[PVE-User] Qcow2 and raw format, disk provisioning and SSDs
miguel_3_gonzalez at yahoo.es
Tue Nov 28 23:35:13 CET 2017
On 11/27/17 12:32 PM, Miguel González wrote:
> I am migrating from a server with Proxmox 4.4-18 with SATA drives to a
> Proxmox 5.1-36 with SSD drives.
> I am trying to get the best in performance. I already split OS and data
> disk drives so /home folder is not being backed up by Proxmox, only OS.
> Filesystem Size Used Avail Use% Mounted on
> /dev/sda5 29G 17G 12G 58% /
> tmpfs 8.3G 0 8.3G 0% /dev/shm
> /dev/sdb1 50G 33G 14G 71% /home
> /dev/sda1 504M 178M 301M 38% /boot
> /dev/sda2 2.0G 75M 1.8G 4% /tmp
> The sda drive was 250 Gb and I shrink it to 36 Gb. I have already zeroed
> all sda partitions with dd but still after converting qcow2 following
> this https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files the resulting
> qcow2 file is 48 Gb, not 36-40 Gb.
> Something am I missing?
> On the other hand, a few more questions:
> - Should I move to RAW format? Pros? Cons? I have read that backups take
> longer but performance boost is better.
> - Anything that I have to change in Proxmox settings when using SSD
> instead of SATA?
This email has been checked for viruses by AVG.
More information about the pve-user