我的虚拟化 RHEL 7.1 遇到这个问题。
我使用精简配置磁盘创建了此虚拟机。我认为我知道它应该如何工作——配置的空间可供虚拟机使用，但只要它没有真正使用，它就不会在存储上被阻止。
但是当我使用虚拟机时，我实际上没有可用空间。我的 /root 目录需要更多空间。终端有一些输出：
[root@rheldemo ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rhel_rheldemo-root 2.9G 1.1G 1.8G 37% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 148K 1.9G 1% /dev/shm
tmpfs 1.9G 17M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mapper/rhel_rheldemo-usr 9.8G 3.4G 5.9G 37% /usr
/dev/mapper/rhel_rheldemo-var 6.8G 3.6G 2.9G 55% /var
/dev/sda1 240M 102M 122M 46% /boot
/dev/mapper/rhel_rheldemo-tmp 2.0G 16M 1.8G 1% /tmp
/dev/mapper/rhel_rheldemo-home 56G 23G 31G 42% /home
[root@rheldemo ~]# lvdisplay
--- Logical volume ---
LV Name pool00
VG Name rhel_rheldemo
LV UUID xL5eEu-fNZG-ds3B-GcOk-rWHK-YMaT-367Tk8
LV Write Access read/write
LV Creation host, time localhost, 2016-03-07 13:11:08 +0100
LV Pool metadata pool00_tmeta
LV Pool data pool00_tdata
LV Status available
# open 6
LV Size 78.79 GiB
Allocated pool data 43.83%
Allocated metadata 19.98%
Current LE 20169
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2
--- Logical volume ---
LV Path /dev/rhel_rheldemo/root
LV Name root
VG Name rhel_rheldemo
LV UUID p0F2hQ-qgJ7-77UM-pdzR-yMzV-SboH-p3rhDp
LV Write Access read/write
LV Creation host, time localhost, 2016-03-07 13:11:08 +0100
LV Pool name pool00
LV Status available
# open 1
LV Size 3.00 GiB
Mapped size 35.95%
Current LE 768
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:3
...
[root@rheldemo ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta%
home rhel_rheldemo Vwi-aotz-- 56.79g pool00 42.35
pool00 rhel_rheldemo twi-aotz-- 78.79g 43.83 19.98
root rhel_rheldemo Vwi-aotz-- 3.00g pool00 35.95
swap rhel_rheldemo -wi-ao---- 4.00g
tmp rhel_rheldemo Vwi-aotz-- 2.00g pool00 94.10
usr rhel_rheldemo Vwi-aotz-- 10.00g pool00 37.31
var rhel_rheldemo Vwi-aotz-- 7.00g pool00 54.16
[root@rheldemo ~]# pvscan
PV /dev/sda2 VG rhel_rheldemo lvm2 [98.54 GiB / 15.60 GiB free]
Total: 1 [98.54 GiB] / in use: 1 [98.54 GiB] / in no VG: 0 [0 ]
[root@rheldemo ~]# vgdisplay
--- Volume group ---
VG Name rhel_rheldemo
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 15
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 7
Open LV 6
Max PV 0
Cur PV 1
Act PV 1
VG Size 98.54 GiB
PE Size 4.00 MiB
Total PE 25227
Alloc PE / Size 21233 / 82.94 GiB
Free PE / Size 3994 / 15.60 GiB
VG UUID O7L00I-aILt-M4nS-FQz3-mQsR-fhjm-gvVKvb
[root@rheldemo ~]# fdisk -l
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x00094f6b
Device Boot Start End Blocks Id System
/dev/sda1 2048 526335 262144 83 Linux
/dev/sda2 * 526336 207192063 103332864 8e Linux LVM
Disk /dev/mapper/rhel_rheldemo-pool00_tmeta: 83 MB, 83886080 bytes, 163840 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/rhel_rheldemo-pool00_tdata: 84.6 GB, 84594917376 bytes, 165224448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
...
那么，我错过了什么吗？
预先感谢您的帮助！