{"id":550,"date":"2025-09-03T10:46:51","date_gmt":"2025-09-03T08:46:51","guid":{"rendered":"https:\/\/vmoller.dk\/?p=550"},"modified":"2025-09-03T11:12:15","modified_gmt":"2025-09-03T09:12:15","slug":"vxrail-update-failure-504-gateway-timeout","status":"publish","type":"post","link":"https:\/\/vmoller.dk\/index.php\/2025\/09\/03\/vxrail-update-failure-504-gateway-timeout\/","title":{"rendered":"VxRail Update Failure: 504 Gateway Timeout"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"354\" src=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout-1024x354.png\" alt=\"\" class=\"wp-image-551\" srcset=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout-1024x354.png 1024w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout-300x104.png 300w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout-768x266.png 768w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout-1536x532.png 1536w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/504-gw-timeout.png 1872w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>If you encounter a 504 Gateway Timeout error at 99% of the installation prerequisites, the issue may not actually be with VxRail itself. Instead, check the vCenter server task list and look for the vLCM task &#8220;Sync updates&#8221;<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"147\" src=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sync-1024x147.png\" alt=\"\" class=\"wp-image-556\" srcset=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sync-1024x147.png 1024w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sync-300x43.png 300w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sync-768x110.png 768w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sync.png 1086w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>If this task takes longer than 10 minutes, that\u2019s likely the problem. VxRail launches this task during its prerequisite checks and waits for it to finish\u2014but it only waits for 10 minutes by default. This is a documented issue by Dell, and their recommended workaround is to raise the timeout to 20 minutes.<br>(Dell KB link: https:\/\/www.dell.com\/support\/kbdoc\/en-us\/000204593<br>\u2014 sign-in required)<\/p>\n\n\n\n<p>That works fine\u2014until the Sync Updates task takes more than 20 minutes. I\u2019ve seen this happen, and even if you try to raise the timeout to 30 minutes, you\u2019ll find it still stops at 20 due to a hard-coded limit.<\/p>\n\n\n\n<p>My solution is simple\u2014and easier than Dell\u2019s SSH method.<br>Rather than extending the timeout, make the Sync Updates task complete faster than 20 minutes (or 10 minutes if you skip Dell\u2019s workaround):<\/p>\n\n\n\n<p>Go to the vLCM page in vCenter \u2192 Settings \u2192 Patch Setup.<\/p>\n\n\n\n<p>Disable all download sources containing *vmware.com* in the URL (these are no longer valid and cannot be removed at the time of writing).<\/p>\n\n\n\n<p>Disable all Broadcom-related sources as well. (Don\u2019t delete them\u2014just disable.)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1355\" height=\"419\" src=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sources.png\" alt=\"\" class=\"wp-image-557\" srcset=\"https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sources.png 1355w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sources-300x93.png 300w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sources-1024x317.png 1024w, https:\/\/vmoller.dk\/wp-content\/uploads\/2025\/09\/sources-768x237.png 768w\" sizes=\"auto, (max-width: 1355px) 100vw, 1355px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>After these changes, the Sync Updates task should finish in just a few minutes, allowing your VxRail upgrade to proceed without timeout errors.<\/p>\n\n\n\n<p>Finally, don\u2019t forget to re-enable your sources afterward (turn the blue ones back on; yellow can remain disabled).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you encounter a 504 Gateway Timeout error at 99% of the installation prerequisites, the issue may not actually be with VxRail itself. Instead, check the vCenter server task list and look for the vLCM task &#8220;Sync updates&#8221;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[20,6,8,7,59],"tags":[17,16,15,26,4,58],"class_list":["post-550","post","type-post","status-publish","format-standard","hentry","category-esxi","category-vmware","category-vsan","category-vsphere","category-vxrail","tag-patching","tag-updating","tag-vcsa","tag-vsan","tag-vsphere","tag-vxrail"],"_links":{"self":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/comments?post=550"}],"version-history":[{"count":9,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/550\/revisions"}],"predecessor-version":[{"id":566,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/posts\/550\/revisions\/566"}],"wp:attachment":[{"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/media?parent=550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/categories?post=550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vmoller.dk\/index.php\/wp-json\/wp\/v2\/tags?post=550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}