{"id":605,"date":"2018-08-15T10:45:28","date_gmt":"2018-08-15T08:45:28","guid":{"rendered":"http:\/\/union31xh.free.fr\/?p=605"},"modified":"2018-08-15T11:41:30","modified_gmt":"2018-08-15T09:41:30","slug":"linux-supprimer-un-raid-1-logiciel","status":"publish","type":"post","link":"https:\/\/blogperso.union31.fr\/?p=605","title":{"rendered":"Linux : supprimer un Raid 1 logiciel"},"content":{"rendered":"<p>L&rsquo;objectif est de supprimer un RAID1 existant reposant sur 2 disques physiques (les donn\u00e9es ayant \u00e9t\u00e9 sauvegard\u00e9es pr\u00e9alablement).<\/p>\n<p>Etat de configuration des disques :<\/p>\n<ul>\n<li>lsblk<\/li>\n<\/ul>\n<pre>NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT\r\nsda 8:0 0 8G 0 disk\r\n\u251c\u2500sda1 8:1 0 1G 0 part \/boot\r\n\u2514\u2500sda2 8:2 0 7G 0 part\r\n \u251c\u2500centos-root 253:0 0 6,2G 0 lvm \/\r\n \u2514\u2500centos-swap 253:1 0 820M 0 lvm [SWAP]\r\n<strong>sdb 8:16 0 1010,9M 0 disk\r\n\u2514\u2500md0 9:0 0 1009,9M 0 raid1\r\nsdc 8:32 0 1G 0 disk\r\n\u2514\u2500md0 9:0 0 1009,9M 0 raid1<\/strong>\r\nsr0 11:0 1 1024M 0 rom<\/pre>\n<p>Le disque virtuel <strong>md0<\/strong> est mirror\u00e9 sur 2 disques physiques <strong>sdb<\/strong> et <strong>sdc<\/strong>.<\/p>\n<p>Arr\u00eat du mirroring sur md0 :<\/p>\n<ul>\n<li>mdadm &#8211;stop \/dev\/md0<\/li>\n<\/ul>\n<pre>mdadm: stopped \/dev\/md0<\/pre>\n<p>A ce stade le mirroring est arret\u00e9 : lsblk<\/p>\n<pre>NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT\r\nsda 8:0 0 8G 0 disk\r\n\u251c\u2500sda1 8:1 0 1G 0 part \/boot\r\n\u2514\u2500sda2 8:2 0 7G 0 part\r\n \u251c\u2500centos-root 253:0 0 6,2G 0 lvm \/\r\n \u2514\u2500centos-swap 253:1 0 820M 0 lvm [SWAP]\r\nsdb 8:16 0 1010,9M 0 disk\r\nsdc 8:32 0 1G 0 disk\r\nsr0 11:0 1 1024M 0 rom<\/pre>\n<p>Mais au red\u00e9marrage il va revenir. Donc avant il faut effacer les superblock sur les disques :<\/p>\n<ul>\n<li>mdadm &#8211;zero-superblock \/dev\/sdb<\/li>\n<li>mdadm &#8211;zero-superblock \/dev\/sdc<\/li>\n<\/ul>\n<pre>...Pas de messages en retour ...<\/pre>\n<p>Le raid 1 sur ces 2 disques n&rsquo;est plus actif ! Les disques peuvent r\u00e9utilis\u00e9s pour d&rsquo;autres finalit\u00e9s&#8230;<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\">* * *<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;objectif est de supprimer un RAID1 existant reposant sur 2 disques physiques (les donn\u00e9es ayant \u00e9t\u00e9 sauvegard\u00e9es pr\u00e9alablement). Etat de configuration des disques : lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 8G 0 disk \u251c\u2500sda1 8:1<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-605","post","type-post","status-publish","format-standard","hentry","category-_systeme"],"_links":{"self":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=605"}],"version-history":[{"count":9,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/605\/revisions"}],"predecessor-version":[{"id":614,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/605\/revisions\/614"}],"wp:attachment":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}