{"id":2526,"date":"2023-05-10T14:48:52","date_gmt":"2023-05-10T22:48:52","guid":{"rendered":"https:\/\/jetstreamsoft.com\/portal\/?post_type=ht_kb&#038;p=2526"},"modified":"2024-08-29T09:58:35","modified_gmt":"2024-08-29T17:58:35","slug":"protected-domain-log-space-is-low","status":"publish","type":"ht_kb","link":"https:\/\/jetstreamsoft.com\/portal\/jetstream-knowledge-base\/protected-domain-log-space-is-low\/","title":{"rendered":"Protected Domain Log Space is Low"},"content":{"rendered":"\n<p class=\"is-style-info wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon\">This article applies to all JSDR software versions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Issue<\/h2>\n\n\n\n<p class=\"\">The following alert message may be displayed if adequate space is not available in the <a href=\"https:\/\/jetstreamsoft.com\/portal\/jetstream-knowledge-base\/what-is-replication-log-volume\/\" data-type=\"ht_kb\" data-id=\"3781\">replication log volume<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"389\" height=\"112\" src=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/a-3.png\" alt=\"\" class=\"wp-image-2527\" srcset=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/a-3.png 389w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/a-3-300x86.png 300w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/a-3-50x14.png 50w\" sizes=\"(max-width: 389px) 100vw, 389px\" \/><figcaption class=\"wp-element-caption\"><em>Low replication log space warning.<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Details of a Replication Log Volume<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Each <a href=\"https:\/\/jetstreamsoft.com\/portal\/jetstream-knowledge-base\/create-a-protected-domain\/\" data-type=\"ht_kb\" data-id=\"946\">protected domain<\/a> uses a single replication log for all the VMs belonging to it.<\/li>\n\n\n\n<li class=\"\">The replication log volume consists of multiple sections (described below):<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"950\" height=\"230\" src=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/b-5.png\" alt=\"\" class=\"wp-image-2528\" srcset=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/b-5.png 950w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/b-5-300x73.png 300w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/b-5-768x186.png 768w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/05\/b-5-50x12.png 50w\" sizes=\"(max-width: 950px) 100vw, 950px\" \/><figcaption class=\"wp-element-caption\"><em>Example of a replication log volume.<\/em><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Replication Log Section<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Keeps a record of data being replicated to the object store.<\/li>\n\n\n\n<li class=\"\">I\/O coming into the DRVA is written to the object store.<\/li>\n\n\n\n<li class=\"\">If there is a network bottleneck the I\/O will get written to the replication log. <br>(It acts as a temporary placeholder.)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Metadata Section<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Contains metadata of the VMs including garage collection (DB).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Free Space Section<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">When metadata becomes full, if there is available free space in the replication log volume, the management server will automatically re-assign some of the free space to metadata.<\/li>\n<\/ul>\n\n\n\n<p class=\"is-style-danger wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon\">The \u201clog space low\u201d message can appear when the replication log section is full or >90% for a certain period of time. This message will stop appearing once the space is freed up.<\/p>\n\n\n\n<p class=\"is-style-alert wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon\"><strong>Best Practices:<\/strong><br>* The replication log section should be sized to 64GB per protected domain (regardless of the number of VMs being protected).<br>* The number of vDisks protected should not exceed 500 per DRVA.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Example<\/h2>\n\n\n\n<p class=\"\">If the replication log has been over provisioned, the <a href=\"https:\/\/jetstreamsoft.com\/portal\/jetstream-knowledge-base\/resize-a-replication-log-section\/\">replication log section can be resized<\/a> to release free space on the replication log volume (RLV).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"958\" height=\"337\" src=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/12\/image.png\" alt=\"\" class=\"wp-image-2934\" srcset=\"https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/12\/image.png 958w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/12\/image-300x106.png 300w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/12\/image-768x270.png 768w, https:\/\/jetstreamsoft.com\/portal\/wp-content\/uploads\/2023\/12\/image-50x18.png 50w\" sizes=\"(max-width: 958px) 100vw, 958px\" \/><\/figure>\n\n\n\n<p class=\"is-style-success wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon\">Starting with JSDR version 4.2, if the replication log volume becomes full and more space is required, it is possible to create additional free space on the replication log volume by simply increasing the disk size.<br>1. Shut down the DRVA.<br>2. Increase the disk size from <strong><em>VM \u2192 Edit Settings<\/em><\/strong>.<br>3. Power the VM back on.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Issue The following alert message may be displayed if adequate space is not available in the replication log volume. Details of a Replication Log Volume Replication Log Section Metadata Section Free Space Section Example If the replication log has been over provisioned, the replication log section can be resized to release free space on the [&hellip;]<\/p>\n","protected":false},"author":1,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"ht-kb-category":[92],"ht-kb-tag":[213],"class_list":["post-2526","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-troubleshooting","ht_kb_tag-protected-domain"],"_links":{"self":[{"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb\/2526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/comments?post=2526"}],"version-history":[{"count":1,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb\/2526\/revisions"}],"predecessor-version":[{"id":5560,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb\/2526\/revisions\/5560"}],"wp:attachment":[{"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/media?parent=2526"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb-category?post=2526"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/jetstreamsoft.com\/portal\/wp-json\/wp\/v2\/ht-kb-tag?post=2526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}