Hi, I am relatively new to lvm. I am using redhat enterprise 4, which uses "lvm2" as it default volume manager. We have storage devices (ie SAN) that combine 20-40 disks together into 4+ TB filesystems. We are investigating using lvm to manage these disks. The release notes for "rhel4 update 1" state that you _require_ a partition table to use lvm2: http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/release-notes/as-x86/RELEASE-NOTES-U1-x86-en.html >· Various issues with LVM2 on large devices are fixed in Red Hat >Enterprise Linux 4 Update 1. Do not use LVM2 on devices larger than 2 >TB prior to installing Update 1. > >As noted above, Red Hat requires that a partition table be written to >the block device, even when it is used as part of an LVM2 Volume Group. >In this case, you may create a single partition that spans the entire >device. Then, be sure to specify the full partition name (for example, >/dev/sda1, not /dev/sda), when you use the pvcreate and vgcreate >commands. According to the lvm HOWTO, lvm can manage disks _without_ partition tables. In fact I tested this and it appears to work. Do I reallly need to make partition tables on all my disks to use lvm2 ? What will happen if I don't use partition tables with lvm ? Thank-you in advance, -- Chris Hunter _______________________________________________ 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/
