-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hi, I have a software raid 5 in linud 2.6.3 and I created a lvm on. Actually it works, but there some strange things. Perhaps someone can point me out why. Basic: lvm vesion: ii lvm2 2.00.08-4 The Linux Logical Volume Manager ii lvm-common 1.5.12 The Logical Volume Manager for Linux (common files raid version: ii raidtools2 1.00.3-5 Utilities to support 'new-style' RAID disks md admin version ii mdadm 1.4.0-3 Manage MD devices aka Linux Software Raid my raidtab: # 4 x 160GB Raid 5, no spare raiddev /dev/md0 raid-level 5 nr-raid-disks 4 nr-spare-disks 0 persistent-superblock 1 chunk-size 64 parity-algorithm left-symmetric # Spare disks for hot reconstruction # no the raid devices # Alpha device /dev/sda1 raid-disk 0 # Beta device /dev/sdb1 raid-disk 1 # Gamma device /dev/sdc1 raid-disk 2 # Delta device /dev/sdd1 raid-disk 3 [the partitions are 'fd' type: Linux auto raid] After I created the physical volume with 'pvcreate /dev/md0' I got this output with pvdisplay: ludivinus:~# pvdisplay ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ --- Physical volume --- ~ PV Name /dev/cciss/c1d0p4 ~ VG Name TequilaData ~ PV Size 60.15 GB / not usable 0 ~ Allocatable yes ~ PE Size (KByte) 4096 ~ Total PE 15398 ~ Free PE 38 ~ Allocated PE 15360 ~ PV UUID eqEPJ1-YbVY-qhFQ-Fm63-9cC1-0UwZ-PAssTp ~ --- NEW Physical volume --- ~ PV Name /dev/md0 ~ VG Name ~ PV Size 457.99 GB ~ Allocatable NO ~ PE Size (KByte) 0 ~ Total PE 0 ~ Free PE 0 ~ Allocated PE 0 ~ PV UUID jlq1y1-YpjZ-AU3Z-Iibp-0EkG-DzZj-5IHGhq ~ --- NEW Physical volume --- ~ PV Name /dev/sdd1 ~ VG Name ~ PV Size 457.99 GB ~ Allocatable NO ~ PE Size (KByte) 0 ~ Total PE 0 ~ Free PE 0 ~ Allocated PE 0 ~ PV UUID *U|-?c-?6??I-?n??j-5IHGhq its kinda strange, so I removed /dev/sdd1. ludivinus:~# pvremove /dev/sdd1 ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ Incorrect metadata area header checksum ~ Labels on physical volume "/dev/sdd1" successfully wiped and after that I pvdisplay showed the correct output. But after I created the volume group and the logical volume I had this "ghost volume" back again. So I removed it again. my initial tests look good. there is no problem. With my first test on this box, I created a raid just with the bare disks without partitions, I had other problems, that he suddenly had a partition in sda and sdd with the size of the right which screwed lvm totaly up. Anyway my question is, did I do something wrong? Missed I something out? I couldn't find any good description for lvm on raid5. The only one I could find, didn't sepcify anything else. - -- Clemens Schwaighofer - IT Engineer & System Administration ========================================================== Tequila Japan, 6-17-2 Ginza Chuo-ku, Tokyo 104-8167, JAPAN Tel: +81-(0)3-3545-7703 Fax: +81-(0)3-3545-7343 http://www.tequila.jp ========================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAQrY9jBz/yQjBxz8RAvSFAKCKy9Vgzr3ZMSHkcY35d5MS9f8YGACfRQYu rqZlE7SnIYii2w9QukfQLrk= =xtAZ -----END PGP SIGNATURE----- _______________________________________________ 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/
