{"id":14536,"date":"2015-12-01T10:00:57","date_gmt":"2015-12-01T09:00:57","guid":{"rendered":"http:\/\/nolabnoparty.com\/?p=14536"},"modified":"2023-07-16T11:25:00","modified_gmt":"2023-07-16T09:25:00","slug":"esxi-6-0-cbt-reset-for-vms-to-fix-backup-issue","status":"publish","type":"post","link":"https:\/\/nolabnoparty.com\/en\/esxi-6-0-cbt-reset-for-vms-to-fix-backup-issue\/","title":{"rendered":"ESXi 6.0 CBT reset for VMs to fix backup issue"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter wp-image-14537 size-full\" title=\"esxi60cbtreset01\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset01.jpg\" alt=\"esxi60cbtreset01\" width=\"602\" height=\"202\" \/><\/p>\n<p>The installation of the\u00a0<a href=\"https:\/\/nolabnoparty.com\/en\/esxi-6-0-patch-for-cbt-issue-released\/\" target=\"_blank\" rel=\"noopener\">VMware patch<\/a>\u00a0to fix the CBT issue\u00a0found in ESXi\u00a06.0\u00a0is not sufficient and\u00a0you should perform also\u00a0the\u00a0<strong>CBT reset<\/strong> for all VMs to guarantee\u00a0consistent\u00a0backups.<\/p>\n<p>This additional step is required since <strong>existing CBT maps<\/strong> may contain issues with the result of having future full backups inconsistent.<!--more--><\/p>\n<p>&nbsp;<\/p>\n<h2>Reset CBT<\/h2>\n<p>Before proceeding make sure you don't have <strong>any snapshot<\/strong> in the VM you are processing.<\/p>\n<p>From vSphere Web Client, right click the VM to process\u00a0and select <strong>Snapshots &gt; Manage Snapshots<\/strong> option.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14538 size-large\" title=\"esxi60cbtreset02\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset02-600x312.jpg\" alt=\"esxi60cbtreset02\" width=\"600\" height=\"312\" \/><\/p>\n<p>Check no snapshots are present then click <strong>Close<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14539 size-large\" title=\"esxi60cbtreset03\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset03-600x370.jpg\" alt=\"esxi60cbtreset03\" width=\"600\" height=\"370\" \/><\/p>\n<p>Right click the VM and select <strong>Power &gt; Shut Down Guest OS<\/strong>\u00a0option.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14541 size-large\" title=\"esxi60cbtreset04\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset04-600x312.jpg\" alt=\"esxi60cbtreset04\" width=\"600\" height=\"312\" \/><\/p>\n<p>Click <strong>Yes<\/strong> to confirm.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14540 size-full\" title=\"esxi60cbtreset05\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset05.jpg\" alt=\"esxi60cbtreset05\" width=\"390\" height=\"114\" \/><\/p>\n<p>Right click the VM and select <strong>Edit Settings<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14542 size-full\" title=\"esxi60cbtreset06\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset06.jpg\" alt=\"esxi60cbtreset06\" width=\"482\" height=\"509\" \/><\/p>\n<p>Go to <strong>VM Options<\/strong> tab and select\u00a0<strong>Advanced<\/strong> section. Click on\u00a0<strong>Edit Configuration<\/strong>\u00a0button.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14543 size-large\" title=\"esxi60cbtreset07\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset07-600x626.jpg\" alt=\"esxi60cbtreset07\" width=\"600\" height=\"626\" \/><\/p>\n<p>Set <em><strong>ctkEnable<\/strong> <\/em>value to <strong>false<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14544 size-large\" title=\"esxi60cbtreset08\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset08-600x443.jpg\" alt=\"esxi60cbtreset08\" width=\"600\" height=\"443\" \/><\/p>\n<p>Set the all of the <em><strong>scsi0:<span style=\"color: #0000ff;\">x<\/span>.ctkEnabled<\/strong><\/em> values to <strong>false<\/strong>\u00a0then click\u00a0<strong>OK<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14545 size-large\" title=\"esxi60cbtreset09\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/11\/esxi60cbtreset09-600x443.jpg\" alt=\"esxi60cbtreset09\" width=\"600\" height=\"443\" \/><\/p>\n<p>Click <strong>OK<\/strong> to save configuration.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14547 size-large\" title=\"esxi60cbtreset10\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/12\/esxi60cbtreset10-600x626.jpg\" alt=\"esxi60cbtreset10\" width=\"600\" height=\"626\" \/><\/p>\n<p>Under <strong>Related Objects<\/strong> section, click the <strong>Storage<\/strong> where the VM is stored.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14548 size-full\" title=\"esxi60cbtreset11\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/12\/esxi60cbtreset11.jpg\" alt=\"esxi60cbtreset11\" width=\"594\" height=\"450\" \/><\/p>\n<p>Browse the\u00a0storage and click the VM folder to access the files. Select all the <em><strong>-ctk.vmdk<\/strong><\/em> files and click the <strong>X icon<\/strong> to\u00a0delete selected files.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14549 size-large\" title=\"esxi60cbtreset12\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/12\/esxi60cbtreset12-600x322.jpg\" alt=\"esxi60cbtreset12\" width=\"600\" height=\"322\" \/><\/p>\n<p>Click <strong>Yes<\/strong> to confirm.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14550 size-full\" title=\"esxi60cbtreset13\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/12\/esxi60cbtreset13.jpg\" alt=\"esxi60cbtreset13\" width=\"246\" height=\"108\" \/><\/p>\n<p>Right click the\u00a0VM and select <strong>Power &gt; Power On<\/strong> option.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-14552 size-large\" title=\"esxi60cbtreset14\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/2015\/12\/esxi60cbtreset14-600x355.jpg\" alt=\"esxi60cbtreset14\" width=\"600\" height=\"355\" \/><\/p>\n<p>From your backup solution, rerun the backup or replica job to <strong>re-enable CBT<\/strong> feature.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/nolabnoparty.com\/wp-content\/uploads\/images\/firma.jpg\" alt=\"firma\" title=\"\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The installation of the\u00a0VMware patch\u00a0to fix the CBT issue\u00a0found in ESXi\u00a06.0\u00a0is not sufficient and\u00a0you should perform also\u00a0the\u00a0CBT reset for all VMs to guarantee\u00a0consistent\u00a0backups. This additional step is required since existing CBT maps may contain issues with the result of having future full backups inconsistent.<\/p>\n","protected":false},"author":3,"featured_media":14537,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"linkedin_93tdZWzMZc_93tdZWzMZc":"","facebook_2879994398731222_17841400390232720":"","twitter_113568041_113568041":"","mastodon_115463926174894442_115463926174894442":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[903,2701],"tags":[1630,580,187,699],"class_list":["post-14536","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vmware-en","category-vsphere-en","tag-cbt","tag-esxi-en","tag-reset","tag-vmware-en","has_thumb"],"_links":{"self":[{"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/posts\/14536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/comments?post=14536"}],"version-history":[{"count":0,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/posts\/14536\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/media\/14537"}],"wp:attachment":[{"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/media?parent=14536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/categories?post=14536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nolabnoparty.com\/en\/wp-json\/wp\/v2\/tags?post=14536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}