Sometimes, you need to add 3rd disk to a VM to increase disk space and use only a portion of it. For example, a VM is shared by a number of users. You’ve run out of disk space. You add 1TB HDD and allocate 250GB to a new user, leaving the rest of the disk space to be used at later stage. Below are the steps that need to be performed at the OS level to make sure the allocated space is accessible.<\/p>\n
Assuming that you’ve added the 1TB HDD as a 3rd Hard Drive to the VM and rebooted the server. I’ve assumed you’re using VMware Vcenter, however, it should still work for Virtual Box. The steps are tested in Ubuntu 14.04 and RHEL 6.<\/p>\n
Note:<\/strong> Please test configs in DEV\/UAT before jumping into Production machines. And please back up before attempting this change. I’m not responsible for lost data.<\/em><\/p>\n Now, we need to create a new partition and add 250G as allocated space.<\/p>\n First cylinder (1-2610, default 1): \"enter\" Hex code (type L to list codes): 8e Command (m for help): w Calling ioctl() to re-read partition table. Once, a drive is assigned, we need to perform the steps in LVM to add a logical volume and mount it to an accessible location Format the volume to Ext4 (assuming you’re using ext4 as the filesystem) To make the mount permanent you need to edit Sometimes, you need to add 3rd disk to a VM to increase disk space and use only a portion of it. For example, a VM is shared by a number of users. You’ve run out of disk space. You add 1TB HDD and allocate 250GB to a new user, leaving the rest of the disk […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[516,1],"tags":[563,217],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"popular_posts_img":false},"uagb_author_info":{"display_name":"Editor","author_link":"https:\/\/tuxtrix.com\/author\/ttx\/"},"uagb_comment_info":0,"uagb_excerpt":"Sometimes, you need to add 3rd disk to a VM to increase disk space and use only a portion of it. For example, a VM is shared by a number of users. You’ve run out of disk space. You add 1TB HDD and allocate 250GB to a new user, leaving the rest of the disk…","_links":{"self":[{"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/posts\/1420"}],"collection":[{"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/comments?post=1420"}],"version-history":[{"count":6,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/posts\/1420\/revisions"}],"predecessor-version":[{"id":1426,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/posts\/1420\/revisions\/1426"}],"wp:attachment":[{"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/media?parent=1420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/categories?post=1420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tuxtrix.com\/wp-json\/wp\/v2\/tags?post=1420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}fdisk \/dev\/sdc
\nCommand (m for help): n
\nCommand action
\ne extended
\np primary partition (1-4)
\np
\nPartition number (1-4): 1<\/p>\n
\nUsing default value 1
\nLast cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610): +250G
\nUsing default value 2610
\nCommand (m for help): t
\nSelected partition 1<\/p>\n
\nChanged system type of partition 1 to 8e (Linux LVM)<\/p>\n
\nThe partition table has been altered!<\/p>\n
\nSyncing disks.<\/code><\/p>\n
\n
\n~# pvcreate \/dev\/sdc1
\nPhysical volume \"\/dev\/sdc1\" successfully created
\n<\/code>
\nExtend the vg_data volume group<\/p>\n~# vgextend vg_data \/dev\/sdc1
\nVolume group \"vg_data\" successfully extended
\n<\/code>
\nCreate the logical volume<\/p>\n:~# lvcreate -L 250G -n NewVolume vg_data<\/code><\/p>\n
\n:~# mkfs.ext4 \/dev\/vg_data\/NewVolume
\n<\/code>
\nMount the drive in \/opt
\n
\nmkdir \/opt\/NewVolume
\nmount \/dev\/vg_data\/NewVolume \/opt\/NewVolume<\/code><\/p>\n\/etc\/fstab<\/code> and add the mount information<\/p>\n","protected":false},"excerpt":{"rendered":"