how inode works Post: 302277460

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Operating Systems Solaris how inode works Post 302277460 by pupp on Friday 16th of January 2009 10:45:54 AM

01-16-2009

Registered User

ooo i've had some nighmares about inodes!!

you may want to leave your default inode (number of bytes per inode = nbpi) for now until you have a good idea what EXACTLY is going on this server. wrongly configured and you could waste space or run out of inodes rather quickly.

take a look at this link and it will show you some general calculations: Number of Inodes (Files) (System Administration Guide: Devices and File Systems) - Sun Microsystems

few more things. newfs (i assume you are looking at a ufs fs) will allow you to change your nbpi. growfs i believe will also change the number of inodes as the filesystem grows.

if you are curious, use `df -F ufs -o i` to see current free v. used inodes on a system.

output from my x86 box.

Code:

-bash-3.00# df -F ufs -o i
Filesystem             iused   ifree  %iused  Mounted on
/dev/dsk/c2d0s0        24035 2404573     1%   /
/dev/dsk/c2d0s6       151478 8345738     2%   /usr
/dev/dsk/c2d0s1        20052 2408556     1%   /var
/dev/dsk/c2d0s5        10358 7269642     0%   /opt
/dev/md/dsk/d0         74978 28503390     0%   /data
/dev/dsk/c2d0s7           67 8054525     0%   /export/home

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LEARN ABOUT CENTOS

matchpathcon_filespec_destroy

matchpathcon_checkmatches(3)				     SELinux API documentation				      matchpathcon_checkmatches(3)

NAME

       matchpathcon_checkmatches,  matchpathcon_filespec_add, matchpathcon_filespec_destroy, matchpathcon_filespec_eval - check and report whether
       any specification index has no matches with any inode. Maintenance and statistics on inode associations

SYNOPSIS

       #include <selinux/selinux.h>

       void matchpathcon_checkmatches(char *str);

       int matchpathcon_filespec_add(ino_t ino, int specind, const char *file);

       void matchpathcon_filespec_destroy(void);

       void matchpathcon_filespec_eval(void);

DESCRIPTION

       matchpathcon_checkmatches() checks whether any specification has no matches and reports them.  The str argument is used as a prefix for any
       warning messages.

       matchpathcon_filespec_add() maintains an association between an inode ino and a specification index specind, and checks whether a conflict-
       ing specification is already associated with the same inode (e.g. due to multiple hard links). If so, then it uses the latter  of  the  two
       specifications based on their order in the file context configuration. Returns the specification index used or -1 on error.

       matchpathcon_filespec_destroy() destroys any inode associations that have been added, e.g. to restart for a new filesystem.

       matchpathcon_filespec_eval() displays statistics on the hash table usage for the inode associations.

RETURN VALUE

       Returns zero on success or -1 otherwise.

SEE ALSO

       selinux(8), matchpathcon(3), matchpathcon_index(3), freecon(3), setfilecon(3), setfscreatecon(3)

sds@tycho.nsa.gov						 21 November 2009				      matchpathcon_checkmatches(3)

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