{"id":67592,"date":"2021-07-25T21:30:08","date_gmt":"2021-07-26T01:30:08","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/disk-partition-logical-volume-lvm-management-related-commands-in-centos-redhat-linux-devops-rhcsa\/"},"modified":"2021-07-25T21:30:08","modified_gmt":"2021-07-26T01:30:08","slug":"disk-partition-logical-volume-lvm-management-related-commands-in-centos-redhat-linux-devops-rhcsa","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=67592","title":{"rendered":"Disk\/Partition\/Logical Volume (LVM) Management related commands in Centos\/Redhat Linux #DevOps #RHCSA"},"content":{"rendered":"

echo “Dec 22nd 2017”
\n321 pvs
\n322 output
\n323 PV VG Fmt Attr PSize PFree
\n324 \/dev\/sda2 cl lvm2 a– 19.00g 0
\n325 pvs
\n326 vgs
\n327 lsblk
\n328 vgdisplay
\n329 vgdisplay | grep “PE Size”
\n330 PE Size 4.00 MiB
\n331 vgdisplay > vgdisplay20171222.txt
\n332 vgdisplay | grep ‘PE Size’> vgdisplay20171222.txt
\n333 lvs
\n334 lvs > lvs20171222.txt
\n335 lvs
\n336 lvdisplay vg00
\n337 lvdisplay cl
\n338 lvdisplay cl > lvdisplaycl.txt
\n339 lvdisplay \/dev\/cl
\n340 lvdisplay \/dev\/cl\/root
\n341 lsblk
\n342 lvdisplay \/dev\/cl\/swap
\n343 lvdisplay \/dev\/cl\/swap > swaplv.txt
\n344 pvck
\n345 pvck \/dev\/sda
\n346 lsblk
\n347 pvck \/dev\/sda2
\n348 pvs
\n349 pvs > pvsoutput
\n350 pvck \/dev\/sda2
\n351 echo “physical volume related commands – just the terms”
\n352 pvck
\n353 pvcreate
\n354 pvdisplay
\n355 pvresize
\n356 pvmove
\n357 pvremove
\n358 pvs
\n359 pvscan
\n360 echo “volume group related commands”
\n361 echo “you create volume groups out of physical volumes”
\n362 vgch
\n363 vgck-> checks integrity of volume groups
\n364 vgck
\n365 vgcreate : you provide the physical volumes as parameters
\n366 vgcreate
\n367 vgdisplay
\n368 vgextend
\n369 vgextend -> you can add additional physical volumes to a volume group
\n370 vgreduce
\n371 vgreduce : reduce size of a volume group
\n372 use -L target-size as parameters for vgreduce along with vg name or -L -100m where 100m is the amount to reduce. not the final size
\n373 vgrename
\n374 vgremove
\n375 vgremove -> removes a volume group
\n376 vgs
\n377 vgs -> list volume groups
\n378 vgscan -> scan system find volume groups
\n379 vgscan
\n380 vgscan \/dev\/sda2
\n381 vgscan
\n382 echo “Logical Volume related commands”
\n383 lvcreate
\n384 lvdisplay
\n385 lvextend
\n386 lvreduce
\n387 lvremove
\n388 lvrename
\n389 lvresize
\n390 lvs
\n391 lvscan
\n392 lvm
\n393 lvscan
\n394 lvm
\n395 lsblk | grep vd
\n396 lsblk | grep sd
\n397 lvmdiskscan
\n398 lvscan
\n399 lvmdiskscan > outputoflvmdiskscan.txt
\n400 lsblk
\n401 parted \/dev\/sdc mkpart primary 1 100m
\n402 parted \/dev\/sdc mklabel msdos
\n403 parted \/dev\/sdc mkpart primary 1 201m
\n404 parted \/dev\/sdc print
\n405 pvcreate \/dev\/sdb \/dev\/sdc1 -v
\n406 pvcreate \/dev\/sdb \/dev\/sdc1 -v > outputofpvcreate
\n407 lsblk
\n408 vgcreate vg01 -s 16 \/dev\/sdb \/dev\/sdc1 -v
\n409 cat pvsoutput
\n410 cat outputofpvcreate
\n411 vgs vg01
\n412 vgscan
\n413 vgdisplay
\n414 vgdisplay -v
\n415 vgdisplay -v vg01
\n416 pvs
\n417 pvscan
\n418 pvdisplay \/dev\/sdb
