一、AWS EBS掛載
1、查看已經連接上的卷
[root@worker-oss centos]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda 202:0 0 20G 0 disk
└─xvda1 202:1 0 20G 0 part /
xvdf 202:80 0 30G 0 disk /fastdfs
xvdg 202:96 0 15G 0 disk
2、格式化剛剛加載的卷，例如，xvdg是新加的卷。
[root@worker-oss centos]# sudo mkfs -t xfs /dev/xvdg
meta-data=/dev/xvdg isize=512 agcount=4, agsize=983040 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=3932160, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
3、查看設備xvdg的UUID
[root@worker-oss centos]# ls -al /dev/disk/by-uuid/
總用量 0
drwxr-xr-x. 2 root root 100 7月 20 01:39 .
drwxr-xr-x. 3 root root 60 7月 17 14:57 ..
lrwxrwxrwx. 1 root root 10 7月 20 01:39 0cf71957-56a6-4302-873e-1998f81aac5b -> ../../xvdg
lrwxrwxrwx. 1 root root 11 7月 17 14:57 5f1871e2-c19c-4f86-8d6c-04d5fda71a0a -> ../../xvda1
lrwxrwxrwx. 1 root root 10 7月 18 10:51 9a011466-05e8-475d-ac40-745309acf40a -> ../../xvdf
4、創建待掛載的目錄
[root@worker-oss centos]# mkdir /db
5、掛載xvdg到/db目錄
[root@worker-oss centos]# cp /etc/fstab /etc/fstab.bak
[root@worker-oss centos]# vim /etc/fstab
UUID=5f1871e2-c19c-4f86-8d6c-04d5fda71a0a / xfs defaults 0 0
UUID=9a011466-05e8-475d-ac40-745309acf40a /fastdfs xfs defaults,nofail 0 2
UUID=0cf71957-56a6-4302-873e-1998f81aac5b /db xfs defaults,nofail 0 2
6、掛載卷
[root@worker-oss db]# sudo mount -a
6、查看已掛載的目錄
[root@worker-oss centos]# cd /db/
[root@worker-oss db]# ls -al
總用量 0
drwxr-xr-x. 2 root root 6 7月 20 01:41 .
dr-xr-xr-x. 20 root root 261 7月 20 01:41 ..
[root@worker-oss db]#
二、卸載AWS EBS卷
1、卸載卷fastdfs
umount -d /dev/xvdf
2、刪除/etc/fstab裏面的uuid
vim /etc/fstab/
#UUID=9a011466-05e8-475d-ac40-745309acf40a /fastdfs xfs defaults,nofail 0 2