On Thu, Mar 19, 2009 at 9:43 PM, Stefan Monnier <monnier@iro.umontreal.ca> wrote: >> I would like to know if there is any means currently to know the complete >> geometry of a LVM volume. >> e.g, If a volume has 3 PV(targets). >> So, we should be able to extract some information like. >> Name of Volume. >> Name of Volume Group. >> Name, Range and size for each of the Physical devices involved. > [...] >> We do maintain these informations inside the kernel, We should atleast >> have an ioctl or sysfs based interface to extract >> these information. > > Actually, IIUC only part of this info is kept in the kernel. > Intuitively, I'd expect that only the set of LVs, along with their size > (and mapping to physical blocks) is kept in the kernel, whereas all the > names are not, and neither are the volume groups. > Thats true. We only meant the target and maps related informations. > > Stefan > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > -- Regards, Sandeep. “To learn is to change. Education is a process that changes the learner.” _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
