Hi, According to the LVM man page, the VGDA (Volume Group Descriptor Area) holds the metadata responsible for keeping information about the LVs. However, it is contained in the PVs. Why does the VGDA contain both LV descriptors and PE descriptors? Shouldn't it just have PE descriptors and leave the LV descriptors to the volume group? Also, when booting, what makes the kernel know that there are VGs and LVs? Does it look at the type of the partition and if it detects that it's a PV, extract the VGDA to help it build this information? If this is so, how does it deal with entire harddisks. For example, if I run the command: pvcreate /dev/sdd how would the kernel know that this is a PV?. Finally, where exactly is the VGDA information held?. Thanks for your time. ______________________________________________________ Click here to donate to the Hurricane Katrina relief effort. http://store.yahoo.com/redcross-donate3/ _______________________________________________ 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/
