LVM
Server disk 的擴充是在 linux operation 常見的使用者需求。
會需要 System engineer 協助在phy or vm 加上lvm
linux常見操作指令 :
$ lsblk : 可以查看 disk 狀況
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$fdisk :磁碟管理工具,可以引導操作
如果 disk 沒有顯示,請先掃描
$ ls /sys/class/scsi_host
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$ echo "- - -" > /sys/class/scsi_host/host[數字]/scan
以上圖為例:
sdd 為一個未被使用的硬碟,先做 pv , extend 到 vg, 在 extend lv
$pvcreate /dev/sdd
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$vgs 查看 vgs狀況
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$ vgextend vg01 /dev/sdd à 把新空間加到 vg01,vgs 就可以看到有 free 空間
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$ lvextensd -l +100%free /dev/vg01/lv01
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$ xfs_growfs /data/
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
最後可以用 df -h 或是 lsblk查看
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
如果今天是一個全新的 lvm 要使用?
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
步驟差異:
$ pvcreate /dev/sdd
$ vgcreate PGdata /dev/sdb
$vgdisplay -v PGdata
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
還沒 lvcreate前 free PE 204799
$ lvcreate -l 204799 -n PGdata_lv /dev/PGdata
$ mkfs.xfs /dev/PGdata/PGdata_lv
把空間 mount 到 /data
透過編寫/etc/fstab
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →
$ mount -a
Image Not Showing
Possible Reasons
- The image was uploaded to a note which you don't have access to
- The note which the image was originally uploaded to has been deleted
Learn More →