Hi guys , after install a new storage to my box , had to create lvm-thin. Im not very good with lvm , after reading some docs , and links like: https://forum.proxmox.com/threads/how-to-create-an-lvm-thinpool-and-vz-directory-on-the-same-disk.62901/
I got a working solution but have also some questions about it. This is what I did: wipefs -a /dev/sdb sgdisk -N 1 /dev/sdb pvcreate --metadatasize 1024M -y -ff /dev/sdb1 vgcreate --metadatasize 1024M proxvg /dev/sdb1 lvcreate -l 100%FREE --poolmetadatasize 1024M --chunksize 256 -T -n proxthin proxvg lvcreate -n proxvz -V 1.1T proxvg/proxthin mkfs.ext4 /dev/proxvg/proxvz mkdir /media/vz echo '/dev/proxvg/proxvz /media/vz ext4 defaults,errors=remount-ro 0 2' >> /etc/fstab mount -a And have following result: root@pve2:~# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert proxthin proxvg twi-aotz-- 1.63t 22.03 6.34 proxvz proxvg Vwi-aotz-- 1.10t proxthin 1.67 root@pve2:~# lvdisplay --- Logical volume --- LV Name proxthin VG Name proxvg LV UUID 4cEIr9-3ZVQ-vsy1-q9ZX-GsaD-7oq0-pZixsX LV Write Access read/write LV Creation host, time pve2, 2021-04-01 13:09:41 -0300 LV Pool metadata proxthin_tmeta LV Pool data proxthin_tdata LV Status available # open 3 LV Size 1.63 TiB Allocated pool data 22.03% Allocated metadata 6.34% Current LE 428451 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:2 --- Logical volume --- LV Path /dev/proxvg/proxvz LV Name proxvz VG Name proxvg LV UUID huzpPT-g0Gd-3Jwb-2ydz-InHh-73vN-Jnc5TR LV Write Access read/write LV Creation host, time pve2, 2021-04-01 13:10:12 -0300 LV Pool name proxthin LV Status available # open 1 LV Size 1.10 TiB Mapped size 1.67% Current LE 288359 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:4 Have following comments: I can create VMs on proxthin partition so it is ok. I can create backup on proxvz partition so it is ok. What im concerned about is: Physic storage space is about 1.8TG , how is it possible to create a 1.6 and 1.1T volumnes inside ? It can be a problem in the future ? I was thinking about reduce proxthin partition to 600Gb aprox , so it make same sense 1.1T + 600G aprox 1.8 T But there is no LV Path on proxthin partition so I can unmount and the reduce. So .. What im missing here ? do I need to reduce proxthin partition ( I do need the 1.1T partition to backup). Hope to be clear about this guys. Any comment would be wellcome. Leandro. _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
