{"id":7079,"date":"2019-05-04T17:18:54","date_gmt":"2019-05-04T14:18:54","guid":{"rendered":"http:\/\/unihost.com\/help\/?p=7079"},"modified":"2023-09-22T16:26:21","modified_gmt":"2023-09-22T13:26:21","slug":"how-to-set-up-a-software-raid","status":"publish","type":"post","link":"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/","title":{"rendered":"How to set up a software RAID"},"content":{"rendered":"
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\u00a0<\/div>\n<\/div>\n<\/div>\n

\u00a0 \u00a0 \u00a0RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks. A classic RAID 1 mirrored pair contains two disks. The array will continue to operate so long as at least one member drive is operational.<\/span><\/p>\n

\"How<\/a><\/span><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

To create a\u00a0 software RAID array can be used the mdadm<\/strong> utility<\/span><\/p>\n

Install mdadm<\/span><\/h2>\n

Type the following command under\u00a0RHEL \/ CentOS \/ Fedora\u00a0Linux:<\/span><\/p>\n

# yum install mdadm<\/em><\/span><\/p>\n

Type the following command under Debian \/ Ubuntu Linux:<\/span><\/p>\n

# apt-get update && apt-get install mdadm<\/em><\/span><\/p>\n

Create the Array<\/strong><\/span><\/p>\n

#\u00a0mdadm –create \/dev\/md0 –level=raid1 –raid-devices=2 \/dev\/sdb \/dev\/sdc\u00a0<\/em><\/span><\/p>\n

You can check that your RAID was made successfully by executing the \u00a0command<\/span><\/p>\n

# cat \/proc\/mdstat\u00a0<\/em><\/span><\/p>\n

\u00a0<\/p>\n

Create and Mount the Filesystem<\/span><\/strong><\/p>\n

\u00a0<\/p>\n

Formatting a RAID drive using the MKFS command:<\/span><\/p>\n

# mkfs.ext4 -F \/dev\/md0<\/span><\/em><\/p>\n

Create a new folder for the RAID to mount to with the mkdir command.<\/span><\/p>\n

# mkdir -p \/mnt\/raid1<\/span><\/em><\/p>\n

Use the mount command and bind the RAID array to the new \/mnt\/raid1 folder.<\/span><\/p>\n

# mount \/dev\/md0 \/mnt\/raid1<\/span><\/em><\/p>\n

Add the new filesystem mount options to the \/etc\/fstab file for automatic mounting at boot:<\/span><\/p>\n

# echo ‘\/dev\/md0 \/mnt\/raid1 ext4 defaults,nofail,discard 0 0’ | sudo tee -a \/etc\/fstab<\/span><\/em><\/p>\n

Your RAID 1 array should now automatically be assembled and mounted each boot. If you need help with server administration, you can order the Server Administration<\/a> service from Unihost<\/span><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00a0 \u00a0 \u00a0 \u00a0RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks. A classic RAID 1 mirrored pair contains two disks. The array will continue to operate so long as at least one member drive is operational.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[158],"tags":[152,476],"class_list":["post-7079","post","type-post","status-publish","format-standard","hentry","category-dedicated-servers","tag-raid","tag-raid-create"],"yoast_head":"\nHow to set up a software RAID - Unihost.FAQ<\/title>\n<meta name=\"description\" content=\"A step by step tutorial, how to \u2714 Install mdadm \u2714 Create the Array \u2714 Create and Mount the Filesystem - Unihost.FAQ\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to set up a software RAID - Unihost.FAQ\" \/>\n<meta property=\"og:description\" content=\"A step by step tutorial, how to \u2714 Install mdadm \u2714 Create the Array \u2714 Create and Mount the Filesystem - Unihost.FAQ\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/\" \/>\n<meta property=\"og:site_name\" content=\"Unihost.FAQ\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/unihost\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-05-04T14:18:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-22T13:26:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/b7\/RAID_1.svg\/150px-RAID_1.svg.png\" \/>\n<meta name=\"author\" content=\"Unihost Support\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@unihost\" \/>\n<meta name=\"twitter:site\" content=\"@unihost\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Unihost Support\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/\"},\"author\":{\"name\":\"Unihost Support\",\"@id\":\"https:\/\/unihost.com\/help\/#\/schema\/person\/bb5ae95f38577c920e6a7507888b715a\"},\"headline\":\"How to set up a software RAID\",\"datePublished\":\"2019-05-04T14:18:54+00:00\",\"dateModified\":\"2023-09-22T13:26:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/\"},\"wordCount\":234,\"publisher\":{\"@id\":\"https:\/\/unihost.com\/help\/#organization\"},\"image\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-set-up-a-software-raid\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/b7\/RAID_1.svg\/150px-RAID_1.svg.png\",\"keywords\":[\"RAID\",\"raid create\"],\"articleSection\":[\"02. 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