update: more user friendly#
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| #bin/bash
mustBeRoot() {
if [ "$(id -u)" != "0" ]; then
echo "只有root用户才能运行" 1>&2
echo "当前登录用户`whoami`"
exit 1
fi
}
# 数据盘挂载
checkAndMountDataDisk() {
echo "选择数据盘/分区 ："
fdisk -l | grep /dev | grep G | cut -f 1 -d ,
echo " "
read -p "请输入硬盘/分区 名：/dev/" -r disk_name
disk_id=`blkid | grep $disk_name`
if [ $? -ne 0 ];then
echo "获取硬盘/分区 $disk_name uuid失败，请检查名称是否准确"
exit 1
fi
disk_path=`echo $disk_id | cut -f 1 -d ':' `
echo "已选择 $disk_path"
disk_uuid=`blkid $disk_path | cut -f 2 -d '"' `
disk_info=`lsblk -f $disk_path | grep $disk_uuid `
if [ $? -ne 0 ];then
echo "获取硬盘/分区 $disk_path 详细信息失败，请检查名称是否正确"
exit 1
fi
fs_type=`echo $disk_info | cut -f 2 -d ' '`
if [ $fs_type != 'ext4' ];then
echo "硬盘文件系统格式不是ext4。"
read -p "是否格式化为 ext4？ 输入 y 同意格式化" -r format_ext4
if [ $format_ext4 != 'y' ];then
echo "未格式化 $disk_path 文件系统格式，退出安装脚本。"
exit 1
fi
echo "即将格式化 $disk_path 文件系统格式...."
mkfs.ext4 $disk_path
fi
if [ -d "$1" ];then
echo "数据盘挂载点/data目录已存在"
else
echo "创建数据盘挂载点/data目录"
mkdir $1
fi
mount UUID=$disk_uuid $1
echo "UUID=$disk_uuid $1 ext4 defaults 0 0" >> /etc/fstab
echo "硬盘挂载成功"
}
checkDataMountpoint() {
echo '挂载数据盘'
grep "$1" /etc/fstab | grep ext4
if [ $? -ne 0 ];then
checkAndMountDataDisk
else
echo '数据盘已挂载'
mount -a
fi
cpAndUntar
}
mustBeRoot
checkDataMountpoint ${1-/data}
|
lsblk#
首先使用lsblk查看当前系统硬盘挂载的情况
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| [root@dev-7 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
vda 253:0 0 40G 0 disk
└─vda1 253:1 0 40G 0 part /
vdb 253:16 0 200G 0 disk
└─vdb1 253:17 0 200G 0 part
|
格式化硬盘然后挂载到 /media/newdrive 目录
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| ### disk_add_new.sh
function set_vars() {
fs_ty=ext4
mount_point=/media/newdrive
#check=`fdisk -l | grep GB | cut -d ':' -f1 | cut -c 6-`
#new_disk=`echo $check | cut -d ' ' -f 2`
new_disk=$1
# new_disk=${check##*\ }
}
function make_file_system(){
mkfs -t $fs_ty $new_disk
}
function get_uuid() {
uuid_info=`blkid $new_disk`
uuid=${uuid_info#*UUID}
id=`echo $uuid | cut -d '"' -f 2`
}
function mount_and_auto_mount() {
mkdir -p $mount_point
mount -t $fs_ty $new_disk $mount_point
grep $id /etc/fstab || echo UUID=$id $mount_point $fs_ty defaults 0 0 >> /etc/fstab
}
function run() {
set_vars $1
make_file_system
get_uuid
[ ${#id} -gt 30 ] || exit 1
mount_and_auto_mount
}
run $1
|
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| mount_point=/media/newdrive
# check=`fdisk -l | grep GB | cut -d ':' -f1 | cut -c 6-`
# disk=`echo $check | cut -d ' ' -f 2`
disk=$1 # /dev/sdb sdc
fs_ty=ext4
e2fsck -f $disk
resize2fs $disk
mount -t $fs_ty $disk $mount_point
|
逻辑卷#
创建逻辑卷#
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| pvcreate /dev/vdb
vgcreate vg02 /dev/vdb
lvcreate -l 90%free -n kubelet vg02
mkfs.xfs -n ftype=1 /dev/vg02/kubelet
mount /dev/vg02/kubelet /var/lib/kubelet
echo "/dev/mapper/vg02-kubelet /var/lib/kubelet xfs defaults 0 0 " >> /etc/fstab
|
扩容逻辑卷#
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| # 1. 删除未挂载的逻辑卷
lvremove vg02/kubelet # lvremove vg02
# 2. 删除kubelet的磁盘
vgreduce vg02 /dev/vdb # vgremove vg02
# 3. 将原来的磁盘加到别的vg
vgextend vg01 /dev/vdb
# 4. 扩容逻辑卷
lvextend -L +200G /dev/vg01/var
# 5. 生效
xfs_groups /dev/vg01/var
# 6. 删除/etc/fstab 中kubelet的挂载点
## vim /etc/fstab +5dd
|
troubleshoot#
有时候删除逻辑卷会遇到报错Logical volume vg01/LVgdb contains a filesystem in use
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| [root@cnsz92vl14311 ~]# umount /dev/vg01/LVgdb
[root@cnsz92vl14311 ~]# lvremove /dev/vg01
Do you really want to remove active logical volume LVgdb? [y/n]: y
Logical volume "LVgdb" successfully removed
[root@cnsz92vl14311 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 60G 0 disk
├─vda1 252:1 0 476M 0 part /boot
└─vda2 252:2 0 59.5G 0 part
├─vg00-root 253:0 0 10G 0 lvm /
├─vg00-home 253:1 0 500M 0 lvm /home
├─vg00-var 253:2 0 10G 0 lvm /var
├─vg00-tmp 253:3 0 10G 0 lvm /tmp
└─vg00-app 253:4 0 29G 0 lvm /app
vdb 252:16 0 300G 0 disk
[root@cnsz92vl14311 ~]#
|
