?????????????
?????????????????????????sdb?????????????????/dev/sdb1
???????????????lvm????
??pv??
[root@tvm-test ~]# pvcreate /dev/sdb1
??vg??
[root@tvm-test ~]# vgcreate vg01 /dev/sdb1
??lv??
[root@tvm-test ~]# lvcreate -L 10G -n lv01 vg01
??mkfs??
[root@tvm-test ~]# mkfs.ext4 /dev/vg01/lv01
??mount??
[root@tvm-test ~]# mkdir /DATA01 && mount /dev/vg01/lv01 /DATA01
[root@tvm-test ~]# echo "UUID=$(blkid /dev/vg01/lv01 |cut -d'"' -f2) /DATA01                 ext4    defaults        1 2" >>/etc/fstab
[root@tvm-test ~]# df -h
Filesystem             Size  Used Avail Use% Mounted on
/dev/sda3              3.8G  1.7G  2.0G  46% /
tmpfs                  246M   12K  246M   1% /dev/shm
/dev/sda1              194M   29M  155M  16% /boot
/dev/mapper/vg01-lv01  9.9G  151M  9.2G   2% /DATA01
???д?????????/DATA01/??
[root@tvm-test ~]# touch /DATA01/file2_{1..5} && mkdir /DATA01/dir2_{1??2??3} && touch /DATA01/dir2_{1??2}/file3.{aa??bb??cc}
[root@tvm-test ~]# dd if=/dev/zero of=/DATA01/dir2_3/test1.dd bs=512 count=100000
100000+0 records in
100000+0 records out
51200000 bytes (51 MB) copied?? 0.186818 s?? 274 MB/s
[root@tvm-test ~]# dd if=/dev/zero of=/DATA01/dir2_3/test2.dd bs=1024 count=100000
100000+0 records in
100000+0 records out
102400000 bytes (102 MB) copied?? 0.230891 s?? 443 MB/s
[root@tvm-test ~]# dd if=/dev/zero of=/DATA01/dir2_3/test2.dd bs=2048 count=100000
100000+0 records in
100000+0 records out
204800000 bytes (205 MB) copied?? 0.319986 s?? 640 MB/s
[root@tvm-test ~]# dd if=/dev/zero of=/DATA01/dir2_3/test2.dd bs=4096 count=100000
100000+0 records in
100000+0 records out
409600000 bytes (410 MB) copied?? 0.572126 s?? 716 MB/s
[root@tvm-test ~]# tree /DATA01/
/DATA01/
?????? dir2_1
??   ?????? file3.aa
??   ?????? file3.bb
??   ?????? file3.cc
?????? dir2_2
??   ?????? file3.aa
??   ?????? file3.bb
??   ?????? file3.cc
?????? dir2_3
??   ?????? test1.dd
??   ?????? test2.dd
?????? file2_1
?????? file2_2
?????? file2_3
?????? file2_4
?????? file2_5
3 directories?? 13 files
[root@tvm-test ~]# df -h /DATA01/
Filesystem             Size  Used Avail Use% Mounted on
/dev/mapper/vg01-lv01  9.9G  590M  8.8G   7% /DATA01