Re: N00b Question: Logical Volume without a Logical Volume Group ?

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----- James Hawtin <oolon@ankh.org> wrote:
> Dan White wrote:
> >
> > I just experienced that.
> >
> > I had to reboot the machine to "see" the expanded LUN.
> > I used fdisk to make a partition out of the LUN expansion, but I had to reboot again before I could do anything further.
> > After the second reboot, I was able to make a PV out of the new partition, roll it into the existing VG and then expand the two test LV's I had previously created to utilize the new elbow room.
> >
> > This is on a RHEL 5.7 system.
> >
> > Is there a way to do this without the rebooting ?
> >
> >   
> Assuming the device is sda then
> 
> |echo 1 > /sys/block/sda/device/rescan|
> 
> However if that fails (and it can) only a reboot or removing the disk 
> driver module and reinstalling it will scan it correctly (possible if 
> you have a mix of local and san disk) however probably a reboot is easiler.
> 

OK.
How about the addition of a new LUN ?

A new device (/dev/sdb) should "appear", but I'd like to do it without rerbooting.

“Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.”
Bill Waterson (Calvin & Hobbes)

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