New server created with 20GB Drive.<\/p>\n
\n# fdisk -l\n\nDisk \/dev\/xvda: 21.5 GB, 21474836480 bytes\n255 heads, 63 sectors\/track, 2610 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00028fed\n\n Device Boot Start End Blocks Id System\n\/dev\/xvda1 * 1 66 524288 83 Linux\nPartition 1 does not end on cylinder boundary.\n\/dev\/xvda2 66 2611 20446208 8e Linux LVM\n\nDisk \/dev\/mapper\/centos-swap: 1073 MB, 1073741824 bytes\n255 heads, 63 sectors\/track, 130 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n\nDisk \/dev\/mapper\/centos-root: 19.9 GB, 19860029440 bytes\n255 heads, 63 sectors\/track, 2414 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n<\/pre>\n\n\n# lvs\n LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert\n root centos -wi-ao---- 18.50g\n swap centos -wi-ao---- 1.00g\n\n<\/pre>\nCheck Physical Volumes<\/p>\n
\n# pvs\n PV VG Fmt Attr PSize PFree\n \/dev\/xvda2 centos lvm2 a-- 19.50g 0\n<\/pre>\nNow I upgrade the cloud server
\nto
\n1024 MB RAM, 1 Core, 40 GB Disk<\/p>\nAfter upgrade…<\/p>\n
\n# fdisk -l\n\nDisk \/dev\/xvda: 40.8 GB, 40802189312 bytes\n255 heads, 63 sectors\/track, 4960 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00028fed\n\n Device Boot Start End Blocks Id System\n\/dev\/xvda1 * 1 66 524288 83 Linux\nPartition 1 does not end on cylinder boundary.\n\/dev\/xvda2 66 2611 20446208 8e Linux LVM\n\nDisk \/dev\/mapper\/centos-swap: 1073 MB, 1073741824 bytes\n255 heads, 63 sectors\/track, 130 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n\nDisk \/dev\/mapper\/centos-root: 19.9 GB, 19860029440 bytes\n255 heads, 63 sectors\/track, 2414 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n<\/pre>\n\n# lvs\n LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert\n root centos -wi-ao---- 18.50g\n swap centos -wi-ao---- 1.00g\n<\/pre>\n\n# pvs\n PV VG Fmt Attr PSize PFree\n \/dev\/xvda2 centos lvm2 a-- 19.50g 0\n<\/pre>\nCreate a new partition (n). Make it primary (p). The start and end should be the defaults provided by fdisk.<\/p>\n
\n# fdisk \/dev\/xvda\n\nWARNING: DOS-compatible mode is deprecated. It's strongly recommended to\n switch off the mode (command 'c') and change display units to\n sectors (command 'u').\n\nCommand (m for help): p\n\nDisk \/dev\/xvda: 40.8 GB, 40802189312 bytes\n255 heads, 63 sectors\/track, 4960 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00028fed\n\n Device Boot Start End Blocks Id System\n\/dev\/xvda1 * 1 66 524288 83 Linux\nPartition 1 does not end on cylinder boundary.\n\/dev\/xvda2 66 2611 20446208 8e Linux LVM\n\nCommand (m for help): n\nCommand action\n e extended\n p primary partition (1-4)\np\nPartition number (1-4): 3\nFirst cylinder (2611-4960, default 2611):\nUsing default value 2611\nLast cylinder, +cylinders or +size{K,M,G} (2611-4960, default 4960):\nUsing default value 4960\n\nCommand (m for help): w\nThe partition table has been altered!\n\nCalling ioctl() to re-read partition table.\n\nWARNING: Re-reading the partition table failed with error 16: Device or resource busy.\nThe kernel still uses the old table. The new table will be used at\nthe next reboot or after you run partprobe(8) or kpartx(8)\n<\/pre>\nReboot the VM so the kernel picks up the partition changes.<\/p>\n
\n# shutdown -r now\n<\/pre>\nCheck for the new partition<\/p>\n
\n# fdisk -l\n\nDisk \/dev\/xvda: 40.8 GB, 40802189312 bytes\n255 heads, 63 sectors\/track, 4960 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00028fed\n\n Device Boot Start End Blocks Id System\n\/dev\/xvda1 * 1 66 524288 83 Linux\nPartition 1 does not end on cylinder boundary.\n\/dev\/xvda2 66 2611 20446208 8e Linux LVM\n\/dev\/xvda3 2611 4960 18869680 83 Linux\n\nDisk \/dev\/mapper\/centos-swap: 1073 MB, 1073741824 bytes\n255 heads, 63 sectors\/track, 130 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n\nDisk \/dev\/mapper\/centos-root: 19.9 GB, 19860029440 bytes\n255 heads, 63 sectors\/track, 2414 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n<\/pre>\nRun “pvcreate \/dev\/xvda3” to make \/dev\/xvda3 a LVM partition.<\/p>\n
