{"id":427,"date":"2010-08-05T23:50:58","date_gmt":"2010-08-05T15:50:58","guid":{"rendered":"https:\/\/umarzuki.org\/blogku\/?p=427"},"modified":"2010-08-05T23:50:58","modified_gmt":"2010-08-05T15:50:58","slug":"nota-lvm-1","status":"publish","type":"post","link":"https:\/\/umarzuki.org\/blog\/2010\/08\/05\/nota-lvm-1\/","title":{"rendered":"Nota LVM #1"},"content":{"rendered":"

Saya mempunyai 3 cakera keras
\n1 berkapasiti 80 GB
\n2 masing-masing berkapasiti 40 GB<\/p>\n

Saya ingin membina satu partition dengan saiz 60 GB dengan 2 cakera keras 40 GB. Bakinya akan saya fikirkan kegunaannya dikemudian hari.<\/p>\n

Jadikan cakera keras 40 GB pertama sebagai volum fizikal
\n[code lang=’plain’]# pvcreate \/dev\/sdb
\n Physical volume “\/dev\/sdb” successfully created[\/code]<\/p>\n

Jadikan cakera keras 40 GB kedua sebagai volum fizikal
\n[code lang=’plain’]# pvcreate \/dev\/sdc
\n Physical volume “\/dev\/sdc” successfully created[\/code]<\/p>\n

Masukkan kedua-dua volum fizikal tadi ke kumpulan volum yang diberi nama (dibuat saat ini) volum-tambahan
\n[code lang=’plain’]# vgcreate volume-tambahan \/dev\/sdb \/dev\/sdc
\n Volume group “volume-tambahan” successfully created[\/code]<\/p>\n

Semak sama ada kumpulan volum tersebut tadi berjaya dicipta
\n[code lang=’plain’]# vgscan
\n Reading all physical volumes. This may take a while…
\n Found volume group “volume-tambahan” using metadata type lvm2[\/code]<\/p>\n

Papar maklumat kumpulan volum tadi
\n[code lang=’plain’]# vgdisplay volume-tambahan
\n — Volume group —
\n VG Name volume-tambahan
\n System ID
\n Format lvm2
\n Metadata Areas 2
\n Metadata Sequence No 1
\n VG Access read\/write
\n VG Status resizable
\n MAX LV 0
\n Cur LV 0
\n Open LV 0
\n Max PV 0
\n Cur PV 2
\n Act PV 2
\n VG Size 79.99 GB
\n PE Size 4.00 MB
\n Total PE 20478
\n Alloc PE \/ Size 0 \/ 0
\n Free PE \/ Size 20478 \/ 79.99 GB
\n VG UUID LRJHvx-ZqMd-5iZ1-xbcY-PqKz-igvu-JtyksY[\/code]<\/p>\n

Cipta volum lojikal bernama filem dengan kapasiti 60 GB pada kumpulan volum volum-tambahan
\n[code lang=’plain’]# lvcreate -n filem –size 60g volume-tambahan
\n Logical volume “filem” created[\/code]<\/p>\n

Semak penggunaan kumpulan volum. Perhatikan pada baris ketiga terakhir yang menunjukkan 60 Gb telah diperuntukkan untuk saya guna
\n[code lang=’plain’]# vgdisplay volume-tambahan
\n — Volume group —
\n VG Name volume-tambahan
\n System ID
\n Format lvm2
\n Metadata Areas 2
\n Metadata Sequence No 2
\n VG Access read\/write
\n VG Status resizable
\n MAX LV 0
\n Cur LV 1
\n Open LV 0
\n Max PV 0
\n Cur PV 2
\n Act PV 2
\n VG Size 79.99 GB
\n PE Size 4.00 MB
\n Total PE 20478
\n Alloc PE \/ Size 15360 \/ 60.00 GB
\n Free PE \/ Size 5118 \/ 19.99 GB
\n VG UUID LRJHvx-ZqMd-5iZ1-xbcY-PqKz-igvu-JtyksY[\/code]<\/p>\n

Sediakan sistem fail untuk volum lojikal filem
\n[code lang=’plain’]# mkfs.ext3 \/dev\/volume-tambahan\/filem
\nmke2fs 1.41.3 (12-Oct-2008)
\nFilesystem label=
\nOS type: Linux
\nBlock size=4096 (log=2)
\nFragment size=4096 (log=2)
\n3932160 inodes, 15728640 blocks
\n786432 blocks (5.00%) reserved for the super user
\nFirst data block=0
\nMaximum filesystem blocks=0
\n480 block groups
\n32768 blocks per group, 32768 fragments per group
\n8192 inodes per group
\nSuperblock backups stored on blocks:
\n\t32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
\n\t4096000, 7962624, 11239424<\/p>\n

Writing inode tables: done
\nCreating journal (32768 blocks): done
\nWriting superblocks and filesystem accounting information: done<\/p>\n

This filesystem will be automatically checked every 25 mounts or
\n180 days, whichever comes first. Use tune2fs -c or -i to override.[\/code]<\/p>\n

Papar maklumat volum lojikal tadi
\n[code lang=’plain’]# lvdisplay \/dev\/volume-tambahan\/filem
\n — Logical volume —
\n LV Name \/dev\/volume-tambahan\/filem
\n VG Name volume-tambahan
\n LV UUID JgDc0v-Hxtc-V1Is-LNQL-m731-CgJ6-z4ZNY4
\n LV Write Access read\/write
\n LV Status available
\n # open 0
\n LV Size 60.00 GB
\n Current LE 15360
\n Segments 2
\n Allocation inherit
\n Read ahead sectors auto
\n – currently set to 256
\n Block device 254:2[\/code]<\/p>\n

Cuba mount volum lojikal tadi dan semak dengan df<\/a>
\n[code lang=’plain’]# mkdir \/mnt\/filem
\n# mount \/dev\/volume-tambahan\/filem \/mnt\/filem\/
\n# df -h
\nFilesystem Size Used Avail Use% Mounted on
\n\/dev\/mapper\/debian-root
\n 78G 652M 73G 1% \/
\ntmpfs 253M 0 253M 0% \/lib\/init\/rw
\nudev 10M 656K 9.4M 7% \/dev
\ntmpfs 253M 0 253M 0% \/dev\/shm
\n\/dev\/sda1 228M 9.4M 207M 5% \/boot
\n\/dev\/mapper\/volume–tambahan-filem
\n 60G 180M 56G 1% \/mnt\/filem[\/code]<\/p>\n

Perhatikan pada baris terakhir yang menunjukkan bahawa volum lojikal tadi telah boleh digunakan.<\/p>\n

Sumber rujukan:
\nhttp:\/\/www.debian-administration.org\/articles\/410<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Saya mempunyai 3 cakera keras 1 berkapasiti 80 GB 2 masing-masing berkapasiti 40 GB Saya ingin membina satu partition dengan saiz 60 GB dengan 2 cakera keras 40 GB. Bakinya akan saya fikirkan kegunaannya dikemudian hari. Jadikan cakera keras 40 GB pertama sebagai volum fizikal [code lang=’plain’]# pvcreate \/dev\/sdb Physical volume “\/dev\/sdb” successfully created[\/code] Jadikan […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,103],"tags":[3,170],"class_list":["post-427","post","type-post","status-publish","format-standard","hentry","category-perisian","category-perkakasan","tag-linux","tag-lvm"],"_links":{"self":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts\/427","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/comments?post=427"}],"version-history":[{"count":0,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/posts\/427\/revisions"}],"wp:attachment":[{"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/media?parent=427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/categories?post=427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/umarzuki.org\/blog\/wp-json\/wp\/v2\/tags?post=427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}