Df reporting double size of du after fsck & reboot Post: 303005162

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Operating Systems Solaris Df reporting double size of du after fsck & reboot Post 303005162 by lcoreyl on Saturday 14th of October 2017 11:08:20 AM

10-14-2017

Registered User

Fix:

Solved

I didn't see this in other threads, so my problem was someone copied a bunch of files into a folder that should just be used as a mounting point. Once mounted those files and folders are hidden to du, but df still sees it. Essentially, i did this:

Code:

# umount /dev/dsk/c0t1d0s4
#du -ak /usr/me | sort -nr | more
780000 /usr/me
400001  /usr/me/data
400000  /usr/me/data/hiddenstuff
#rm /usr/me/data/*
#mount /dev/dsk/c0t1d0s4 /usr/me/data
#df -k
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/dsk/c0t1d0s0      91813   19880   62752    25%    /
/dev/dsk/c0t1d0s6     752553  377132  315217    55%    /usr
/proc                      0       0       0     0%    /proc
fd                         0       0       0     0%    /dev/fd
mnttab                     0       0       0     0%    /etc/mnttab
/dev/dsk/c0t1d0s3     245943   35200  186149    16%    /var
swap                  548972       8  548964     1%    /var/run
swap                  548972       8  548964     1%    /tmp
/dev/dsk/c0t1d0s7       1163       9    1038     1%    /scratch
/dev/dsk/c0t1d0s5     963333  380000   570000    40%    /usr/me
/dev/dsk/c0t1d0s4    1587331  618652  921060    41%    /usr/me/data

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LEARN ABOUT LINUX

devnm

devnm(1M)                                                 System Administration Commands                                                 devnm(1M)

NAME

       devnm - device name

SYNOPSIS

       /usr/sbin/devnm name [name...]

DESCRIPTION

       The devnm command identifies the special file associated with the mounted file system where the argument name resides. One or more name can
       be specified.

EXAMPLES

       Example 1: Using the devnm Command

       Assuming that /usr is mounted on /dev/dsk/c0t3d0s6, the following command :

       /usr/sbin/devnm /usr

       produces:

       /dev/dsk/c0t3d0s6 /usr

FILES

       /dev/dsk/*

       /etc/mnttab

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       mnttab(4), attributes(5)

SunOS 5.10                                                          14 Sep 1992                                                          devnm(1M)