Re: [linux-lvm] Re: LVM on dmraid breakage
Luca Berra <[email protected]>
| Newsgroups | gmane.linux.kernel.device-mapper.devel,gmane.linux.ataraid,gmane.linux.lvm.general |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Aug 02, 2007 at 11:45:53AM +0100, Bryn M. Reeves wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >Luca Berra wrote: >> Two things come to mind >> 1) dmraid should use ioctl BLKPG_DEL_PARTITION, to clean up any eventual >> partition table on component devices >> >> 2) lvm tool filter could be modified to check if a device has been >> already claimed by device-mapper. >> > >But device-mapper already opens devices exclusively when a target claims >them. No, it does not, sorry [root@localhost ~]# dmsetup create foobar 0 281329664 linear /dev/md2 0 [root@localhost ~]# dmsetup table foobar: 0 281329664 linear 9:2 0 [root@localhost ~]# dmsetup create foobar1 0 281329664 linear /dev/md2 0 [root@localhost ~]# dmsetup create foobar2 0 281329664 linear /dev/md2 0 [root@localhost ~]# dmsetup create foobar2 0 281329664 linear /dev/md2 0 [root@localhost ~]# dmsetup table foobar3: 0 281329664 linear 9:2 0 foobar2: 0 281329664 linear 9:2 0 foobar1: 0 281329664 linear 9:2 0 foobar: 0 281329664 linear 9:2 0 L. -- Luca Berra -- [email protected] Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \