Hello, I work for HP, the developer of LVM... I am a Unix support engineer... LVM will allow you to vgextend up to 255 disks/devices into a vg and create up to 255 lvols. You can lvextend a lvol as long as you have free pe available in the vg. However, if you modify an existing lun, extend it, etc, I do not believe lvm will recognize it, at that is the case in HP Unix. The best course of action when using lvm and vg's is to vgextend another disk/lun into the vg and lvextend the lvol to the needed size.... Hope this helps.... Nicholas -----Original Message----- From: linux-lvm-admin@sistina.com [mailto:linux-lvm-admin@sistina.com] On Behalf Of Jens Hoffrichter Sent: Wednesday, May 22, 2002 6:12 AM To: linux-lvm@sistina.com Subject: [linux-lvm] Physical volume size changed Hi! We are using the LVM here in our company to manage our partitions and are really satisfied with the software, its really great to change partition sizes on the fly and similar :) We are using two VG, system and data. data consists of one physical volume, /dev/scsi/host2/bus0/target1/lun0/disc, which is the logical volume of a IBM ServeRaid SCSI Controller with 4 disks and a raid 5. This logical volume has 101.7 GB. Now we have extended the logical volume on the IBM ServeRaid by using 3 36 GB disks, so the logical volume on the raid controller now has 203.4 GB. I have issued a SCSI reset on the bus hoping that the LVM notices on the fly that the physical volume size has changed, but it doesn't recognize it. I have not rebooted yet, that is the other hope that the LVM recognizes the additional free space after the reboot, but I'm not sure. Are there other possibilities that the LVM recognizes that the PV size has changed? Or is there no hope at all? I would be really glad if somebody could give me some hints where to look. CU all, Jens -- GPG: 1024D/CF884D50 F2E8 F7FC F823 6464 4E9D EFAB 6EE9 8B9C CF88 4D50 ------------------------------------------------------------------------ Jens Hoffrichter / joho@hausboot.org / Joho@IRC / Fon: 0172/5376989 A dream is a wish your heart makes. (Seen on a parade in Walt Disney World) _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
