohov\u00e1n\u00ed, kdy jednotliv\u00e9 typy z\u00e1loh \u0159e\u0161\u00ed r\u016fzn\u00e9 sc\u00e9n\u00e1\u0159e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cloud automaticky neznamen\u00e1, \u017ee m\u00e1te vy\u0159e\u0161en\u00e9 z\u00e1lohov\u00e1n\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S p\u0159echodem firemn\u00edch syst\u00e9m\u016f do cloudu vznikl pom\u011brn\u011b roz\u0161\u00ed\u0159en\u00fd dojem, \u017ee ot\u00e1zku z\u00e1lohov\u00e1n\u00ed automaticky \u0159e\u0161\u00ed poskytovatel cloudov\u00e9 slu\u017eby. To ale nemus\u00ed b\u00fdt pravda. Cloud m\u016f\u017ee nab\u00edzet vysokou dostupnost, redundantn\u00ed hardware nebo ochranu proti selh\u00e1n\u00ed konkr\u00e9tn\u00edho fyzick\u00e9ho serveru. To v\u0161ak st\u00e1le nen\u00ed tot\u00e9\u017e jako z\u00e1loha va\u0161ich dat.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Pokud nap\u0159\u00edklad dojde k po\u0161kozen\u00ed datab\u00e1ze, necht\u011bn\u00e9mu smaz\u00e1n\u00ed dat nebo za\u0161ifrov\u00e1n\u00ed serveru ransomwarem, samotn\u00e1 redundance infrastruktury probl\u00e9m nevy\u0159e\u0161\u00ed. Po\u0161kozen\u00e1 nebo za\u0161ifrovan\u00e1 data se mohou velmi rychle objevit na v\u0161ech provozn\u00edch kopi\u00edch syst\u00e9mu.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Proto by se firmy m\u011bly u sv\u00e9ho poskytovatele zaj\u00edmat nejen o to, zda slu\u017eba \u201eobsahuje z\u00e1lohov\u00e1n\u00ed\u201c, ale p\u0159edev\u0161\u00edm o jeho konkr\u00e9tn\u00ed parametry. D\u016fle\u017eit\u00e9 je v\u011bd\u011bt, kolik z\u00e1loh je vytv\u00e1\u0159eno, jak \u010dasto vznikaj\u00ed, jak dlouho jsou uchov\u00e1v\u00e1ny, zda jsou odd\u011bleny od produk\u010dn\u00edho prost\u0159ed\u00ed a zda jsou n\u011bkter\u00e9 z nich chr\u00e1n\u011bn\u00e9 proti p\u0159eps\u00e1n\u00ed nebo smaz\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stejn\u011b d\u016fle\u017eit\u00e1 je ale je\u0161t\u011b jedna ot\u00e1zka: Jakou m\u00e1 z\u00e1kazn\u00edk garanci, \u017ee z\u00e1lohy skute\u010dn\u011b prob\u00edhaj\u00ed? Jin\u00fdmi slovy, nesta\u010d\u00ed pouze deklarovan\u00fd z\u00e1lohovac\u00ed pl\u00e1n. D\u016fle\u017eit\u00e9 je v\u011bd\u011bt, zda poskytovatel pr\u016fb\u011bh z\u00e1loh monitoruje, zda vyhodnocuje jejich p\u0159\u00edpadn\u00e1 selh\u00e1n\u00ed a jak\u00fdm zp\u016fsobem ov\u011b\u0159uje, \u017ee jsou z\u00e1lohy tak\u00e9 pou\u017eiteln\u00e9 pro obnovu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z pohledu z\u00e1kazn\u00edka je toti\u017e z\u00e1sadn\u00ed rozd\u00edl mezi t\u00edm, \u017ee poskytovatel \u201em\u00e1 nastaven\u00e9 z\u00e1lohov\u00e1n\u00ed\u201c, a t\u00edm, \u017ee skute\u010dn\u011b garantuje jeho pravideln\u00fd pr\u016fb\u011bh a \u0159e\u0161\u00ed p\u0159\u00edpadn\u00e9 chyby.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rozd\u00edl mezi jednotliv\u00fdmi slu\u017ebami tak m\u016f\u017ee b\u00fdt z\u00e1sadn\u00ed. N\u011bkter\u00e1 m\u016f\u017ee vytv\u00e1\u0159et pouze jednu kr\u00e1tkodobou z\u00e1lohu, jin\u00e1 uchov\u00e1v\u00e1 n\u011bkolik historick\u00fdch stav\u016f. N\u011bkde jsou z\u00e1lohy ulo\u017eeny ve stejn\u00e9 infrastruktu\u0159e jako samotn\u00fd server, jinde jsou od produk\u010dn\u00edho prost\u0159ed\u00ed odd\u011blen\u00e9. A rozd\u00edl je tak\u00e9 v tom, zda poskytovatel z\u00e1lohov\u00e1n\u00ed pouze technicky umo\u017e\u0148uje, nebo jestli za pravideln\u00e9 vytv\u00e1\u0159en\u00ed z\u00e1loh skute\u010dn\u011b odpov\u00edd\u00e1.