lvextend to increase /opt size

[AC]

My system is HP Itanium unix (B.11.23 U ia64).
I tried to increase /opt size in single user mode using
lvextend -L size_number /dev/vg00/lvolx

However, it can't be reflected when I execute "bdf" command
while it can be only reflected under SAM.

If I use the following command, it works in both SAM and "bdf"
extendfs /dev/vg00/lvolx

Would you please advise whether "extendfs" is necessary to make
the change effective. Thanks!

AC

[Doug Freyburger]

AC wrote:

>
> My system is HP Itanium unix (B.11.23 U ia64).
> I tried to increase /opt size in single user mode using
> lvextend -L size_number /dev/vg00/lvolx

Extending the logical volume extends the container but does
not extend the filesytem within that container.

> However, it can't be reflected when I execute "bdf" command
> while it can be only reflected under SAM.
>
> If I use the following command, it works in both SAM and "bdf"
> extendfs /dev/vg00/lvolx
>
> Would you please advise whether "extendfs" is necessary to make
> the change effective. Thanks!

Correct. Layers of the onion. Logical volume and filesystem
are at different layers. A logical volume is a container for
a filesystem. A filesystem is a container for files. An
inode is a container for blocks. A file is a container for
data.