02-13-2008
how to get the file system size
I have the next code, and the output is incosistent, what is the problem:
free blocks: 1201595
block size: 4096
total size(free blocks * block size): 626765824
1201595 * 4096 not is 626765824, what's the problem???
#include <sys/statvfs.h>
#include <stdio.h>
int main(){
struct statvfs buffer;
int status;
int free_blk;
int blk_size;
status = statvfs("/", &buffer);
printf("free blocks: %u\n",buffer.f_bavail);
printf("block size: %u\n",buffer.f_bsize);
free_blk = buffer.f_bavail;
blk_size = buffer.f_bsize;
printf("total size: %u\n",free_blk*blk_size);
return 0;
}
Thks
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How to find the free size currently FileSystem has, on the disk mounted?
I know 'df' lists all the mounted disks, but I am interested to know details
for the filesystem, in which currently I am working. (7 Replies)
Discussion started by: videsh77
7 Replies
2. UNIX for Advanced & Expert Users
Good morning folks!
I'm new here.. trying to find an answer on how to resize filesystem. Need to add some space to c0t0d0s5, /var... Is it possible at all?
JV (9 Replies)
Discussion started by: jvinn
9 Replies
3. AIX
Dear ALL
Today I faced one problem in the file system, during invoking the command #df -k , I saw /usr reached to 95% Used, could any one give advice ?
thanks & regarded (7 Replies)
Discussion started by: magasem
7 Replies
4. Solaris
Hi
Can anyone explain me how to increase the filesystem size. We can do it when the system is running? It needs an reboot? (8 Replies)
Discussion started by: rogerben
8 Replies
5. AIX
Hi all,
we are usig aix 4.3 and i need to increase the size of "/u01" file sytem which is mounted on logical volume "lv00", but "/u01" file system size is 9 GB and logical volume "lvoo" size 9 GB.how do i increase the size of /u01.do i increase the size of logical volume "lv00" and then... (2 Replies)
Discussion started by: younusdba
2 Replies
6. Solaris
Hi,
We currently have an Oracle database running and it is creating lots of processes in the /proc directory that are 1000M in size. The size of the /proc directory is now reading 26T. How can this be if the root file system is only 13GB?
I have seen this before we an Oracle temp file... (6 Replies)
Discussion started by: sparcman
6 Replies
7. Shell Programming and Scripting
When I do df -h, I see that one of my partitions is out of space.
Then when I do du -h, I get thousands of files. How do I only look at files over a specific size. I want directories over 500m to be returned only. (2 Replies)
Discussion started by: guessingo
2 Replies
8. Shell Programming and Scripting
Dears,
the output of this command
df -h | tr -s ' ' | cut -f5 -d' '
is
capacity
24%
0%
0%
0%
0%
1%
0%
24%
24%
0%
93%
1% (4 Replies)
Discussion started by: xxmasrawy
4 Replies
9. AIX
Hi,
I'd like to know how can I figure out my disk space area on AIX machine, for example to the situation of ( df -g ) which I have in my system :
the area used by (/opt/oracle) file system is (98%) now.
the free area on (/opt/oracle) is (0.75) now.
the total size in Gigabyte... (1 Reply)
Discussion started by: arm
1 Replies
10. HP-UX
Dear Friends,
I would like to increase the size of a file system from 10GB to 15GB.
System is runing on HP-UX 11.31.
Please help in the matter.
Regards,
Bhagawati Pandey (3 Replies)
Discussion started by: BPANDEY
3 Replies
LEARN ABOUT ULTRIX
icheck
icheck(8) System Manager's Manual icheck(8)
Name
icheck - check inode consistency
Syntax
/etc/icheck [ -s ] [ -b numbers ] [ filesystem ]
Description
The command is obsoleted for normal consistency checking by
The command examines a file system, builds a bit map of used blocks, and compares this bit map against the free list maintained on the file
system. If the file system is not specified, a set of default file systems is checked. The normal output of includes a report of:
o The total number of files and the numbers of regular, directory, block special and character special files.
o The total number of blocks in use and the numbers of single-, double-, and triple-indirect blocks and directory blocks.
o The number of free blocks.
o The number of blocks missing, that is, not in any file nor in the free list.
The option causes to ignore the actual free list and reconstruct a new one by rewriting the super-block of the file system. The file sys-
tem should be dismounted while this is done; if this is not possible (for example if the root file system has to be salvaged) care should
be taken that the system is quiescent and that it is rebooted immediately afterwards so that the old, bad in-core copy of the super-block
will not continue to be used. Notice also that the words in the super-block which indicate the size of the free list and of the i-list are
believed. If the super-block has been curdled these words will have to be patched. The option causes the normal output reports to be sup-
pressed.
Following the option is a list of block numbers; whenever any of the named blocks turns up in a file, a diagnostic is produced.
The command is faster if the raw version of the special file is used, since it reads the i-list many blocks at a time.
Diagnostics
For duplicate blocks and bad blocks (which lie outside the file system) announces the difficulty, the i-number, and the kind of block
involved. If a read error is encountered, the block number of the bad block is printed and considers it to contain 0. `Bad freeblock'
means that a block number outside the available space was encountered in the free list. `n dups in free' means that n blocks were found in
the free list which duplicate blocks either in some file or in the earlier part of the free list.
Restrictions
Since is inherently two-pass in nature, extraneous diagnostics may be produced if applied to active file systems.
It believes even preposterous super-blocks and consequently can get core images.
Files
Default file systems vary with installation.
See Also
fs(5), clri(8), dcheck(8), fsck(8), ncheck(8)
icheck(8)