I do have the lvm-drbd-storage shared. I have only two node. I can see that when I install a new VM that the lvm-drbd-storage is the same size on both nodes.
Thanks,
dakota_winds
Thanks,
dakota_winds
Intel 82574L NIC not working.
- Thread starter dakota_winds
- Start date
Hi,
to bring light in the dark, can you post following output?
Code:
cat /etc/pve/storage.cfg
vgs
cat /etc/pve/nodes/*/qemu-server/VMID.conf # e.g. 105.conf or what number the VM hasLast login: Wed Aug 8 09:44:47 2012 from 10.0.0.181
root@prxmx1:~# cat /etc/pve/storage.cfg
lvm: drbdgp
vgname drbdvg
shared
content images
nodes prxmx1
dir: local
path /var/lib/vz
content images,iso,vztmpl,rootdir
maxfiles 0
root@prxmx1:~# vgs
VG #PV #LV #SN Attr VSize VFree
drbdvg 1 2 0 wz--n- 931.48g 799.48g
pve 1 3 0 wz--n- 278.96g 15.99g
root@prxmx1:~# cat /etc/pve/nodes/*/qemu-server/101.conf
bootdisk: ide0
cores: 1
ide0: drbdgp:vm-101-disk-1
ide2: local:iso/ubuntu-12.04-desktop-amd64.iso,media=cdrom
memory: 2048
name: ubu12test
net0: rtl8139=9A:EE:C8:30:1C
4,bridge=vmbr0
ostype: l26
sockets: 1
root@prxmx1:~# cat /etc/pve/storage.cfg
lvm: drbdgp
vgname drbdvg
shared
content images
nodes prxmx1
dir: local
path /var/lib/vz
content images,iso,vztmpl,rootdir
maxfiles 0
root@prxmx1:~# vgs
VG #PV #LV #SN Attr VSize VFree
drbdvg 1 2 0 wz--n- 931.48g 799.48g
pve 1 3 0 wz--n- 278.96g 15.99g
root@prxmx1:~# cat /etc/pve/nodes/*/qemu-server/101.conf
bootdisk: ide0
cores: 1
ide0: drbdgp:vm-101-disk-1
ide2: local:iso/ubuntu-12.04-desktop-amd64.iso,media=cdrom
memory: 2048
name: ubu12test
net0: rtl8139=9A:EE:C8:30:1C
4,bridge=vmbr0ostype: l26
sockets: 1
Hi,
there should be something like "nodes prxmx1,prxmx2" (you must select both nodes in the storage-gui).
Udo
Hi,
how you wan't do live migration when the other node isn't available??
Do you have an running cluster?
What is the output of "clustat" ?
Udo
Obviously I am missing something. Per the directions from http://pve.proxmox.com/wiki/DRBD...
[h=1]Create the first VM on DRBD for testing and live migration[/h] In order to check end to end functionality, create a new KVM VM - and obviously store the VM disk on the previously created storage. Now, if you install the operating system - in my case a Ubuntu 9.04 all the data is already replicated automatically on both nodes - just finish the installation and reboot into your VM.
Try to live migrate the VM - as all data is available on both nodes it just take a few seconds. The overall process can take a bit longer if the VM is under load and if there is a lot of RAM involved. But in any case, the downtime is minimal and you will see no interruption at all - like you use iSCSI or NFS for storage back-end.
I see that the VM is created on prxmx1 and is also mirrored to prxmx2 but if I shutdown prxmx1 I am not able to access any VM. Should I not be able to still use the VM if prxmx1 is down. Being mirrored on prxmx2 I should still be able to use it, correct?
Thank you for your patients and assistance.
dakota_winds
[h=1]Create the first VM on DRBD for testing and live migration[/h] In order to check end to end functionality, create a new KVM VM - and obviously store the VM disk on the previously created storage. Now, if you install the operating system - in my case a Ubuntu 9.04 all the data is already replicated automatically on both nodes - just finish the installation and reboot into your VM.
Try to live migrate the VM - as all data is available on both nodes it just take a few seconds. The overall process can take a bit longer if the VM is under load and if there is a lot of RAM involved. But in any case, the downtime is minimal and you will see no interruption at all - like you use iSCSI or NFS for storage back-end.
I see that the VM is created on prxmx1 and is also mirrored to prxmx2 but if I shutdown prxmx1 I am not able to access any VM. Should I not be able to still use the VM if prxmx1 is down. Being mirrored on prxmx2 I should still be able to use it, correct?
Thank you for your patients and assistance.
dakota_winds
Then read carefully again:
Code:
...
Preparations
Make sure you run at least Proxmox VE 1.4 on both servers and [B]create[/B] the well known standard [B]Proxmox VE Cluster[/B]Hi Cesar,
comment cram-hmac-alg and shared-secret in the net-section (global, or recource) - see http://www.drbd.org/users-guide/re-drbdconf.html.
But I don't know how much improvement you get.
Udo