Cache=none ?

[BitRausch]

Hi all,

Just a question for my understanding:

When I create a new harddisk throu the GUI I see that the default cache setting is "Default (no cache)" which is fine.
But in the <vmid>.conf I do not see the "cache=none" behind the harddisk line. Where can I see if cache is really off?
(I ran some very quick and dirty test and I think cache is still on). I added the cache=none to the harddisk line manualy and it looks to me that only with this modification cache is off.

here my sample vmid.conf (nothing special - cache=none was added by me)

bootdisk: virtio0
cores: 4
ide0: NFSISO:iso/de_install_disc_windows_small_business_server_2011_standard_x6$
ide2: NFSISO:iso/virtio-win-1.1.16.iso,media=cdrom
memory: 8129
name: SBSTest
net0: e1000=EA:1D:B2:1B:68:13,bridge=vmbr1
ostype: win7
sockets: 1
virtio0: local:100/vm-100-disk-1.raw,cache=none

pveversion -v

pve-manager: 2.0-33 (pve-manager/2.0/c598d9e1)
running kernel: 2.6.32-7-pve
proxmox-ve-2.6.32: 2.0-60
pve-kernel-2.6.32-7-pve: 2.6.32-60
lvm2: 2.02.88-2pve1
clvm: 2.02.88-2pve1
corosync-pve: 1.4.1-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.8-3
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.7-1
pve-cluster: 1.0-23
qemu-server: 2.0-20
pve-firmware: 1.0-15
libpve-common-perl: 1.0-14
libpve-access-control: 1.0-16
libpve-storage-perl: 2.0-12
vncterm: 1.0-2
vzctl: 3.0.30-2pve1
vzprocps: 2.0.11-2
vzquota: 3.0.12-3
pve-qemu-kvm: 1.0-4
ksm-control-daemon: 1.1-1

Kind regards

 

[tom]

e.g. with:

qm showcmd <vmid>

this shows the detailed parameters for the KVM process.

 

[BitRausch]

Thank you very much Tom.
I can see that cache=none shows up in the qm showcmd. I will double check on my side why I get this missleading information ....

kind regards