Thanks !! very helpful.
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Libre de virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> El lun, 12 abr 2021 a las 3:48, Dominik Csapak (<[email protected]>) escribió: > Hi, > > On 4/9/21 19:19, Leandro Roggerone wrote: > > 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. > > Looks OK imho. > > > > > 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 ? > > LVM Thin is 'thin-provisioned' it only uses space when it is really > written. > > > It can be a problem in the future ? > > yes, if you do not monitor your real usage, if the thinpool runs full, > you can lose data. > > > 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). > > the LV 'proxvz' is inside the thinpool 'proxthin' so as long as you > never allocate more that ~500GiB of vm/ct volumes, it should be fine. > > alos, on allocation, the thinpool will print warnings if the allocated > lvs are bigger than the space available > > hope this helps > > > 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 > > > > > > > _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
