This tag is for questions about hard disk space usage.

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2
votes
3answers
41 views

space check on unix machines

I am having space issues on 1 of the UNIX servers. I am executing the below command to check the space utilization. But this command is very slow and takes hours of time to give the result. du -sg * ...
0
votes
0answers
6 views

Using snmpdf on a linux or unix machine

After searching and thrusting many different tries into play, I cannot find a command or variation of one that will print results different from: $ snmpdf -v 2c -c inserted_tries here Description ...
9
votes
3answers
3k views

How to `du` only the space used up by files that are not hardlinked elsewhere?

Using rsync --link-dest for space-saving snapshots, how can I figure out how much space I actually saved? Or more general: How to figure out how much space a directory uses considering only files ...
3
votes
5answers
961 views

How to get folder size ignoring hard links?

I use rsnapshot for backups, which generates a series of folders containing files of the same name. Some of the files are hard linked, while others are separate. For instance, hourly.1/file1 and ...
123
votes
28answers
51k views

Tracking down where disk space has gone on Linux?

When administering Linux systems I often find myself struggling to track down the culprit after a partition goes full. I normally use du / | sort -nr but on a large filesystem this takes a long time ...
11
votes
5answers
785 views

How do I get the size of a directory on the command line?

I tried to obtain the size of a folder (containing folders and sub folders) by using the ls command with option l. It seems to work for files (ls -l file name), but if I try to get the size of a ...
1
vote
0answers
20 views

When using btrfs, why “Size”, “Used” and “Avail” values from df do not match?

I have similar problem like unix.stackexchange.com/questions/37489/ btrfs filesystem show Label: none uuid: 3fdeaf6d-ca88-4cc8-8405-f882f02693f7 Total devices 3 FS bytes used 1.53MB devid ...
0
votes
1answer
22 views

Disparity between output of `fsck` and `df`

fsck shows /dev/sda1 is okay, and uses 3811/49152 inodes and 105570/171776 blocks. df -i and df show that /dev/sda1 uses 443/239944 inodes and 0/959776 KiB. GParted shows /dev/sda1 uses ...
2
votes
1answer
590 views

How to monitor per user disk usage in Linux

I have local disk with 2T capacity attached to a host. Nearly 60 user home directories are stored on this disk. Currently no disk quotas are enabled. I need monitor the disk usage of individual ...
0
votes
0answers
13 views

How can I figure out the size of a block on a busybox device?

This is the output of df on my little embedded device: # df Filesystem 1k-blocks Used Available Use% Mounted on rootfs 3008 3008 0 100% / /dev/root ...
3
votes
1answer
27 views

“Ghost” files in ext4? (ktorrent allocated disk space)

I'm downloading with KTorrent, and have noticed that when I select "allocate disk space before starting torrent", it creates all the files at start, presumably empty, to avoid fragmentation. When I'm ...
3
votes
2answers
83 views

df, du report incorrect disk usage

df and du both incorrectly report that my root partition, a 100GB SSD, has no remaining space and uses 100G respectively; 85G in /home/steven alone. A simple summing of the disk usage provided by du, ...
1
vote
2answers
78 views

15 GB of unaccounted-for space in filesystem

[nathanb /mnt/work] sudo du -hs . 23G . [nathanb /mnt/work] df -h . Filesystem Size Used Avail Use% Mounted on /dev/sdb1 40G 38G 6.4M 100% /mnt/work Where is the other 15 GB? ...
1
vote
1answer
33 views

What is this data that keeps reappearing after partition delete + new partition creation?

I deleted a big extended partition containing an ntfs logical partition with high percentage of occupied space and from that extended partition I made a new, smaller extended part. In it I ...
2
votes
2answers
55 views

Is it safe to empty /usr/share/doc?