\n419 pvdisplay \/dev\/sdb > pvdisplaydevsdb
\n420 pvdisplay \/dev\/vdc1
\n421 pvdisplay \/dev\/sdc1
\n422 lvcreate -n lvol0 -L 600MB vg01 -v
\n423 lvcreate -n oravol -L 1.3g vg01 -v
\n424 lvs
\n425 lvscan
\n426 lvdisplay
\n427 lvdisplay \/dev\/vg01\/lvol0
\n428 lvdisplay \/dev\/vg01\/oravol
\n429 vgextend vg01 \/dev\/sdd -v [need to initialize with pvcreate]
\n430 pvcreate \/dev\/sdd
\n431 vgextend vg01 \/dev\/sdd -v
\n432 vgs vg01
\n433 vgscan
\n434 lvextend \/dev\/vg01\/lvol0 -L 1g -v
\n435 lvextend \/dev\/vg01\/oravol -L 2g -v
\n436 lvdisplay oravol0
\n437 lvdisplay \/dev\/vg01\/oravol
\n438 vgdisplay -v vg01
\n439 lvrename \/dev\/vg01\/lvol0 lvolnew -v
\n440 lvs \/dev\/vg01\/lvolnew
\n441 lvs
\n442 lvs | grep lvolnew
\n443 lvreduce \/dev\/vg01\/lvolnew -L 800m -v
\n444 lvresize \/dev\/vg01\/lvolnew -L -100m -v
\n445 lvremove \/dev\/vg01\/lvolnew
\n446 lvremove -f \/dev\/vg01\/oravol
\n447 vgdisplay vg01 | grep ‘Cur LV’
\n448 vgreduce vg01 \/dev\/sdb \/dev\/sdc1
\n449 vgs
\n450 vgs vg01
\n451 vgscan
\n452 lsblk
\n453 vgdisplay vg01
\n454 vgdisplay vg01 -v
\n455 vgremove vg01
\n456 vgdisplay vg01 -v
\n457 pvremove \/dev\/sdb \/dev\/sdc1 \/dev\/sdd
\n458 exit
\n459 history From: http:\/\/sitestree.com\/?p=12008
Categories:DevOps, RHCSA
Tags:
Post Data:2017-12-22 11:56:05<\/p>\n

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echo “Dec 22nd 2017” 321 pvs 322 output 323 PV VG Fmt Attr PSize PFree 324 \/dev\/sda2 cl lvm2 a– 19.00g 0 325 pvs 326 vgs 327 lsblk 328 vgdisplay 329 vgdisplay | grep “PE Size” 330 PE Size 4.00 MiB 331 vgdisplay > vgdisplay20171222.txt 332 vgdisplay | grep ‘PE Size’> vgdisplay20171222.txt 333 lvs 334 … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-67592","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":67590,"url":"http:\/\/bangla.sitestree.com\/?p=67590","url_meta":{"origin":67592,"position":0},"title":"Redhat\/CentOS Linux and Disk\/Volume Management. LVM, parted, gdisk, vgcreate, lvcreate and similar #DevOps #RHCSA","author":"Author-Check- Article-or-Video","date":"July 25, 2021","format":false,"excerpt":"Misc related commands from history [Redhat\/CentOS Linux and Disk\/Volume Management. LVM, parted, gdisk, vgcreate, lvcreate and similar] \u00a0 fdisk \/dev\/sdb 93 parted 94 parted \/dev\/sdb 96 parted \/dev\/sdb print 97 vi \/etc\/fstab 98 parted \/dev\/sdb 99 vi \/etc\/fstab 100 parted \/dev\/sdb 101 parted \/dev\/sdb print 102 gdisk \/dev\/sdc 103 gdisk\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14016,"url":"http:\/\/bangla.sitestree.com\/?p=14016","url_meta":{"origin":67592,"position":1},"title":"Linux: LVM : Logical Volume Manager : Multiple Hard Disk and Partition and Volume Management","author":"Sayed","date":"December 12, 2017","format":false,"excerpt":"On RedHat\/Centos Linux - LVM experiments Concepts to understand: Physical Volume: Physical Hard Drive or\u00a0 Partitions in Physical Hard Drive Physical Extent:\u00a0 One unit of space usually 4 MB. 