11-28-2001
Disk formating
i have to repartition some of my filesystems ...
I have just one HDD ....
df -k gives this :-
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c0t0d0s0 830107 45532 726468 6% /
/dev/dsk/c0t0d0s1 1987399 785728 1142050 41% /usr
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
mnttab 0 0 0 0% /etc/mnttab
/dev/dsk/c0t0d0s3 1032327 13352 957036 2% /var
swap 644472 0 644472 0% /var/run
/dev/dsk/c0t0d0s4 8935901 4957835 3888707 57% /data
/dev/dsk/c0t0d0s6 96975 18367 68911 22% /tmp
/dev/dsk/c0t0d0s5 4032142 585127 3406694 15% /opt
/dev/dsk/c0t0d0s7 385463 346418 499 100% /export/home
ocd:/data 8769437 7188698 1493045 83% /ocd
i have to reduce space in /opt and give it to /export/home ...
Can I do this without harming the root and /usr partitions ...
DP
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df(1B) SunOS/BSD Compatibility Package Commands df(1B)
NAME
df - display status of disk space on file systems
SYNOPSIS
/usr/ucb/df [-a] [-i] [-t type] [filesystem...] [filename...]
DESCRIPTION
The df utility displays the amount of disk space occupied by currently mounted file systems, the amount of used and available space, and
how much of the file system's total capacity has been used.
If arguments to df are path names, df produces a report on the file system containing the named file. Thus `df .' shows the amount of
space on the file system containing the current directory.
OPTIONS
The following options are supported:
-a Report on all filesystems including the uninteresting ones which have zero total blocks (that is, auto-mounter).
-i Report the number of used and free inodes. Print ` * ' if no information is available.
-t type Report on filesystems of a given type (for example, nfs or ufs).
EXAMPLES
Example 1: Using df
A sample of output for df looks like:
example% df
Filesystem kbytes used avail capacity Mounted on
sparky:/ 7445 4714 1986 70% /
sparky:/usr 42277 35291 2758 93% /usr
Note that used+avail is less than the amount of space in the file system (kbytes); this is because the system reserves a fraction of the
space in the file system to allow its file system allocation routines to work well. The amount reserved is typically about 10%; this can be
adjusted using tunefs (see tunefs(1M)). When all the space on a file system except for this reserve is in use, only the super-user can
allocate new files and data blocks to existing files. When a file system is overallocated in this way, df can report that the file system
is more than 100% utilized.
FILES
/etc/mnttab List of file systems currently mounted
/etc/vfstab List of default parameters for each file system
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO
du(1), quot(1M), tunefs(1M), mnttab(4), attributes(5)
SunOS 5.10 14 Sep 1992 df(1B)