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I dont think that proxmox can be responsible for anything we run on on Proxmox. It's in the responsibility of the owner of a proxmox System to comply with the according license agreement. If it comes to running a virtual OSX, I understood that Apple has changed their licensing agreement in...

Have you checked the Support Pages of OVH. There Is one Site which describes in Detail how to configure failover ip's .

Use NFS with automount

Good morning I discovered as well some swapiness of servers which we upgraded to the latest proxmox release. Even if enough RAM is available. We have still some Servers with Proxmox 3.1 running, having a uptime for about one year. On those servers no swap is used at all. Never the less. I found...

We do backup in LVM storage. So far no performance issues in the VM's

With the release of Proxmox VE 3.0 back in May 2013, the Proxmox VE web interface does no longer require Apache. Instead, they’re using now a new event driven API server called pveproxy

If you dont need Apache2, remove it from the Proxmox VE Host. check your apache https://ssltools.geotrust.com/checker/views/certCheck.jsp

Have you installed and started acpid in the guest system ?

I dont know , I'm Sorry. Maybe we have some more advanced users here in the community to answer this questions. If you search the web you might find different answers.

well ,this is depending on the use case. anything better than a P400. as you can see in my tests with a P420i. Use SAS 15k Disks or SSD Disks - may be another good option to improve the situation you are facing. Edit : another point of improvement may be : use virtio for HDD, use RAW format...

yes, this must be a better controller :)

just found a server with raid5 and a P400, but we dont use this for hosting VM, ist's kinda "cold" storage system from HP. [root@obelix03 ~]# dd if=/dev/zero of=testfile bs=1M count=1000 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 2.12097 s, 494 MB/s I would recommend...

well its a P420i with SAS disks in RAID1, so its not comparable to your setting. I'll check later if I find a server with a P400 controller. well I know that P400 are not the fastest controllers :) okay here we are : On the host system root@virtualix08:/var/lib/vz# dd if=/dev/zero of=testfile...

Yes raid6 for safety Is good. Let me Do the Tests as well, as we have some Servers with p400. Let you Know the Results later.

I dont have experiences with 50 or 60. what about raid 0+1? Bzw. what is the read/write ratio setting of your Controller?

RAID 5 has not the best Write Results, while reading is good. Same goes for RAID 6. RAID 0 would be Fine.

RAID 5 is not ideal for Vm guest Hosting. How Do your Controller Settings looks like? ctrl slot=1 show

What Hardware Controller do you use for your host system ?

Change to noop and Check if this improove the situation.

What Kernel Parameter for elevator on The guest System are you Using: Deadline, CFQ or noop ?