| 리눅스 관련 게시판 |
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| 2014/12/01(14:21) from 210.93.7.52 | |
| 작성자 : 주인장 | 조회수 : 7467 , 줄수 : 175 |
| [CentOS] lvm 관련 명령어 |
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1. 추가한 Disk 확인 $ fdisk -l [root@localhost ~]# fdisk -l Disk /dev/sda: 26.8 GB, 26843545600 bytes 255 heads, 63 sectors/track, 3263 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: 0x000d00f9 Device Boot Start End Blocks Id System /dev/sda1 * 1 39 307200 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 39 561 4194304 82 Linux swap / Solaris Partition 2 does not end on cylinder boundary. /dev/sda3 561 3264 21711872 83 Linux Disk /dev/sdb: 107.4 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 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: 0x00000000 2. pv 확인 $ pvscan No matching physical volumes found 3. pv 만들기, 확인 $ pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created $ pvremove /dev/sdb Labels on physical volume "/dev/sdb" successfully wiped $ pvdisplay "/dev/sdb" is a new physical volume of "100.00 GiB" --- NEW Physical volume --- PV Name /dev/sdb VG Name PV Size 100.00 GiB Allocatable NO PE Size 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID iq3Hpo-fKhB-8WSn-d17R-OnLQ-RyrI-Q4fQRP $ pvscan PV /dev/sdb lvm2 [100.00 GiB] Total: 1 [100.00 GiB] / in use: 0 [0 ] / in no VG: 1 [100.00 GiB] 4. vg 만들기 $ vgdisplay No volume groups found $ vgcreate datavg /dev/sdb Volume group "datavg" successfully created $ vgdisplay --- Volume group --- VG Name datavg System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 1 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 100.00 GiB PE Size 4.00 MiB Total PE 25599 Alloc PE / Size 0 / 0 Free PE / Size 25599 / 100.00 GiB VG UUID UtfBx1-yqHd-jgdj-P7bp-pVe7-KdYb-lF4b84 5. lv 만들기 & 삭제하기 (1G) $ lvcreate -n oracle_lv -L 1G datavg Logical volume "oracle_lv" created $ umount /home2 $ lvremove /dev/datavg/home2_lv (umount를 하고, lv path를 입력해줘야 한다.) 6. lv 정보 확인 $ lvdisplay --- Logical volume --- LV Path /dev/datavg/oracle_lv LV Name oracle_lv VG Name datavg LV UUID u2ZMUn-Icn7-GycH-jdw7-OJ3W-EJOM-QJOs2L LV Write Access read/write LV Creation host, time localhost.localdomain, 2014-12-01 14:17:56 +0900 LV Status available # open 0 LV Size 1.00 GiB Current LE 256 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 7. ext4로 포맷 $ mkfs.ext4 /dev/datavg/oracle_lv mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 65536 inodes, 262144 blocks 13107 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=268435456 8 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376 Writing inode tables: done Creating journal (8192 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 25 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. 8. tune2fs 점검없음설정 (점검간격 0, 점검없음 -1) $ tune2fs -i 0 -c -1 /dev/datavg/oracle_lv tune2fs 1.41.12 (17-May-2010) Setting maximal mount count to -1 Setting interval between checks to 0 seconds 9. Mount 포인트 만들기 $ mkdir /home1 10. Mount 하기 $ mount /dev/datavg/oracle_lv /home1 $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 21G 1.3G 19G 7% / tmpfs 939M 0 939M 0% /dev/shm /dev/sda1 291M 36M 241M 13% /boot /dev/mapper/datavg-oracle_lv 1008M 34M 924M 4% /home1 |
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