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Software Developers and System\/Network Administrators or DevOps\u00a0 (or wanna be) \/ and \/boot are the default Linux file systems you can also configure \/home, \/opt, \/var, \/tmp,\u2026","rel":"","context":"In "\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix"","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":22421,"url":"http:\/\/bangla.sitestree.com\/?p=22421","url_meta":{"origin":67592,"position":3},"title":"Linux Commands Used: AWS or not #Root #By Sayed Ahmed #RHCSA","author":"Author-Check- Article-or-Video","date":"March 14, 2021","format":false,"excerpt":"Remove MySQL Completely: sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-core-5.5 mysql-client-core-5.5 sudo rm -rf \/etc\/mysql \/var\/lib\/mysql sudo apt-get autoremove sudo apt-get autoclean Did not try but might work as well [ sudo apt-get remove --purge mysql-server mysql-client mysql-common sudo apt-get autoremove sudo apt-get autoclean sudo rm -rf \/var\/lib\/mysql sudo rm\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":14031,"url":"http:\/\/bangla.sitestree.com\/?p=14031","url_meta":{"origin":67592,"position":4},"title":"Network Interface, Network Clients related Linux\/Redhat\/CentOS commands","author":"Sayed","date":"December 24, 2017","format":false,"excerpt":"echo \"Dec 24th, 2017\" 532 echo \"Basic Networking in Linux\" 533 hostname 534 uname -a 535 uname -n 536 cat \/etc\/hostname 537 nmcli general hostname 538 changing hostname temporarily 539 hostname server10.example.com 540 for permanent change 541 hostnamectl set-hostname server100.example.com 542 or change \/etc\/hostname file 543 vim \/etc\/hostname 544 restart\u2026","rel":"","context":"In "\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix"","block_context":{"text":"\u09b2\u09bf\u09a8\u09be\u0995\u09cd\u09b8 \u098f\u09ac\u0982 \u0989\u09a8\u09bf\u0995\u09cd\u09b8 \u0964 Linux and Unix","link":"http:\/\/bangla.sitestree.com\/?cat=1231"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":67594,"url":"http:\/\/bangla.sitestree.com\/?p=67594","url_meta":{"origin":67592,"position":5},"title":"Network Interface, Network Clients related Linux\/Redhat\/CentOS commands #DevOps #RHCSA","author":"Author-Check- Article-or-Video","date":"July 25, 2021","format":false,"excerpt":"echo \"Dec 24th, 2017\" 532 echo \"Basic Networking in Linux\" 533 hostname 534 uname -a 535 uname -n 536 cat \/etc\/hostname 537 nmcli general hostname 538 changing hostname temporarily 539 hostname server10.example.com 540 for permanent change 541 hostnamectl set-hostname server100.example.com 542 or change \/etc\/hostname file 543 vim \/etc\/hostname 544 restart\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/67592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=67592"}],"version-history":[{"count":0,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=\/wp\/v2\/posts\/67592\/revisions"}],"wp:attachment":[{"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=67592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=67592"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bangla.sitestree.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=67592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}