[LVM] pvcreate - ignored by filtering
 

Hi guys,

again LVM issue.

Problem:
# pvcreate /dev/sdf1
Device /dev/sdf1 not found (or ignored by filtering).

# lsb_release -a
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 6.6 (Santiago)
Release: 6.6
Codename: Santiago

# rpm -qa | grep lvm
lvm2-2.02.118-2.el6.x86_64
mesa-private-llvm-3.4-3.el6.x86_64
lvm2-libs-2.02.118-2.el6.x86_64

# fdisk -l /dev/sdf

Disk /dev/sdf: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xed02de30

Device Boot Start End Blocks Id System
/dev/sdf1 1 1011 1048376+ 8e Linux LVM

# pvck -vv /dev/sdf1
Setting activation/monitoring to 1
Setting global/locking_type to 1
Setting global/wait_for_locks to 1
File-based locking selected.
Setting global/prioritise_write_locks to 1
Setting global/locking_dir to /var/lock/lvm
Scanning /dev/sdf1
/dev/sdf1: stat failed: No such file or directory
Device /dev/sdf1 not found (or ignored by filtering).

#grep -i filter /etc/lvm/lvm.conf
filter = [ "a/.*/" ]


# pvscan -vvv
[...]
Opened /dev/sdf RO O_DIRECT
/dev/sdf: size is 2097152 sectors
Closed /dev/sdf
Opened /dev/sdf RO O_DIRECT
/dev/sdf: block size is 4096 bytes
/dev/sdf: physical block size is 512 bytes
Closed /dev/sdf
/dev/sdf: Skipping: Partition table signature found [none:(nil)]
[...]

# vgscan -vvv
[...]
/dev/sdf: Aliased to /dev/disk/by-id/scsi-36000c29f6a9b39c7e029e564e636314f in device cache (preferred name)
Opened /dev/sdf RO O_DIRECT
/dev/sdf: size is 2097152 sectors
Closed /dev/sdf
Opened /dev/sdf RO O_DIRECT
/dev/sdf: block size is 4096 bytes
/dev/sdf: physical block size is 512 bytes
Closed /dev/sdf
/dev/sdf: Skipping: Partition table signature found [none:(nil)]
[...]


# ll /dev/sdf
brw-rw---- 1 root disk 8, 80 Nov 20 11:05 /dev/sdf
# ll /dev/sdf1
ls: cannot access /dev/sdf1: No such file or directory

# scsi_id -g -u -d /dev/sdf
36000c29f6a9b39c7e029e564e636314f

Any suggestion?

PS: If I reboot the server, I will find persistent block device /dev/sdf1 , but I need to do this operation WITHOUT reboot my box
PS1: Tried forse udev rescan with "udevadm control --reload-rules", no luck
PS2: Tried udevadm control --reload-rules and udevadm trigger . No luck

Thanks!

Does "sdf1" appear in /proc/partitions ? If not, have you tried "partprobe sdf" ?

Thanks man! It works!

# cat /proc/partitions
major minor #blocks name

8 0 62914560 sda
8 1 204800 sda1
8 2 62708736 sda2
8 16 20971520 sdb
8 17 20971504 sdb1
8 32 104857600 sdc
8 33 104856223 sdc1
8 64 1048576 sde
8 65 1048376 sde1
8 48 209715200 sdd
8 49 209712478 sdd1
253 0 35442688 dm-0
253 1 16777216 dm-1
253 2 104853504 dm-2
253 3 20967424 dm-3
253 4 10485760 dm-4
8 80 1048576 sdf


# partprobe /dev/sdf
# cat /proc/partitions
[...]
8 80 1048576 sdf
8 81 1048376 sdf1

YEAH!

Now I can successfully see PV (and create)

# pvck -dv /dev/sdf1
Scanning /dev/sdf1
Found label on /dev/sdf1, sector 1, type=LVM2 001
Found text metadata area: offset=4096, size=1044480


Honestly, this device is a sample VMDK shared between 2 VM and managed by a HA cluster pacemaker/corosync environment.
I've easily created this PV on the other vm.

A similar enviroment in SUSE 11 SP3 do not require partprobe command to update LVM devices.

BTW, it's ok for me

Thanks again!