I don't need the man pages and documentations on my debian server. Is it save to empty that folder completely to free up some disk-space, by replacing all files in that folder with empty dummy files. ...
0
votes
1answer
18 views

removing clamav with purge leaves database

I uninstalled clamav with apt-get remove --purge clamav but still I have this 100MB folder: du -shc /var/lib/clamav Why is this not deleted on purge? And how can I find out if some other ...
4
votes
0answers
51 views

Fixing terrible performance when watching/reading video and writing video files to disk

I have had this issue for quite some time and tried many times to fix it on my own and it always fails. IP schedulers, ionice and things like that always yield no result. I even went and bought an ...
1
vote
1answer
31 views

System reports almost no space available, but the totals don't add up

I'm running Debian 6.x df -h tells me this: # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 17G 696M 97% / .... But these numbers don't add up... # ...
52
votes
1answer
2k views

Why are there so many different ways to measure disk usage?

When I sum up the sizes of my files, I get one figure. If I run du, I get another figure. If I run du on all the files on my partition, it doesn't match what df claims is used. Why are there so many ...
4
votes
3answers
13k views

Shell script to send an alert mail if disk usage exceeds 90%

I am new to shell scripting and want to implement a script on my server which will automatically send email alerts if the disk usage goes over 90% and second email alert when it goes over 95%. My ...
3
votes
2answers
332 views

What does “1K-blocks” column mean in the output of `df`?

What does "1K-blocks" column mean in the output of df? $ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda7 21181308 19302672 802668 97% / udev 4070176 ...
8
votes
4answers
2k views

Directory size calculation difference

I need to get the size of directory in terminal for signing purposes. I'm using following command: du -s /path/to/dir I'm multiplying the result by traditional UNIX block size (512 bytes) and get ...
43
votes
4answers
32k views

Reserved space for root on a filesystem - why?

I understand that by default, newly created filesystems will be created with 5% of the space allocated for root. I also know you can change the defined space with: tune2fs -m 1 /dev/sdXY What I'm ...
1
vote
2answers
1k views

RedHat Linux Space Usage Problem

I recently downloaded something on my Redhat Linux computer, and it told me I was out of space. I checked my disk usage, and it says I've used 100% of my folder, but as you can see I still have almost ...
1
vote
2answers
901 views

root partition getting full with nfs mounted directory [closed]

I am having one nfs volume, which is mounted on one of the directory of root partition. My problem is when I checked df -ha it adds up mounted directory file content as well. Following are my ...
4
votes
2answers
70 views

How do I get the old `du` behaviour back?

Trying to move stuff around on my server (Ubuntu 12.04) I wanted to know the size of each of the subdirectories of the current directory and the total for the current directory using du: $ du -sm * . ...
17
votes
7answers
33k views

How do I count all the files recursively through directories

I want to see how many files are in subdirectories in there subdirectories to find out where all the inode usage is on the system. Kind of like I would do this for space usage du -sh /* which will ...
3
votes
1answer
58 views

du -s --apparent-size VS du -s

Can someone tell me the differences from: du -s dir 3705012 dir du -s --apparent-size dir 3614558 dir these dirs are inside a block device (created using cryptsetup). Or better: why I need add ...
1
vote
1answer
35 views

How to collect disk read/write activity over a given period of time?

Sometimes, especially upon login, I have a lot of disk activity. I can use iotop to see what's doing that at a given moment, but I would like to have an integral table over a given time, say the first ...
5
votes
3answers
633 views

What's the rationale to have option to use power of 1000 instead of 1024 in df?

I'm curious about df -H and df -h, then man df tells me: -h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G) -H, --si likewise, but use powers of ...
2
votes
2answers
50 views

Combine output from df -h /dev/xvda1 into a single line

I want to convert the 2 line output from df -h into a single, meaningful line i.e. Take [root@ip-10-42-1-246 tmp]# df -h /dev/xvda1 Filesystem Size Used Avail Use% Mounted on /dev/xvda1 ...
26
votes
9answers
10k views

How to understand what's taking up space?

I'm looking for a linux alternative to WinDirStat. I would like to know what is taking up space on my hard drives. A program that works on console and doesn't require a UI is preferred .
12
votes
1answer
5k views

Print size of directory content with tree command in tree 1.5?

I like tree it's a nice way to display my files and the size of folders/directories. But the -h option only shows the size of the directory, not it's contents. /media/ ├── [ 16K] 64D9-E862 │   ├── ...
53
votes
11answers
26k views

how do you sort du output by size?

