Openstack Packstack LVM Thin Provisioning [closed]
I was install openstack rdo all in one, i was set lvm thin and over_subscription_ratio to 20. but why, when i lunch instance with disk 20g for example, disk capacity is reduced by 20g directly..? i think it is still thick provisioning, is any need more configuration??
thank you.
my configuration:
[root@centos-thin ~(keystone_admin)]# pvs
PV VG Fmt Attr PSize PFree
/dev/loop0 cinder-volumes lvm2 a-- 20.60g 1012.00m
/dev/sda2 cl_centos-thin lvm2 a-- 199.00g 15.82g
[root@centos-thin ~(keystone_admin)]# vgs
VG #PV #LV #SN Attr VSize VFree
cinder-volumes 1 1 0 wz--n- 20.60g 1012.00m
cl_centos-thin 1 3 0 wz--n- 199.00g 15.82g
[root@centos-thin ~(keystone_admin)]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
cinder-volumes-pool cinder-volumes twi-a-tz-- 19.57g 0.00 0.55
pool00 cl_centos-thin twi-aotz-- 183.00g 2.96 1.89
root cl_centos-thin Vwi-aotz-- 175.12g pool00 3.09
swap cl_centos-thin Vwi-aotz-- 7.88g pool00 0.00
[root@centos-thin ~(keystone_admin)]#
[root@centos-thin ~(keystone_admin)]# egrep -i "lvm_type|max_over_subscription_ratio" /etc/cinder/cinder.conf | grep -v "#"
max_over_subscription_ratio = 20.0
lvm_type = thin
[root@centos-thin ~(keystone_admin)]#
[root@centos-thin ~(keystone_admin)]# tail /etc/cinder/cinder.conf
#ciphers = <None>
[lvm]
volume_backend_name=lvm
volume_driver=cinder.volume.drivers.lvm.LVMVolumeDriver
iscsi_ip_address=192.168.10.223
iscsi_helper=lioadm
volumes_dir=/var/lib/cinder/volumes
lvm_type = thin
max_over_subscription_ratio = 20.0
[root@centos-thin ~(keystone_admin)]#
Thank you,
nursanto - are you still running into this issue? if so, please comment with any solutions that you've tried.
@nursanto - Given that no one's answered this and you haven't followed up with any additional questions or information, I'm closing it out. However, if you're still having trouble, please don't hesitate to open another question!