In order to use gluster snapshots, I am trying to create LVs through LVM as thinly provisioned logical volumes are needed to make gluster snapshots work.
Creation works, but the setup does not survive a reboot. Somewhere in the process there must be an error. Here is what I am doing to create the LVs:
user@node1:~$ sudo lvs
[sudo] password for user:
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
root rabbit-vg -wi-ao--- 8.86g
swap_1 rabbit-vg -wi-ao--- 5.86g
show physical volumes:
user@node1:~$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/sda5 rabbit-vg lvm2 a-- 14.76g 48.00m
/dev/sde1 lvm2 a-- 20.00g 20.00g
create volume
user@node1:~$ sudo vgcreate gluster /dev/sde1
Volume group "gluster" successfully created
create thin pool
user@node1:~$ sudo lvcreate -L 19.9G -T gluster/mythinpool
Rounding up size to full physical extent 19.90 GiB
Rounding up size to full physical extent 20.00 MiB
Logical volume "mythinpool" created
create logical volume
user@node1:~$ sudo lvcreate -V 19.9G -T gluster/mythinpool -n thinv1
Rounding up size to full physical extent 19.90 GiB
Logical volume "thinv1" created
create file system
user@node1:~$ sudo mkfs.ext4 /dev/gluster/thinv1
mke2fs 1.42.9 (4-Feb-2014)
Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=16 blocks, Stripe width=16 blocks
1305600 inodes, 5217280 blocks
260864 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
160 block groups
32768 blocks per group, 32768 fragments per group
8160 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
show setup
user@node1:~$ sudo lvscan
ACTIVE '/dev/gluster/mythinpool' [19.90 GiB] inherit
ACTIVE '/dev/gluster/thinv1' [19.90 GiB] inherit
ACTIVE '/dev/rabbit-vg/root' [8.86 GiB] inherit
ACTIVE '/dev/rabbit-vg/swap_1' [5.86 GiB] inherit
mount it
user@node1:~$ sudo mount /dev/gluster/thinv1 /bricks/brick1/
show mounted devices
user@node1:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rabbit--vg-root 8.6G 7.4G 839M 90% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 1.5G 4.0K 1.5G 1% /dev
tmpfs 301M 592K 301M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 1.5G 0 1.5G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sda1 236M 38M 186M 17% /boot
/dev/sdb1 15G 4.8G 9.2G 35% /data/mysql
/dev/sdc1 20G 7.2G 12G 39% /data/gluster
/dev/sdd1 20G 17G 2.3G 88% /data/files
gs1:/volume1 20G 7.2G 12G 39% /data/nfs
/dev/mapper/gluster-thinv1 20G 44M 19G 1% /bricks/brick1
now reboot, and check again:
user@node1:~$ sudo lvscan
[sudo] password for user:
inactive '/dev/gluster/mythinpool' [19.90 GiB] inherit
inactive '/dev/gluster/thinv1' [19.90 GiB] inherit
ACTIVE '/dev/rabbit-vg/root' [8.86 GiB] inherit
ACTIVE '/dev/rabbit-vg/swap_1' [5.86 GiB] inherit
volumes inactive, try to activate
user@node1:~$ sudo vgchange -ay gluster
/usr/sbin/thin_check: execvp failed: No such file or directory
Check of thin pool gluster/mythinpool failed (status:2). Manual repair required (thin_dump --repair /dev/mapper/gluster-mythinpool_tmeta)!
/usr/sbin/thin_check: execvp failed: No such file or directory
0 logical volume(s) in volume group "gluster" now active
No matter what I do, the volumes stay inactive and I can not mount them.
What am I doing wrong? Thank you in advance for any help.