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak \u0159e\u0161\u00ed z\u00e1lohov\u00e1n\u00ed AppOn.cloud<\/h2>\n\n\n<style>.kb-row-layout-id4307_594dd8-9b > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id4307_594dd8-9b > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id4307_594dd8-9b > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-xxs, 0.5rem);grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id4307_594dd8-9b > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id4307_594dd8-9b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 767px){.kb-row-layout-id4307_594dd8-9b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id4307_594dd8-9b alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column4307_33dc56-15 > .kt-inside-inner-col{display:flex;}.kadence-column4307_33dc56-15 > .kt-inside-inner-col,.kadence-column4307_33dc56-15 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column4307_33dc56-15 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_33dc56-15 > .kt-inside-inner-col > .aligncenter{width:100%;}.kt-row-column-wrap > .kadence-column4307_33dc56-15{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_33dc56-15 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column4307_33dc56-15{position:relative;}@media all and (max-width: 1024px){.kt-row-column-wrap > .kadence-column4307_33dc56-15{align-self:center;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15{align-self:auto;}}@media all and (max-width: 1024px){.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 1024px){.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kt-row-column-wrap > .kadence-column4307_33dc56-15{align-self:center;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15{align-self:auto;}.kt-inner-column-height-full:not(.kt-has-1-columns) > .wp-block-kadence-column.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}.kadence-column4307_33dc56-15 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column4307_33dc56-15\"><div class=\"kt-inside-inner-col\"><style>.kb-image4307_0349a4-ab .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image4307_0349a4-ab\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"500\" height=\"300\" src=\"https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px5.jpg\" alt=\"\" class=\"kb-img wp-image-4311\" srcset=\"https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px5.jpg 500w, https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px5-300x180.jpg 300w, https:\/\/www.appon.cloud\/wp-content\/uploads\/2026\/09\/AOC_web_obrazky-500-x-300-px5-150x90.jpg 150w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column4307_d16098-c0 > .kt-inside-inner-col,.kadence-column4307_d16098-c0 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column4307_d16098-c0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column4307_d16098-c0 > .kt-inside-inner-col{flex-direction:column;}.kadence-column4307_d16098-c0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column4307_d16098-c0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column4307_d16098-c0{position:relative;}@media all and (max-width: 1024px){.kadence-column4307_d16098-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column4307_d16098-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column4307_d16098-c0\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\">V prost\u0159ed\u00ed <a href=\"https:\/\/www.appon.cloud\" target=\"_blank\" rel=\"noreferrer noopener\">AppOn.cloud<\/a> je sou\u010d\u00e1st\u00ed slu\u017eby pravideln\u00e9 z\u00e1lohov\u00e1n\u00ed kompletn\u00edch virtu\u00e1ln\u00edch server\u016f. Standardn\u011b jsou uchov\u00e1v\u00e1ny dv\u011b denn\u00ed z\u00e1lohy a jedna t\u00fddenn\u00ed z\u00e1loha cel\u00e9ho serveru.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00fddenn\u00ed z\u00e1loha je nav\u00edc vytv\u00e1\u0159ena jako nep\u0159epsateln\u00e1, tedy zp\u016fsobem, kter\u00fd zvy\u0161uje jej\u00ed ochranu proti necht\u011bn\u00e9mu odstran\u011bn\u00ed nebo pro situace, kdy by se \u00fato\u010dn\u00edk pokusil po\u0161kodit tak\u00e9 z\u00e1lo\u017en\u00ed data.