\n# pvcreate \/dev\/xvda3\n Physical volume "\/dev\/xvda3" successfully created\n<\/pre>\nCheck for the name<\/p>\n
\n# vgs\n VG #PV #LV #SN Attr VSize VFree\n centos 1 2 0 wz--n- 19.50g 0\n<\/pre>\nRun “vgextend centos \/dev\/xvda3” to add \/dev\/xvda3 to the centos volume group.<\/p>\n
\n# vgextend centos \/dev\/xvda3\n Volume group "centos" successfully extended\n<\/pre>\nCheck again…<\/p>\n
\n\n# lvs\n LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert\n root centos -wi-ao---- 18.50g\n swap centos -wi-ao---- 1.00g\n\n<\/pre>\nRoot “lvresize -r -l +100%FREE centos\/root” to resize the \/ partition.<\/p>\n
\n# lvresize -r -l +100%FREE centos\/root\n Size of logical volume centos\/root changed from 18.50 GiB (4735 extents) to 36.49 GiB (9341 extents).\n Logical volume root successfully resized\nresize2fs 1.41.12 (17-May-2010)\nFilesystem at \/dev\/mapper\/centos-root is mounted on \/; on-line resizing required\nold desc_blocks = 2, new_desc_blocks = 3\nPerforming an on-line resize of \/dev\/mapper\/centos-root to 9565184 (4k) blocks.\nThe filesystem on \/dev\/mapper\/centos-root is now 9565184 blocks long.\n<\/pre>\nRun “df -H”. You should now see 30+ GB size on the \/ partition.<\/p>\n
\n# df -h\nFilesystem Size Used Avail Use% Mounted on\n\/dev\/mapper\/centos-root\n 36G 928M 34G 3% \/\ntmpfs 496M 0 496M 0% \/dev\/shm\n\/dev\/xvda1 504M 62M 417M 13% \/boot\n<\/pre>\nAnd fdisk again<\/p>\n
\n# fdisk -l\n\nDisk \/dev\/xvda: 40.8 GB, 40802189312 bytes\n255 heads, 63 sectors\/track, 4960 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00028fed\n\n Device Boot Start End Blocks Id System\n\/dev\/xvda1 * 1 66 524288 83 Linux\nPartition 1 does not end on cylinder boundary.\n\/dev\/xvda2 66 2611 20446208 8e Linux LVM\n\/dev\/xvda3 2611 4960 18869680 83 Linux\n\nDisk \/dev\/mapper\/centos-swap: 1073 MB, 1073741824 bytes\n255 heads, 63 sectors\/track, 130 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n\nDisk \/dev\/mapper\/centos-root: 39.2 GB, 39178993664 bytes\n255 heads, 63 sectors\/track, 4763 cylinders\nUnits = cylinders of 16065 * 512 = 8225280 bytes\nSector size (logical\/physical): 512 bytes \/ 512 bytes\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\nDisk identifier: 0x00000000\n\n<\/pre>\n","protected":false},"excerpt":{"rendered":"New server created with 20GB Drive. # fdisk -l Disk \/dev\/xvda: 21.5 GB, 21474836480 bytes 255 heads, 63 sectors\/track, 2610 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical\/physical): 512 bytes \/ 512 bytes I\/O size (minimum\/optimal): 512 bytes \/ 512 bytes Disk identifier: 0x00028fed Device Boot Start End Blocks … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-2696","post","type-post","status-publish","format-standard","hentry","category-cloud"],"_links":{"self":[{"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/posts\/2696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/comments?post=2696"}],"version-history":[{"count":0,"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/posts\/2696\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/media?parent=2696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/categories?post=2696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.qbytes.cloud\/index.php\/wp-json\/wp\/v2\/tags?post=2696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}