If u want reduce logical volume u should unmount partition. if u want extend logical volume unmounting in not necessary. i would like to suggest some steps for reduce & extend. 1. for reduce logical volume for ext3 file system. A.*umount /home B.**e2fsck -f /dev/mapper/myhost-home C.**resize2fs -p /dev/mapper/myhost-home 3G D.**lvreduce --size 4G /dev/mapper/myhost-home* E.*resize2fs /dev/mapper/myhost-home F.**mount /home* 2 Lvextend *lvextend -L+1G /dev/myvg/homevo * *resize2fs /dev/myvg/homevol * On Fri, Mar 26, 2010 at 8:33 PM, Mike Burger <mburger@xxxxxxxxxxxxxxxxx>wrote: > > > Rob wrote: > >> Ah. The other email, IE the one I replied to, didn't have Task 2, just > >> task 1. > >> > >> I'm not sure if shrinking online is supported or not... > >> > > I, for one, would *not* write code to allow that. The chances of toasting > > your f/s, and or files on it, are far too close to 1:1. > > > > mark > >> Rob Marti > > It can be done, if the tools are smart enough to do it. > > On the AIX systems I manage, under JFS2, IBM's LVM tool can and will > shrink the filesystems while online. I believe that it's written to do so > as long as the amount of space you wish to remove is actually free. > > On the other hand, I always check those filesystems to make sure that the > requisite amount of space is free prior to shrinking the filesystem. > Better to be safe than sorry. > > -- > Mike Burger > http://www.bubbanfriends.org > > Visit the Dog Pound II BBS > telnet://dogpound2.citadel.org or http://dogpound2.citadel.org > > To be notified of updates to the web site, visit: > > https://www.bubbanfriends.org/mailman/listinfo/site-update > > or send a blank email message to: > > site-update-subscribe@xxxxxxxxxxxxxxxxx > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
