LVM Question

[Waldher, Travis R]

> -----Original Message-----
> From: Mark McCulligh [mailto:mmcculli at visualtech.ca]
> >
> >
> Using building Web Servers or Email Servers, for the /home using came
> grow fast (sometimes make a /www folder).  I was just wondering why in
> Red Hat's manual they would create a LVM Volume Group, then in the
> Logical Volumes they add a fixed /home directory?  Because the /home
can
> grow the most would not it be better to have it under the / Logical
> Volume for you do not run out of space. Just a little puzzled by Red
> Hat's Example.
> 

The reason being...

If /home is actually under the / filesystem the users can fill up your
root filesystem. Which is bad.

/home should be it's own LVM partition

My filesystems are actually:

/dev/cciss/c0d0p1	512M	20M	439M	5%	/boot
/dev/vg00/lvol1   2048M	254M	1.7G	14%	/
/dev/vg00/lvol2	512M	8.1M	463M	2%	/home
/dev/vg00/lvol3	1024M	0	1007M	0%	/dev/shm
/dev/vg00/lvol4	2048M	76M	1.8G	4%	/var
/dev/vg00/lvol6	2048M	33M	1.9G	2%	/tmp
/dev/vg00/lvol7	7168M	1.9G	4.8G	29%	/usr

This keeps my root filesystem safe.

Also, it's not *easy* to extend your root filesystem, unless that
ext2online feature is now working again/properly.  Even then, I can't
remember if you could actually extend the root filesystem.

But you could extend /var, /home, /usr, /tmp, etc. with much adoo.