Re: LVM on dmraid breakage
Alasdair G Kergon <[email protected]>
| Newsgroups | gmane.linux.kernel.device-mapper.devel,gmane.linux.ataraid |
|---|---|
| Organization | Red Hat UK Ltd. Registered in England and Wales, number 03798903. Registered Office: Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE. |
| Message-ID | <[email protected]> |
On Wed, Aug 01, 2007 at 04:19:59PM -0400, Phillip Susi wrote: > I am investigating a bug report involving the combination of lvm and > dmraid, and it seems to me that the problem is that lvm is detecting the > underlying partition on the primary disk and accessing it directly > rather than going through the raid device made by dmraid. I think that > the problem is there is no facility for dmraid to "claim" the physical > disk so that lvm does not look at it, and also to have lvm scan the raid > device for physical volumes. LVM tries hard to 'do the right thing' in cases like this. If it's getting it wrong in some particular case, we need to fix it. I presume it gives you a warning message about the duplicate UUID? If this can be reproduced using the latest upstream source code release, please supply relevant details (lvm.conf, -vvvv traces & dmsetup output) - you can run 'lvm_dump.sh -a' (in the scripts dir) to capture this. Alasdair -- [email protected]