Infrastructure Software

I have one Solaris 10 box and one of the mounted files system missing over 100GB of disk space. How can I find out where missing disk space go and how to fix it?

Below is output from the machine - the file system is /space, df output reported there is 135GB in /space and du output reported /space is 26GB - but /space is 100% capacity (0k available).

# uname -a
SunOS machinename 5.10 Generic_137111-08 sun4v sparc SUNW,Sun-Fire-T200

# id
uid=0(root) gid=0(root)

# df -h
Filesystem size used avail capacity Mounted on
/ 67G 63G 4.1G 94% /
/dev 67G 63G 4.1G 94% /dev
/space 135G 133G 0K 100% /space
proc 0K 0K 0K 0% /proc
ctfs 0K 0K 0K 0% /system/contract
mnttab 0K 0K 0K 0% /etc/mnttab
objfs 0K 0K 0K 0% /system/object
swap 50G 320K 50G 1% /etc/svc/volatile
/platform/SUNW,Sun-Fire-T200/lib/libc_psr/libc_psr_hwcap1.so.1
67G 63G 4.1G 94% /platform/sun4v/lib/libc_psr.so.1
/platform/SUNW,Sun-Fire-T200/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
67G 63G 4.1G 94% /platform/sun4v/lib/sparcv9/libc_psr.so.1
fd 0K 0K 0K 0% /dev/fd
swap 50G 64K 50G 1% /tmp
swap 50G 40K 50G 1% /var/run
nas1:/u02/Builds 234G 37G 198G 16% /opt/Builds
nas1:/u01/Share 781G 253G 528G 33% /opt/Share


# du -sh /space
26G /space

# df /space
/space (/space ): 2823568 blocks 16615113 files

# fuser -c /space
/space:
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