Proxmox is a good solution for single servers infrastructure, you can use a single server where you can house all customer virtual machines. Recently one customer talked us about small problems with a legacy software, He has problems storing data, we make a check and index rebuilt in his database and everything start to work well.
But a couple a weeks after database rebuilt we received an backup reporting errors in Proxmox backups like this
| VMID | NAME | STATUS | TIME | SIZE | FILENAME |
| 100 | XXXXX | FAILED | 00:02:14 | job failed with err -5 – Input/output error | |
| 101 | XXXXX | FAILED | 00:29:00 | job failed with err -5 – Input/output error | |
| 102 | XXXXX | OK | 00:04:42 | 896MB | /media/backup/dump/vzdump-qemu-102-2017_07_29-00_31_16.vma.gz |
| TOTAL | 00:35:56 | 896MB | |||
We checked everything and discover that our server main hard disk was failing (only 6 months working ). We solved this replacing hard disk and restoring the last backups
