On Thu, Jul 28, 2005 at 01:13:50PM -0400, Ming Zhang wrote: > On Thu, 2005-07-28 at 11:45 -0500, AJ Lewis wrote: > > On Thu, Jul 28, 2005 at 11:17:41AM -0400, Ming Zhang wrote: > > > I think this is a very common question but i can not find the answer. > > > any idea on how to access the partition on these lv since no device > > > node? > > > > > > > > > [root fc3-i386-2 ~]# fdisk /dev/vg1/v1 -l > > > > > > Disk /dev/vg1/v1: 469 MB, 469762048 bytes > > > 255 heads, 63 sectors/track, 57 cylinders > > > Units = cylinders of 16065 * 512 = 8225280 bytes > > > > > > Device Boot Start End Blocks Id System > > > /dev/vg1/v1p1 1 13 104391 83 Linux > > > /dev/vg1/v1p2 14 57 353430 83 Linux > > > > the problem is that we export a LV via iscsi to a remote box and become > a scsi disk. so it is partitioned and utilized. then it does have > partition on it. even it is exported to a linux box, u possibly will > use /dev/sdx1 instead of directly use /dev/sdx, rite? Ahh - I see. Well, on the node exporting the LVs, you don't access it. I dunno if kpartx or some other partitioning tool could do it - it might. But as far as the standard partion handling code goes, LVs don't exist. I know why you're doing it this way - I don't know why you want to access the partitions on the exporting (target) node. Do you really need to? > > You don't. Don't put partition tables on LVs. The whole point of using > > LVM is you don't need to partition anymore, and your block devices can be > > dynamic. If you another block devices, you lvcreate it. If you don't > > have enough space in your VG, you add a PV to it, then lvcreate the new > > block device. Have you read through the HOWTO referenced below? > > i can not see this HOWTO, where u referenced it? It's at the bottom of all messages that go to the linux-lvm ML - http://tldp.org/HOWTO/LVM-HOWTO/ -- AJ Lewis Voice: 612-638-0500 Red Hat E-Mail: alewis redhat com One Main Street SE, Suite 209 Minneapolis, MN 55414 Current GPG fingerprint = D9F8 EDCE 4242 855F A03D 9B63 F50C 54A8 578C 8715 Grab the key at: http://people.redhat.com/alewis/gpg.html or one of the many keyservers out there...
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