目录

• • 
    
• ​​目录​​
• ​​Disk Quota​​
• ​​How to enable the disk quota​​
• ​​Partition Disk​​

Disk Quota

Characteristic：

1. For specialty user

2. Limit user and baseGroup

3. Limit of DiskSize(Volume), limit of fileCount.

How to enable the disk quota

​step1​.Edit the fstab profile and add mount parameter for disk quota with file and directory.

vim /etc/fstab

usrquota,grpquota,acl   #Addition parameter for partotion

​step2​. Create disk quota file in goal quota directory.

quotacheck -augcv dirName

​step3​. Edit disk quota

edquota -u\g user\group
setquota -u\g user\group parameters #Select parameter:soft-Volume,hard-Volume,soft-fileCount,hard-fileCount

​step4​. Start server

quotaon   #start
quptaoff  #stop

If the limit breakthough the soft-limit, the state will from soft-limit to hard-limit after graceTime.

​setp5​. Check the quota info

repquota -a

Partition Disk

Create LVM

​Step1​. Create PV

pvcreate deviceName

​Step2​. Create VG

vgcreate vgName pvName

or

vgcreate -S PESize vgName pvName   #Specify the PE size

​Step3​. Create LV

lvcreate -L lvSize vgName -n lvName

or

lvcreate -l PECount vgName -n lvName   #Setup the vgSize via specify PEcount

LVM Extend

vgextend vgName pvName
lvextend -L +size(M,G) lvName
resize2fs /dev/vgName/lvName
#RHEL7 使用xfs_growfs指令来刷新分区容量

LVM Reduce

umount /dev/vgName/lvName    #You have to umount the LVM frist
e2fsck -f /dev/vgName/lvName
resize2fs /dev/vgName/lvName size
lvreduce -L size /dev/vgName/lvName
vgreduce vgName /dev/pvName  #The PV will be remove from VG

​Get the UUID of device​

blkid deviceName --> Create the UUID of device.