Hi, We've been cleaning up some of our storage recently and migrating to new disks etc. when I came across this issue. I've re-allocated some old storage back to a server as a new array, but lvm is refusing to allow the LUN to participate. Here's what I see: [root@office ~]# pvcreate /dev/mpath/backup1 Physical volume "/dev/mpath/backup1" successfully created [root@office ~]# pvdisplay /dev/mpath/backup1 "/dev/mpath/backup1" is a new physical volume of "2.93 TB" --- NEW Physical volume --- PV Name /dev/mpath/backup1 VG Name PV Size 2.93 TB Allocatable NO PE Size (KByte) 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID ipTgcI-kjdJ-Aucx-cUVs-TWKr-wAFO-Rkd0u8 Thinking it's somehow mussed up the labelling, I had a quick look at the disk header: [root@office ~]# dd if=/dev/mpath/backup1 bs=1k count=1 | cat -v - ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@LABELONE^A^@^@^@^@^@^@^@M-Tl^LM-z ^@^@^@LVM2 001ipTgcIkjdJAucxcUVsTWKrwAFORkd0u8^@^@^@^@M-n^B^@^@^@^@^C^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^P^@^@^@^@^@^@^@M-p^B^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@1+0 records in 1+0 records out 1024 bytes (1.0 kB) copied, 0.000809 seconds, 1.3 MB/s Given that it looks, well, 'ok' to me, I thought I'd 'pvremove' it and validate that the disk is empty. It was (^@'s all the way, for the first 10MB at least), and re-add it. New UUID, but basically the same. So, weird. Why is the 'pvcreate' seeing the new LUN, seeing that it is 2.93TB, but not creating any PE's for use. Anybody have any idea what I should try next? Stuart J. Browne Senior Unix Administrator, Network Administrator, Database Administrator AusRegistry Pty Ltd Level 8, 10 Queens Road Melbourne. Victoria. Australia. 3004. Ph: +61 3 9866 3710 Fax: +61 3 9866 1970 Email: stuart.browne@ausregistry.com.au Web: www.ausregistry.com.au The information contained in this communication is intended for the named recipients only. It is subject to copyright and may contain privileged and/or confidential information. If you are not an intended recipient you must not use, copy, distribute or take any action in reliance on it. If you have received this communication in error, please delete all copies from your system and notify us immediately.
[root@office ~]# pvcreate -vvvv /dev/mpath/backup1 #lvmcmdline.c:1089 Processing: pvcreate -vvvv /dev/mpath/backup1 #lvmcmdline.c:1092 O_DIRECT will be used #config/config.c:994 Setting global/locking_type to 1 #config/config.c:994 Setting global/wait_for_locks to 1 #locking/locking.c:240 File-based locking selected. #config/config.c:971 Setting global/locking_dir to /var/lock/lvm #libdm-common.c:430 Preparing SELinux context for /var/lock/lvm to system_u:object_r:lvm_lock_t. #libdm-common.c:433 Resetting SELinux context to default value. #config/config.c:977 metadata/pvmetadataignore not found in config: defaulting to n #config/config.c:999 metadata/pvmetadatasize not found in config: defaulting to 255 #config/config.c:999 metadata/pvmetadatacopies not found in config: defaulting to 1 #locking/file_locking.c:235 Locking /var/lock/lvm/P_orphans WB #libdm-common.c:430 Preparing SELinux context for /var/lock/lvm/P_orphans to system_u:object_r:lvm_lock_t. #locking/file_locking.c:141 _do_flock /var/lock/lvm/P_orphans:aux WB #locking/file_locking.c:141 _do_flock /var/lock/lvm/P_orphans WB #locking/file_locking.c:51 _undo_flock /var/lock/lvm/P_orphans:aux #libdm-common.c:433 Resetting SELinux context to default value. #ioctl/libdm-iface.c:2005 dm version OF [16384] #ioctl/libdm-iface.c:2005 dm status (253:3) OF [16384] #device/dev-io.c:495 Opened /dev/mpath/backup1 RO O_DIRECT #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #filters/filter-composite.c:31 Using /dev/mpath/backup1 #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #label/label.c:184 /dev/mpath/backup1: No label detected #device/dev-io.c:541 Closed /dev/mpath/backup1 #ioctl/libdm-iface.c:2005 dm status (253:3) OF [16384] #device/dev-io.c:495 Opened /dev/mpath/backup1 RO O_DIRECT #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #filters/filter-composite.c:31 Using /dev/mpath/backup1 #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_EXCL O_DIRECT #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #ioctl/libdm-iface.c:2005 dm status (253:3) OF [16384] #device/dev-io.c:495 Opened /dev/mpath/backup1 RO O_DIRECT #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:541 Closed /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #filters/filter-composite.c:31 Using /dev/mpath/backup1 #device/dev-io.c:268 /dev/mpath/backup1: size is 6291456000 sectors #config/config.c:994 Setting devices/data_alignment to 0 #config/config.c:994 Setting devices/default_data_alignment to 0 #metadata/metadata.c:126 /dev/mpath/backup1: Setting PE alignment to 128 sectors. #metadata/metadata.c:159 /dev/mpath/backup1: Setting PE alignment offset to 0 sectors. #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:730 Wiping /dev/mpath/backup1 at sector 8 length 8 sectors #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #metadata/metadata.c:1499 Set up physical volume for "/dev/mpath/backup1" with 6291456000 available sectors #label/label.c:203 Scanning for labels to wipe from /dev/mpath/backup1 #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #metadata/metadata.c:1508 Zeroing start of device /dev/mpath/backup1 #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:730 Wiping /dev/mpath/backup1 at sector 0 length 4 sectors #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #device/dev-io.c:541 Closed /dev/mpath/backup1 #metadata/metadata.c:1523 Writing physical volume data to disk "/dev/mpath/backup1" #cache/lvmcache.c:1166 lvmcache: /dev/mpath/backup1: now in VG #orphans_lvm2 (#orphans_lvm2) #format_text/format-text.c:1453 Creating metadata area on /dev/mpath/backup1 at sector 8 size 376 sectors #format_text/format-text.c:1523 /dev/mpath/backup1: setting pe_start=384 (orig_pe_start=384, pe_align=128, pe_align_offset=0, adjustment=0) #device/dev-io.c:495 Opened /dev/mpath/backup1 RW O_DIRECT #device/dev-io.c:134 /dev/mpath/backup1: block size is 4096 bytes #format_text/text_label.c:137 /dev/mpath/backup1: Preparing PV label header sVsk4g-FEwG-nQfC-3xqX-Oc3B-Ytee-KH6rFe size 3221225472000 with da1 (384s, 0s) mda1 (8s, 376s) #label/label.c:334 /dev/mpath/backup1: Writing label to sector 1 with stored offset 32. Physical volume "/dev/mpath/backup1" successfully created #locking/file_locking.c:74 Unlocking /var/lock/lvm/P_orphans #locking/file_locking.c:51 _undo_flock /var/lock/lvm/P_orphans #device/dev-io.c:541 Closed /dev/mpath/backup1 [root@office ~]# dd if=/dev/mpath/backup1 bs=1k count=1 | cat -v - ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@LABELONE^A^@^@^@^@^@^@^@,M->M-aM-R ^@^@^@LVM2 001sVsk4gFEwGnQfC3xqXOc3BYteeKH6rFe^@^@^@^@M-n^B^@^@^@^@^C^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^P^@^@^@^@^@^@^@M-p^B^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@1+0 records in 1+0 records out 1024 bytes (1.0 kB) copied, 0.01024 seconds, 100 kB/s [root@office ~]# pvdisplay /dev/mpath/backup1 "/dev/mpath/backup1" is a new physical volume of "2.93 TB" --- NEW Physical volume --- PV Name /dev/mpath/backup1 VG Name PV Size 2.93 TB Allocatable NO PE Size (KByte) 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID sVsk4g-FEwG-nQfC-3xqX-Oc3B-Ytee-KH6rFe
_______________________________________________ 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/