<br><br>Ani z\u00e1lohov\u00e1n\u00ed cel\u00e9ho serveru ale nemus\u00ed b\u00fdt kone\u010dn\u00fdm \u0159e\u0161en\u00edm. U firemn\u00edch aplikac\u00ed, zejm\u00e9na<a href=\"https:\/\/www.appon.cloud\/cs\/ucetnictvi-v-cloudu\/\" target=\"_blank\" rel=\"noreferrer noopener\"> \u00fa\u010detn\u00edch a ERP syst\u00e9m\u016f<\/a>, d\u00e1v\u00e1 \u010dasto smysl vytv\u00e1\u0159et samostatn\u00e9 datab\u00e1zov\u00e9 z\u00e1lohy. Ty mohou vznikat \u010dast\u011bji ne\u017e z\u00e1loha cel\u00e9ho serveru a umo\u017e\u0148uj\u00ed obnovit konkr\u00e9tn\u00ed aplikaci bez nutnosti obnovovat cel\u00e9 virtu\u00e1ln\u00ed prost\u0159ed\u00ed.<br><br>Datab\u00e1zovou z\u00e1lohu lze nap\u0159\u00edklad ukl\u00e1dat lok\u00e1ln\u011b na virtu\u00e1ln\u00edm serveru. To je u\u017eite\u010dn\u00e9 pro rychlou obnovu dat, ale samo o sob\u011b to nelze pova\u017eovat za plnohodnotnou ochranu. Pokud by toti\u017e do\u0161lo k \u00fapln\u00e9 kompromitaci serveru, m\u016f\u017ee b\u00fdt ohro\u017eena produk\u010dn\u00ed datab\u00e1ze i jej\u00ed lok\u00e1ln\u00ed z\u00e1loha.<\/p>\n<\/div><\/div>\n\n<\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">Vy\u0161\u0161\u00ed \u00farove\u0148 ochrany p\u0159edstavuje mo\u017enost takov\u00e9 datab\u00e1zov\u00e9 z\u00e1lohy n\u00e1sledn\u011b p\u0159en\u00e1\u0161et do samostatn\u00e9ho zabezpe\u010den\u00e9ho \u00falo\u017ei\u0161t\u011b cloudov\u00e9 slu\u017eby. Z\u00e1loha se t\u00edm odd\u011bl\u00ed od prost\u0159ed\u00ed, ve kter\u00e9m b\u011b\u017e\u00ed samotn\u00e1 aplikace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdsledkem m\u016f\u017ee b\u00fdt n\u011bkolik na sob\u011b nez\u00e1visl\u00fdch vrstev ochrany. Firma m\u00e1 k dispozici pravideln\u00e9 z\u00e1lohy cel\u00e9ho serveru, nep\u0159epsatelnou t\u00fddenn\u00ed z\u00e1lohu, samostatn\u00e9 datab\u00e1zov\u00e9 z\u00e1lohy ERP syst\u00e9m\u016f a podle pot\u0159eby tak\u00e9 jejich kopie v odd\u011blen\u00e9m zabezpe\u010den\u00e9m \u00falo\u017ei\u0161ti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nejd\u016fle\u017eit\u011bj\u0161\u00ed ot\u00e1zka zn\u00ed: Dok\u00e1\u017eeme data obnovit?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1lohov\u00e1n\u00ed by nikdy nem\u011blo b\u00fdt hodnoceno pouze podle toho, zda n\u011bkde existuje kopie dat. Podstatn\u00e9 je, zda lze po\u017eadovan\u00e1 data skute\u010dn\u011b obnovit a jak star\u00e1 p\u0159i obnov\u011b budou. Firma by tedy m\u011bla zn\u00e1t nejen po\u010det z\u00e1loh, ale tak\u00e9 jejich historii, zp\u016fsob pou\u017eit\u00ed a m\u00edru garance jejich pravideln\u00e9ho vzniku. U n\u011bkter\u00fdch syst\u00e9m\u016f m\u016f\u017ee b\u00fdt p\u0159ijateln\u00e9 obnovit data z p\u0159edchoz\u00edho dne, u jin\u00fdch je ztr\u00e1ta n\u011bkolika hodin pr\u00e1ce z\u00e1sadn\u00ed probl\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stejn\u011b d\u016fle\u017eit\u00e1 je tak\u00e9 rychlost samotn\u00e9 obnovy. Obnova jedn\u00e9 datab\u00e1ze se li\u0161\u00ed od kompletn\u00ed obnovy serveru o velikosti n\u011bkolika terabajt\u016f. I \u010das pot\u0159ebn\u00fd k obnov\u011b dat je nutn\u00e9 zapo\u010d\u00edtat do doby p\u0159\u00edpadn\u00e9ho v\u00fdpadku. Z\u00e1lohov\u00e1n\u00ed proto nen\u00ed pouze technick\u00e1 vlastnost serveru nebo cloudov\u00e9 slu\u017eby. Je sou\u010d\u00e1st\u00ed \u0159\u00edzen\u00ed rizik cel\u00e9 spole\u010dnosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159edev\u0161\u00edm u cloudov\u00fdch slu\u017eeb se vyplat\u00ed zjistit, co p\u0159esn\u011b poskytovatel garantuje. Nesta\u010d\u00ed v\u011bd\u011bt (nebo si dokonce jen myslet), \u017ee \u201ecloud je z\u00e1lohovan\u00fd\u201c. D\u016fle\u017eit\u00e9 je zn\u00e1t, kolik z\u00e1loh existuje, jak dlouho jsou uchov\u00e1v\u00e1ny, kter\u00e9 z nich jsou chr\u00e1n\u011bny proti p\u0159eps\u00e1n\u00ed a jak je zaji\u0161t\u011bno, \u017ee z\u00e1lohy skute\u010dn\u011b pravideln\u011b vznikaj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Proto\u017ee skute\u010dn\u00e1 hodnota z\u00e1lohy se uk\u00e1\u017ee a\u017e ve chv\u00edli, kdy ji pot\u0159ebujete pou\u017e\u00edt.