目录
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.
