Unable to write to disk but disk isn't full
I can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've got plenty of room:
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 30G 14G 15G 48% /
udev 984M 4.0K 984M 1% /dev
tmpfs 399M 668K 399M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 997M 0 997M 0% /run/shm
All of the results I find for "can't write to disk" are about legitimately full disks. I don't even know where to start here. The problem appeared out of nowhere this morning.
PHP's last log entry is "failed: No space left on device (28)". Vim says "Unable to open (file) for writing". Other applications give similar errors.
After deleting ~1gb just to be sure, the problem remains. I've also rebooted. Ubuntu 12.04
filesystem files disk
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
bumped to the homepage by Community♦ 10 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
|
show 3 more comments
I can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've got plenty of room:
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 30G 14G 15G 48% /
udev 984M 4.0K 984M 1% /dev
tmpfs 399M 668K 399M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 997M 0 997M 0% /run/shm
All of the results I find for "can't write to disk" are about legitimately full disks. I don't even know where to start here. The problem appeared out of nowhere this morning.
PHP's last log entry is "failed: No space left on device (28)". Vim says "Unable to open (file) for writing". Other applications give similar errors.
After deleting ~1gb just to be sure, the problem remains. I've also rebooted. Ubuntu 12.04
filesystem files disk
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
bumped to the homepage by Community♦ 10 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
what is the exact error message?
– mchid
Oct 25 '15 at 16:13
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
1
Edit your question and add the output ofsudo lsof -nP +L1
– A.B.
Oct 25 '15 at 16:32
2
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02
|
show 3 more comments
I can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've got plenty of room:
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 30G 14G 15G 48% /
udev 984M 4.0K 984M 1% /dev
tmpfs 399M 668K 399M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 997M 0 997M 0% /run/shm
All of the results I find for "can't write to disk" are about legitimately full disks. I don't even know where to start here. The problem appeared out of nowhere this morning.
PHP's last log entry is "failed: No space left on device (28)". Vim says "Unable to open (file) for writing". Other applications give similar errors.
After deleting ~1gb just to be sure, the problem remains. I've also rebooted. Ubuntu 12.04
filesystem files disk
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
I can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've got plenty of room:
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 30G 14G 15G 48% /
udev 984M 4.0K 984M 1% /dev
tmpfs 399M 668K 399M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 997M 0 997M 0% /run/shm
All of the results I find for "can't write to disk" are about legitimately full disks. I don't even know where to start here. The problem appeared out of nowhere this morning.
PHP's last log entry is "failed: No space left on device (28)". Vim says "Unable to open (file) for writing". Other applications give similar errors.
After deleting ~1gb just to be sure, the problem remains. I've also rebooted. Ubuntu 12.04
filesystem files disk
filesystem files disk
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
edited Oct 25 '15 at 17:25
Tim
20.1k1586141
20.1k1586141
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
asked Oct 25 '15 at 16:01
felwithefelwithe
174514
174514
bumped to the homepage by Community♦ 10 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 10 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
what is the exact error message?
– mchid
Oct 25 '15 at 16:13
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
1
Edit your question and add the output ofsudo lsof -nP +L1
– A.B.
Oct 25 '15 at 16:32
2
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02
|
show 3 more comments
what is the exact error message?
– mchid
Oct 25 '15 at 16:13
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
1
Edit your question and add the output ofsudo lsof -nP +L1
– A.B.
Oct 25 '15 at 16:32
2
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02
what is the exact error message?
– mchid
Oct 25 '15 at 16:13
what is the exact error message?
– mchid
Oct 25 '15 at 16:13
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
1
1
Edit your question and add the output of
sudo lsof -nP +L1– A.B.
Oct 25 '15 at 16:32
Edit your question and add the output of
sudo lsof -nP +L1– A.B.
Oct 25 '15 at 16:32
2
2
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02
|
show 3 more comments
1 Answer
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Answered in edit by OP:
Edit: It turned out that I was out of inodes even though I wasn't out of disk space. Problem was solved here:
You are out of inodes. It's likely that you have a directory somewhere with
many very small files.
What are inodes?
Ext4 has a theoretical limit of 4 billion files, which is restricted by the size of inode number it uses to identify each file (ext4 uses 32-bit inode numbers). However, as John says, Ext4 allocates inode tables statically, so the actual limit is set when the file system is created.
Source
edited Apr 13 '17 at 12:23
Community♦
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
add a comment |
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Answered in edit by OP:
Edit: It turned out that I was out of inodes even though I wasn't out of disk space. Problem was solved here:
You are out of inodes. It's likely that you have a directory somewhere with
many very small files.
What are inodes?
Ext4 has a theoretical limit of 4 billion files, which is restricted by the size of inode number it uses to identify each file (ext4 uses 32-bit inode numbers). However, as John says, Ext4 allocates inode tables statically, so the actual limit is set when the file system is created.
Source
edited Apr 13 '17 at 12:23
Community♦
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
add a comment |
Answered in edit by OP:
Edit: It turned out that I was out of inodes even though I wasn't out of disk space. Problem was solved here:
You are out of inodes. It's likely that you have a directory somewhere with
many very small files.
What are inodes?
Ext4 has a theoretical limit of 4 billion files, which is restricted by the size of inode number it uses to identify each file (ext4 uses 32-bit inode numbers). However, as John says, Ext4 allocates inode tables statically, so the actual limit is set when the file system is created.
Source
edited Apr 13 '17 at 12:23
Community♦
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
add a comment |
Answered in edit by OP:
Edit: It turned out that I was out of inodes even though I wasn't out of disk space. Problem was solved here:
You are out of inodes. It's likely that you have a directory somewhere with
many very small files.
What are inodes?
Ext4 has a theoretical limit of 4 billion files, which is restricted by the size of inode number it uses to identify each file (ext4 uses 32-bit inode numbers). However, as John says, Ext4 allocates inode tables statically, so the actual limit is set when the file system is created.
Source
edited Apr 13 '17 at 12:23
Community♦
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
Answered in edit by OP:
Edit: It turned out that I was out of inodes even though I wasn't out of disk space. Problem was solved here:
You are out of inodes. It's likely that you have a directory somewhere with
many very small files.
What are inodes?
Ext4 has a theoretical limit of 4 billion files, which is restricted by the size of inode number it uses to identify each file (ext4 uses 32-bit inode numbers). However, as John says, Ext4 allocates inode tables statically, so the actual limit is set when the file system is created.
Source
edited Apr 13 '17 at 12:23
Community♦
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
edited Apr 13 '17 at 12:23
Community♦
1
1
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
answered Oct 25 '15 at 17:28
TimTim
20.1k1586141
20.1k1586141
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what is the exact error message?
– mchid
Oct 25 '15 at 16:13
@mchid it depends on the application. PHP fails with "failed: No space left on device (28)". Trying to write a file with vim says "unable to open swap file, writing impossible", then "can't open file for writing".
– felwithe
Oct 25 '15 at 16:15
are you using btrfs or something?
– mchid
Oct 25 '15 at 16:17
1
Edit your question and add the output of
sudo lsof -nP +L1– A.B.
Oct 25 '15 at 16:32
2
You should write an answer. Give me a ping for an upvote.
– A.B.
Oct 25 '15 at 17:02