<br><br>Nejste si jist\u00ed, zda je va\u0161e sou\u010dasn\u00e9 z\u00e1lohov\u00e1n\u00ed dostate\u010dn\u00e9? Kontaktujte n\u00e1s a spole\u010dn\u011b prov\u011b\u0159\u00edme, jak jsou chr\u00e1n\u011bna va\u0161e data v prost\u0159ed\u00ed AppOn.cloud.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns4307_a2d511-5c{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns4307_a2d511-5c .kt-button{font-weight:normal;font-style:normal;}.kt-btns4307_a2d511-5c .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns4307_a2d511-5c .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns4307_a2d511-5c\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn4307_9c8558-fb.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn4307_9c8558-fb.kb-button{color:#0000c8;background:#00e68c;border-top-left-radius:50px;border-top-right-radius:50px;border-bottom-right-radius:50px;border-bottom-left-radius:50px;}<\/style><a class=\"kb-button kt-button button kb-btn4307_9c8558-fb kt-btn-size-large kt-btn-width-type-auto kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"https:\/\/www.appon.cloud\/cs\/kontakty\/#contact-form\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"kt-btn-inner-text\">Nez\u00e1visle konzultovat \u0159e\u0161en\u00ed<\/span><\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Z\u00e1lohov\u00e1n\u00ed sv\u00fdch dat pova\u017euj\u00ed firmy \u010dasto za vy\u0159e\u0161en\u00e9, dokud ov\u0161em nenastane probl\u00e9m. Teprve kdy\u017e dojde k poru\u0161e serveru, po\u0161kozen\u00ed datab\u00e1ze, necht\u011bn\u00e9mu smaz\u00e1n\u00ed dat nebo kybernetick\u00e9mu \u00fatoku, se uk\u00e1\u017ee, zda z\u00e1lohov\u00e1n\u00ed skute\u010dn\u011b funguje tak, jak m\u00e1. N\u011bkter\u00e9 firmy dnes odb\u00fdvaj\u00ed ot\u00e1zky na z\u00e1lohov\u00e1n\u00ed&nbsp;t\u00edm, \u017ee maj\u00ed \u201ev\u0161echno v&nbsp;cloudu\u201c. Jen\u017ee pr\u00e1v\u011b v prost\u0159ed\u00ed cloudov\u00fdch slu\u017eeb je na m\u00edst\u011b [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":4309,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52],"tags":[],"class_list":["post-4307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloudove-sluzby"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Z\u00e1lohov\u00e1n\u00ed nen\u00ed samoz\u0159ejmost. A v cloudu u\u017e v\u016fbec ne - www.appon.cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.appon.cloud\/cs\/zalohovani-neni-samozrejmost-a-v-cloudu-uz-vubec-ne\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Z\u00e1lohov\u00e1n\u00ed nen\u00ed samoz\u0159ejmost. A v cloudu u\u017e v\u016fbec ne - www.appon.cloud\" \/>\n<meta property=\"og:description\" content=\"Z\u00e1lohov\u00e1n\u00ed sv\u00fdch dat pova\u017euj\u00ed firmy \u010dasto za vy\u0159e\u0161en\u00e9, dokud ov\u0161em nenastane probl\u00e9m. Teprve kdy\u017e dojde k poru\u0161e serveru, po\u0161kozen\u00ed datab\u00e1ze, necht\u011bn\u00e9mu smaz\u00e1n\u00ed dat nebo kybernetick\u00e9mu \u00fatoku, se uk\u00e1\u017ee, zda z\u00e1lohov\u00e1n\u00ed skute\u010dn\u011b funguje tak, jak m\u00e1. N\u011bkter\u00e9 firmy dnes odb\u00fdvaj\u00ed ot\u00e1zky na z\u00e1lohov\u00e1n\u00ed&nbsp;t\u00edm, \u017ee maj\u00ed \u201ev\u0161echno v&nbsp;cloudu\u201c. 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