Pelle Hanses
Dabbler
- Joined
- Dec 12, 2015
- Messages
- 11
Hi,
short problem statement. Something is doing VM's working incredible slow. The performance are so bad that if I copy many files in one VM everything else stops.
I'm using Proxmox as virtual environment and using FreeNAS as storage servers for all VM's. We have a couple of Proxmox clusters and three Supermicro servers for FreeNAS. All of the three FreeNAS servers have 36 disk bays, 2 x CPU, 256GB RAM or more, 30Gb/s to core switch. The Proxmox servers have 20Gb/s connection to the core switch.
VM's using other FreeNAS server are working very well. The new server with the performance issue have:
Question: Is it possible to see if it is the lack of log or cache that are causing the performance problems?
I have tested to shut down all VM's and the network speed are correct.
I have some extra SSD I can use for log and cache disks. I have set up many other FreeNAS servers and the log disks have done wonders for performance.
/PelleH
short problem statement. Something is doing VM's working incredible slow. The performance are so bad that if I copy many files in one VM everything else stops.
I'm using Proxmox as virtual environment and using FreeNAS as storage servers for all VM's. We have a couple of Proxmox clusters and three Supermicro servers for FreeNAS. All of the three FreeNAS servers have 36 disk bays, 2 x CPU, 256GB RAM or more, 30Gb/s to core switch. The Proxmox servers have 20Gb/s connection to the core switch.
VM's using other FreeNAS server are working very well. The new server with the performance issue have:
- one pool with 10 14TB HGST Ultrastar HE14 SAS disks in Raid 10 and
- 6 SSD in Raid 10
- there are no log or cache disks.
Question: Is it possible to see if it is the lack of log or cache that are causing the performance problems?
I have tested to shut down all VM's and the network speed are correct.
I have some extra SSD I can use for log and cache disks. I have set up many other FreeNAS servers and the log disks have done wonders for performance.
/PelleH