How do you sort du -sh /dir/* by size? I read one site that said use | sort -n but that's obviously not right. Here's an example that is wrong. [~]# du -sh /var/* | sort -n 0 /var/mail 1.2M ...
0
votes
2answers
57 views

How can I recover disk space shown by the difference in disk usage between ls and du

I have a one Terabyte external hard disk drive that I intend (should have done this long ago) to use for backups, and I have done a lot of experimenting to get my mind round it. When I looked again ...
2
votes
3answers
85 views

How to know list of directories under a filesystem?

If I run sudo df -h command, I got below output: Filesystem Size Used Avail Use% Mounted on /dev/sda2 12G 9.5G 1.1G 91% / /dev/sda4 3.8G 1.5G 2.1G 41% /home ...
0
votes
1answer
227 views

How to clean up the rootfs partition or increase the size

Can't figure out how I should clean up my rootfs partition. It's 95% used, with total of 9.1G in space. Isn't that much for a root partition? This is my ouput of df -h command: /# df -h ...
4
votes
2answers
367 views

How to show only total file size of particular extension by `du` command

I have a hundreds of pdf files and html files in a directory. And I want to know total size of pdf files. By command du -ch /var/foo I can see total file size but I only need last line, the total ...
0
votes
1answer
2k views

“bash: cannot create temp file for here-document: No space left on device”

My / only has about 800MB free space left. I guess it is the reason that $ convert * book.pdf Segmentation fault (core dumped) bash: cannot create temp file for here-document: No space left on device ...
3
votes
4answers
512 views

Which directory is taking up the most space

Jenkins has stopped building and I can see from df: that /var is maxed. Following this I can see the culprit is /var/lib/jenkins 52K alternatives ... 4.0K games 2.3G jenkins <--this ...
7
votes
3answers
739 views

How to recompress 2 million gzip files without storing them twice?

I have about 2 million (60GiB) of gzipped small files and I would like to create a compressed archive containing all of them in an uncompressed version. Unfortunately, I cannot just uncompress them ...
8
votes
6answers
14k views

Finding files that use the most disk space

Is it possible to list the largest files on my hard drive? I frequently use df -H to display my disk usage, but this only gives the percentage full, GBs remaining, etc. I do a lot of data-intensive ...
1
vote
1answer
37 views

du -sh on a new directory gives different results in different locations

Here's what happened when I created a new directory and immediately ran du on it. There are no contents in this directory. me@mybox[~]$ mkdir /scratch/test2 me@mybox[~]$ du -sh /scratch/test2 4.0K ...
1
vote
0answers
51 views

What is the most elegant way to limit /tmp?

Recently I was struck by this tricky bug. In it, /tmp gets overflowed with symlinks until the system runs out of inodes. What is the best way to be sure that this can never happen again? I'd like to, ...
3
votes
1answer
90 views

Find the total disk usage not including files containing a string

I am trying to get the disk usage of the owncloud directory except not including the files and dirs containing the string nobackup in the name/dir. This is my command so far : find . -type f -not ...
1
vote
3answers
780 views

the difference in used hard drive space as shown by df and du is HUGE! [duplicate]

It seems that du discounts the #open files when calculating the disk usage, and this hit me when I saw that df is showing 100% usage, while du says only 40% is in use. when i looked up on this, i ...
0
votes
1answer
71 views

why are /media and /home /mnt/home so large?

I am trying to get hplip-3.14.10 on a desktop. I found out that the setup returns a make command failed with status code 2 which is caused by insufficient disk space. I used disk usage analyzer to ...
1
vote
2answers
68 views

du command combined with find -mmin

I want to have an idea of how much archivelogs the database is generating daily, so I did: find /u02/archivelog -mmin -1440 | du -sh and got 220GB, which is the total size of all files in that ...
0
votes
2answers
47 views

Disk usage on another filesystem

I have a directory on my ext4 partition with lots of rather small files. How can I figure out how much space would they use if I copy them to a file system with another cluster size (without actually ...
4
votes
1answer
242 views

File size shown by “du -k” is different in different file systems (PRAMFS and FLASH)

I have a file xyz.log which is of size 1.72MB. In FLASH file system: If I run du -k xyz.log output is 1761 xyz.log. I copied the same file to RAM storage and run the du -k xyz.log output is 221 ...