我有一台专用服务器，运行 Ubuntu Server 14.04 LTS。
我的磁盘空间有问题：
df -h
Filesystem Size Used Avail Use% Mounted on
udev 7.8G 8.0K 7.8G 1% /dev
tmpfs 1.6G 568K 1.6G 1% /run
/dev/md1 4.0G 4.0G 0 100% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 7.8G 0 7.8G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/mapper/vg00-usr 104G 1.8G 98G 2% /usr
overflow 500M 0 500M 0% /tmp
/dev/mapper/vg00-var 709G 125G 556G 19% /var
/dev/mapper/vg00-home 69G 24G 43G 36% /home
我该怎么做才能释放空间和/或添加空间，
/dev/md1或者这是正常的吗？我已经安装了
apache2，mysql（我更改了buffer_size，添加了大小以/tmp方便查询）memcached，，pagespee。我添加了一个 20GB 的交换文件：
Filename Type Size Used Priority /dev/sda2 partition 2097148 0 -1 /dev/sdb2 partition 2097148 0 -2 /home/archivo-swap file 20971516 0 -3my.conf因为我更改了我的 mysql，所以我放了swap 的使用有问题吗innodb_buffer_pool_size = 8G？
输出的fdisk -l
Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x4d10fd7b
Device Boot Start End Blocks Id System
/dev/sdb1 2048 8390655 4194304 fd Linux raid autodetect
/dev/sdb2 8390656 12584959 2097152 82 Linux swap / Solaris
/dev/sdb3 12584960 1953525167 970470104 fd Linux raid autodetect
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x0b43aed6
Device Boot Start End Blocks Id System
/dev/sda1 2048 8390655 4194304 fd Linux raid autodetect
/dev/sda2 8390656 12584959 2097152 82 Linux swap / Solaris
/dev/sda3 12584960 1953525167 970470104 fd Linux raid autodetect
Disk /dev/md1: 4294 MB, 4294901760 bytes
2 heads, 4 sectors/track, 1048560 cylinders, total 8388480 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table
Disk /dev/md3: 993.8 GB, 993761296384 bytes
2 heads, 4 sectors/track, 242617504 cylinders, total 1940940032 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md3 doesn't contain a valid partition table
Disk /dev/mapper/vg00-usr: 112.7 GB, 112742891520 bytes
255 heads, 63 sectors/track, 13706 cylinders, total 220200960 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg00-usr doesn't contain a valid partition table
Disk /dev/mapper/vg00-var: 773.1 GB, 773094113280 bytes
255 heads, 63 sectors/track, 93990 cylinders, total 1509949440 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg00-var doesn't contain a valid partition table
Disk /dev/mapper/vg00-home: 75.2 GB, 75161927680 bytes
255 heads, 63 sectors/track, 9137 cylinders, total 146800640 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg00-home doesn't contain a valid partition table
命令sudo du -hsx /*
sudo du -hsx /*
9.8M /bin
141M /boot
8.0K /dev
7.7M /etc
24G /home
0 /initrd.img
0 /initrd.img.old
939M /lib
4.0K /lib64
48K /lost+found
8.0K /media
4.0K /mnt
14M /node_modules
4.0K /opt
du: cannot access '/proc/28275/task/28275/fd/4': No such file or directory
du: cannot access '/proc/28275/task/28275/fdinfo/4': No such file or directory
du: cannot access '/proc/28275/fd/4': No such file or directory
du: cannot access '/proc/28275/fdinfo/4': No such file or directory
0 /proc
2.9G /root
564K /run
11M /sbin
4.0K /srv
0 /sys
0 /tmp
1.7G /usr
125G /var
0 /vmlinuz
0 /vmlinuz.old
有关 /root 命令du -h --max-depth=1 路径“/root”的信息
4.0K ./tmp
12K ./.config
8.0K ./.ssh
16K ./.aptitude
2.8G ./.forever
4.0K ./.cache
31M ./.npm
2.9G .
./.forever我可以用“./.npm”做什么？
答案1
我在“的帮助下找到了解决方案”钢铁司机“
问题：我的问题是我forever start myscript.js以 root 用户身份运行，forever将所有日志保存在运行脚本的用户文件夹中，这就是为什么我没有空间/dev/md1
解决方案：将所有文件移动/root/.forever到我的新用户中，/home/user/.forever并forever start myscript.js以我的新用户身份运行。
我有更多的空间/dev/md1
df -h
Filesystem Size Used Avail Use% Mounted on
udev 7.8G 8.0K 7.8G 1% /dev
tmpfs 1.6G 560K 1.6G 1% /run
/dev/md1 4.0G 1.2G 2.8G 30% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 7.8G 0 7.8G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/mapper/vg00-usr 104G 1.8G 98G 2% /usr
overflow 500M 0 500M 0% /tmp
/dev/mapper/vg00-var 709G 125G 556G 19% /var
/dev/mapper/vg00-home 69G 27G 40G 41% /home
文件夹root
ls -ahl
total 104K
drwx------ 8 root root 4.0K Jul 12 01:23 .
drwxr-xr-x 23 root root 4.0K Jul 9 00:57 ..
-rw-r--r-- 1 root root 0 Jul 12 00:33 all
drwx------ 2 root root 4.0K Jun 27 13:02 .aptitude
-rw------- 1 root root 39K Jul 12 01:25 .bash_history
-rw-r--r-- 1 root root 3.1K Feb 20 2014 .bashrc
drwx------ 2 root root 4.0K Mar 4 2014 .cache
drwx------ 3 root root 4.0K Jun 30 02:49 .config
-rw-r--r-- 1 root root 29 Jun 27 13:07 created
-rw-r--r-- 1 root root 0 Jul 11 21:16 findjs
-rw------- 1 root root 35 Apr 22 2015 .lesshst
-rw------- 1 root root 3.9K Jul 8 23:39 .mysql_history
-rw------- 1 root root 570 Jul 12 01:23 .nano_history
drwxr-xr-x 164 root root 12K Jul 1 21:26 .npm
-rw-r--r-- 1 root root 140 Feb 20 2014 .profile
drwx------ 2 root root 4.0K Jun 30 04:39 .ssh
drwxr-xr-x 2 root root 4.0K Jul 1 21:26 tmp
2017年8月29日更新：
- 检查旧内核，删除它们以获取空间...
- 检查日志文件来查看或清除它们。