root@-50:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 32G 0 32G 0% /dev
tmpfs 6.3G 1.7M 6.3G 1% /run
/dev/md0 7.3T 7.0T 0 100% /
tmpfs 32G 0 32G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 32G 0 32G 0% /sys/fs/cgroup
tmpfs 6.3G 0 6.3G 0% /run/user/0
root@-50:~# sudo df -i /
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/md0 244174848 99780 244075068 1% /
我将其用作备份服务器,我曾错误地将其填满,但后来释放了空间,如上所示,但它仍然显示为 100% 已满。我尝试了自动删除和自动清理,还尝试了卸载 /tmp,但它显示未安装。有人知道这个问题的解决方案吗,服务器运行良好,但我需要更新其上运行的软件,但由于没有可用空间而无法更新。谢谢。
答案1
大多数 Linux 文件系统都会保留 5% 的分区空间供用户使用root
。300GB 肯定是相当大的一部分,但你可以使用以下命令来确认这一点dumpe2fs
:
dumpe2fs /dev/md0 | grep -i reserved
这将给你如下输出:
dumpe2fs 1.45.5 (07-Jan-2020)
Reserved block count: 5838835
Reserved GDT blocks: 1024
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
Reserved GDT blocks at 57-1080
Reserved GDT blocks at 32825-33848
Reserved GDT blocks at 98361-99384
Reserved GDT blocks at 163897-164920
Reserved GDT blocks at 229433-230456
Reserved GDT blocks at 294969-295992
Reserved GDT blocks at 819257-820280
Reserved GDT blocks at 884793-885816
Reserved GDT blocks at 1605689-1606712
Reserved GDT blocks at 2654265-2655288
Reserved GDT blocks at 4096057-4097080
Reserved GDT blocks at 7962681-7963704
Reserved GDT blocks at 11239481-11240504
Reserved GDT blocks at 20480057-20481080
Reserved GDT blocks at 23887929-23888952
Reserved GDT blocks at 71663673-71664696
Reserved GDT blocks at 78676025-78677048
Reserved GDT blocks at 102400057-102401080
您还可以使用以下命令更改保留的空间量tune2fs
:
tune2fs -m 0 /dev/md0
如果在之前的配置工作中已将此 5% 预留设置为 0,则可能某个进程打开了一个大文件,但该文件后来已被删除。如果是这种情况,您需要终止该进程以释放被阻止的存储空间。您可能能够使用 来识别该进程。在 Ubuntu 上,已删除但打开的文件在输出中lsof
被识别lsof
并标记为。(deleted)
您可以使用以下方法检查:
sudo lsof +L1
它会给你类似这样的结果:
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs
Output information may be incomplete.
lsof: WARNING: can't stat() fuse file system /run/user/1000/doc
Output information may be incomplete.
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NLINK NODE NAME
none 1914 root txt REG 0,1 17032 0 43118 / (deleted)
pulseaudi 2185 jason 6u REG 0,1 67108864 0 43740 /memfd:pulseaudio (deleted)
Xorg 2269 jason 37u REG 0,1 4 0 46738 /memfd:xshmfence (deleted)
Xorg 2269 jason 51u REG 0,1 4 0 188039 /memfd:xshmfence (deleted)
Xorg 2269 jason 52u REG 0,1 4 0 1559738 /memfd:xshmfence (deleted)
Xorg 2269 jason 53u REG 0,1 4 0 1559752 /memfd:xshmfence (deleted)
Xorg 2269 jason 54u REG 0,1 4 0 1538559 /memfd:xshmfence (deleted)
Xorg 2269 jason 55u REG 0,1 4 0 1538346 /memfd:xshmfence (deleted)
Xorg 2269 jason 59u REG 0,1 4 0 329944 /memfd:xshmfence (deleted)
Xorg 2269 jason 68u REG 0,1 4 0 312483 /memfd:xshmfence (deleted)
Xorg 2269 jason 70u REG 0,1 4 0 312485 /memfd:xshmfence (deleted)
Xorg 2269 jason 71u REG 0,1 4 0 310664 /memfd:xshmfence (deleted)
Xorg 2269 jason 72u REG 0,1 4 0 312648 /memfd:xshmfence (deleted)
...
希望这能为您指明正确的方向。