{"id":1021,"date":"2015-09-14T09:58:28","date_gmt":"2015-09-14T09:58:28","guid":{"rendered":"http:\/\/10sa.com\/sql_stories\/?p=1021"},"modified":"2015-09-14T10:00:41","modified_gmt":"2015-09-14T10:00:41","slug":"nvme-software-raid-disappears-after-reboot","status":"publish","type":"post","link":"http:\/\/10sa.com\/sql_stories\/?p=1021","title":{"rendered":"NVMe, software raid disappears after reboot"},"content":{"rendered":"<p># Annoying&#8230;<\/p>\n<pre lang=\"bash\">\r\nmdadm --create \/dev\/md3 --level=1 --raid-disks=2  \/dev\/nvme0n1p3 \/dev\/nvme1n1p3\r\n[root@db7 ~]# parted \/dev\/nvme0n1 p \r\nModel: Unknown (unknown)\r\nDisk \/dev\/nvme0n1: 400GB\r\nSector size (logical\/physical): 512B\/512B\r\nPartition Table: gpt\r\nDisk Flags: \r\n\r\nNumber  Start   End     Size    File system  Name     Flags\r\n 1      1049kB  40.0GB  40.0GB               primary  raid\r\n 2      40.0GB  80.0GB  40.0GB               mysql    raid\r\n 3      80.0GB  84.0GB  4000MB               xd       raid\r\n<\/pre>\n<pre lang=\"bash\">\r\nreboot\r\n# raid array disapeared\r\nmdadm  --assemble --scan\r\n# raid array apears\r\n<\/pre>\n<pre lang=\"bash\">\r\n[root@db7 ~]# cat \/etc\/mdadm.conf \r\nMAILADDR root\r\nDEV \/dev\/nvme[0-9]n[0-9]p[0-9]\r\nARRAY \/dev\/md3 metadata=1.2 name=db7.lan.psmm.pl:3 UUID=d308cda3:43619396:d7992342:360fe8b7\r\nAdded to \r\nvi \/usr\/lib\/systemd\/system\/mdmonitor.service\r\nExecStartPre=-\/bin\/sudo \/sbin\/mdadm --assemble --scan --verbose\r\n# Disgrace!\r\nSep  1 17:41:59 db7 sudo: mdadm: cannot open device \/dev\/nvme0n1p3: Permission denied\r\nSep  1 17:41:59 db7 sudo: mdadm: cannot open device \/dev\/nvme0n1p2: Permission denied\r\n<\/pre>\n<p>Solution:<br \/>\nSELINUX=disabled<\/p>\n<p>https:\/\/bugzilla.redhat.com\/show_bug.cgi?id=1230989<\/p>\n","protected":false},"excerpt":{"rendered":"<p># Annoying&#8230; mdadm &#8211;create \/dev\/md3 &#8211;level=1 &#8211;raid-disks=2 \/dev\/nvme0n1p3 \/dev\/nvme1n1p3 [root@db7 ~]# parted \/dev\/nvme0n1 p Model: Unknown (unknown) Disk \/dev\/nvme0n1: 400GB Sector size (logical\/physical): 512B\/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 1049kB 40.0GB 40.0GB primary raid 2 40.0GB 80.0GB 40.0GB mysql raid 3 80.0GB 84.0GB 4000MB xd raid [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18,1],"tags":[],"_links":{"self":[{"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/posts\/1021"}],"collection":[{"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1021"}],"version-history":[{"count":6,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/posts\/1021\/revisions"}],"predecessor-version":[{"id":1048,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=\/wp\/v2\/posts\/1021\/revisions\/1048"}],"wp:attachment":[{"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1021"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/10sa.com\/sql_stories\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}