{"id":6440,"date":"2025-06-10T16:09:50","date_gmt":"2025-06-10T14:09:50","guid":{"rendered":"http:\/\/rootfan.com\/?p=6440"},"modified":"2025-06-11T16:04:34","modified_gmt":"2025-06-11T14:04:34","slug":"physicaldisk-celldisk-griddisk-sur-exadata","status":"publish","type":"post","link":"https:\/\/rootfan.com\/fr\/physicaldisk-celldisk-griddisk-on-exadata\/","title":{"rendered":"PhysicalDisk \u2192 CellDisk \u2192 GridDisk sur Exadata"},"content":{"rendered":"<p>Voici une explication claire de la relation entre <strong>disques physiques<\/strong>, <strong>disques cellulaires<\/strong>et <strong>disques \u00e0 grille<\/strong> dans Oracle Exadata :<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd01 Aper\u00e7u des relations<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code\" data-no-translation=\"\"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nPhysicalDisk \u2192 CellDisk \u2192 GridDisk\n\n<\/pre><\/div>\n\n\n<p>Consid\u00e9rez-le comme un <strong>abstraction de stockage en couches<\/strong>:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Couche<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td><strong>Disque physique<\/strong><\/td><td>Le disque mat\u00e9riel r\u00e9el (HDD ou Flash) \u00e0 l'int\u00e9rieur du serveur de stockage Exadata.<\/td><\/tr><tr><td><strong>CellDisk<\/strong><\/td><td>Une partition du PhysicalDisk cr\u00e9\u00e9e et g\u00e9r\u00e9e par le logiciel Exadata.<\/td><\/tr><tr><td><strong>GridDisk<\/strong><\/td><td>Une autre tranche logique d'un CellDisk, expos\u00e9e \u00e0 ASM en tant que stockage utilisable.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<!--more-->\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udce6 1. Disque physique<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il s'agit de la <strong>mat\u00e9riel r\u00e9el<\/strong> \u00e0 l'int\u00e9rieur du serveur de stockage.<\/li>\n\n\n\n<li>Types : Haute capacit\u00e9 (HC), Haute performance (HP) ou Flash.<\/li>\n\n\n\n<li>Vous pouvez les consulter avec : <code>cellcli&gt; list physicaldisk<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\uddf1 2. CellDisk<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cr\u00e9\u00e9e <strong>au-dessus des PhysicalDisks<\/strong> par le syst\u00e8me Exadata <code>services cellulaires<\/code>.<\/li>\n\n\n\n<li>Repr\u00e9sente un <strong>r\u00e9gion g\u00e9r\u00e9e<\/strong> du disque physique.<\/li>\n\n\n\n<li>Cr\u00e9\u00e9 automatiquement lors du d\u00e9ploiement de la cellule Exadata.<\/li>\n\n\n\n<li>Il n'est pas directement utilis\u00e9 par ASM ou les bases de donn\u00e9es.<\/li>\n\n\n\n<li>Voir avec : <code>cellcli&gt; list celldisk<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde9 3. GridDisk<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cr\u00e9\u00e9 \u00e0 partir de CellDisks<\/strong>.<\/li>\n\n\n\n<li>Il s'agit des unit\u00e9s r\u00e9elles pr\u00e9sent\u00e9es aux <strong>ASM (gestion automatique du stockage)<\/strong>.<\/li>\n\n\n\n<li>Les GridDisks sont ce que la base de donn\u00e9es voit et utilise pour le stockage.<\/li>\n\n\n\n<li>Voir avec : <code>cellcli&gt; list griddisk<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcca Exemple du monde r\u00e9el<\/h2>\n\n\n\n<p>Imaginez un disque de 1,2 To :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Disque physique<\/strong>: Disque mat\u00e9riel de 1,2 To.<\/li>\n\n\n\n<li><strong>CellDisk<\/strong>: Unit\u00e9 logique de 1,2 To g\u00e9r\u00e9e par Exadata.<\/li>\n\n\n\n<li><strong>GridDisk<\/strong>: Ce 1,2 To peut \u00eatre d\u00e9coup\u00e9 en tranches :\n<ul class=\"wp-block-list\">\n<li>512GB pour DATA<\/li>\n\n\n\n<li>512GB pour RECO<\/li>\n\n\n\n<li>176 Go restants pour FLASH ou r\u00e9serv\u00e9s<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Ainsi, un seul disque physique peut \u00eatre \u00e0 l'origine de.. :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Un <strong>CellDisk<\/strong><\/li>\n\n\n\n<li>Multiple <strong>GridDisks<\/strong> (par exemple, <code>DATA_CD_01<\/code>, <code>RECO_CD_01<\/code>etc.)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udca1 Tableau r\u00e9capitulatif<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Composant<\/th><th>Cr\u00e9\u00e9 le<\/th><th>Utilis\u00e9 par<\/th><th>Objectif<\/th><\/tr><\/thead><tbody><tr><td>Disque physique<\/td><td>Mat\u00e9riel<\/td><td>Exadata<\/td><td>Rangement de la quincaillerie de base<\/td><\/tr><tr><td>CellDisk<\/td><td>Disque physique<\/td><td>CellSrv<\/td><td>Unit\u00e9 logique pour le logiciel cellulaire<\/td><\/tr><tr><td>GridDisk<\/td><td>CellDisk<\/td><td>ASM<\/td><td>Pr\u00e9sent\u00e9s sous forme de LUN \u00e0 ASM\/base de donn\u00e9es<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Voici une explication claire de la relation entre les disques physiques, les disques cellulaires et les disques de grille dans Oracle Exadata : \ud83d\udd01 Vue d'ensemble des relations Pensez-y comme une abstraction de stockage en couches : Couche Description PhysicalDisk Le disque mat\u00e9riel r\u00e9el (HDD ou Flash) \u00e0 l'int\u00e9rieur du serveur de stockage Exadata CellDisk Une partition du PhysicalDisk cr\u00e9\u00e9e et g\u00e9r\u00e9e par Exadata.... <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/rootfan.com\/fr\/physicaldisk-celldisk-griddisk-on-exadata\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de \" PhysicalDisk \u2192 CellDisk \u2192 GridDisk sur Exadata \"<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":6443,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_focus_keyword":"","rank_math_title":"","rank_math_description":"Understand the relationship between PhysicalDisk, CellDisk, and GridDisk on Oracle Exadata. Learn about this layered storage abstraction.","rank_math_robots":"","rank_math_og_title":"","rank_math_og_description":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[116],"tags":[123],"class_list":["post-6440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exadata","tag-physical-storage"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/rootfan.com\/wp-content\/uploads\/mountains-clouds-forest-fog.jpg?fit=1880%2C1175&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/posts\/6440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/comments?post=6440"}],"version-history":[{"count":4,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/posts\/6440\/revisions"}],"predecessor-version":[{"id":6445,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/posts\/6440\/revisions\/6445"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/media\/6443"}],"wp:attachment":[{"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/media?parent=6440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/categories?post=6440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rootfan.com\/fr\/wp-json\/wp\/v2\/tags?post=6440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}