RE: [linux-lvm] lv extend

["S. Michael Denton" <smdenton@bellsouth.net>]

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Yes, printing the informative message may be a good idea as long as
it doesn't interfere with function (ie no 'hit enter to continue' or
anything like that). :)

On Monday, 05 February 2001 07:44, James [SMTP:james@fr.clara.net]
wrote:
> 
> Yes, I do have to agree. By reading the Doc I did quickly realize
> my error. The idea of printing a message is not bad though.
> 
> 
> On Mon, 5 Feb 2001, S. Michael Denton wrote:
> 
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> > 
> > Speaking as one with extensive experience with LVM on nearly
> > every major unix vendor, it is not a -problem- but more of a lack
> > of knowledge on the user/administrator's part.  As I recall, the
> > documentation clearly notes that a filesystem that resides on an
> > lv must be extended after extending the lv else the OS will not
> > address the newly-allocated space.  IMHO it would be a -very- bad
> > idea to automatically run ext2resize as not everyone uses ext2 on
> > lvm and I think repeated offers to ask if you want to resize this
> > ext2
> > filesystem (that perhaps isn't even a filesystem at all) would
> > get terribly annoying and NT-ish.  Also there's the issue with
> > reduction... if you reduce an lv, LVM (linux LVM is not different
> > than the other major unixes either) assumes that you have already
> > reduced any filesystems, tablespaces, etc that might be using
> > that space before you do the reduction.  Automatic reduction of a
> > filesystem can be extraordinarily dangerous.
> > 
> > Perhaps as a compromise it could be a configuration flag in some
> > lvm config file as to whether or not to automatically/offer
> > to/never resize filesystems after extension/reduction.
> > 
> > Just a thought...
> > 
> > On Monday, 05 February 2001 07:25, James
> > [SMTP:james@fr.clara.net] wrote:
> > > 
> > > That would be great :-)
> > > 
> > > On Mon, 5 Feb 2001, Tom Dawes-Gamble wrote:
> > > 
> > > > Hi,
> > > > 
> > > > 	This seems a Frequent problem we get it on HP-UX LVM too.
> > > > People do an lvextend and then wonder why the filesystem has
> > > > not grown to fill the lvol.
> > > > 
> > > > 	Perhaps a message like.
> > > > 
> > > > [root@ocalhost /root]# lvextend -l 256 /dev/vg01/lvol2
> > > > lvextend -- extending logical volume "/dev/vg01/lvol2" to 1
> > > > GB lvextend -- doing automatic backup of volume group "vg01"
> > > > lvextend -- logical volume "/dev/vg01/lvol2" successfully
> > > > extended  
> > > > 
> > > > Note:  You need to run a resize utility such as ext2resize
> > > > before 	the space is available in the file system.
> > > > 
> > > > [root@localhost /root]#
> > > > 
> > > > Or lvextend could check the mount table and offer to run
> > > > ext2resize for you.  If that seems like a neat idea I would
> > > > be willing to write the code.
> > > > 
> > > > Regards,
> > > > Tom.
> > > > 
> > > > > 
> > > > > James wrote:
> > > > > > 
> > > > > > Hello
> > > > > > 
> > > > > > Is it normal after growing an LV not to see the change
> > > > > > with df -h ? But it can be seen with vgdisplay -v ? 
> > > > > Did you also resize the filesystem? df shows filesystem
> > > > > sizes. If so, maybe a remount of the filesystem could help.
> > > > >  
> > > > > 
> > > > > Bye...
> > > > > 
> > > > > 	Dirk
> > > > > -- 
> > > > > Dirk Heinrichs		| Tel:	+49 (0)241 413 260
> > > > > QIS Systemhaus GmbH	| Fax:	+49 (0)241 413 2640
> > > > > Jülicher Str. 338b	| Mail:	heinrichs@qis-systemhaus.de
> > > > > D-52070 Aachen		| Web:	http://www.qis-systemhaus.de
> > > > > _______________________________________________
> > > > > linux-lvm mailing list
> > > > > linux-lvm@sistina.com
> > > > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > > > 
> > > > 
> > > > 
> > > > --
> > > >  int/* PROCEDURE DIVISION.*>*/b,g,l,n='/'/'/'<<2;extern void
> > > > printf();int main 
> > > >  (int
> > > > d,char**z){char*o,*c="%.9s%.7s%.7s\n";l=*(c+d+d)-*(c+d);g=*c-d
> > > > -l;b =l+n++; 
> > > >    o="  DISPLAY'tmdg@uksr'    '.hp.com'
> > > > *>"+g++;printf(c,o-b++,o+l,o);l=~++n; 
> > > >    o="  DISPLAY'http://www.itrc.hp.com/'
> > > > *>"+g++;printf(c,o-b++,o+l,o);exit();}
> > > > _______________________________________________
> > > > linux-lvm mailing list
> > > > linux-lvm@sistina.com
> > > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > > > 
> > > 
> > > _______________________________________________
> > > linux-lvm mailing list
> > > linux-lvm@sistina.com
> > > http://lists.sistina.com/mailman/listinfo/linux-lvm
> > 
> > 
> > Scott Denton
> > smdenton@bellsouth.net
> > EFnet Handle: SteelWyng
> > ICQ UIN: 24149258
> > AIM Screen Name: SteelWyng
> > 
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> > _______________________________________________
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> > 
> 
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Scott Denton
smdenton@bellsouth.net
EFnet Handle: SteelWyng
ICQ UIN: 24149258
AIM Screen Name: SteelWyng

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