[PVE-User] HA Problem

[Thomas Lamprecht]

Hi,

On 27.05.2016 21:39, Daniel Eschner wrote:
> seems to be :-(
>

Yes, offline storage migration should work for more or less all and if not it is on the todo list of a proxmox dev, AFAIK.
Online Storage migration is not implemented :)

> but should not be a big deal to copy all files ;)
>

Exactly, a little inconvenient for now but always works :)

Another thing you probably will have problems again if you want to use HA:
HA does online migrations, so it implies shared storages for the VMs,
having the disks only local on the node defeats the purpose of HA a little,
because if the local node burns down (worst case) the disk will be lost to so a recovery of the VM is impossible.

So for HA use a shared storage, you could reuse your PVE nodes and but Ceph/GlusterFS on them to achieve that.
Or a external independent shared storage solution would be also good.

cheers,
Thomas

>
>> Am 27.05.2016 um 13:34 schrieb David Lawley <davel at upilab.com>:
>>
>> seen that too, I would appear that it is not implemented yet in LXC?
>>
>>
>>
>> On 5/26/2016 5:39 PM, Daniel Eschner wrote:
>>> Mhh,
>>>
>>> it seems i dont have that Option: https://www.dropbox.com/s/l1wml72jvd9k074/Screenshot%202016-05-26%2023.38.25.png?dl=0
>>>
>>> Maybe it depends on LXC/KVM image? I just use lxc at the moment.
>>>
>>>
>>>> Am 26.05.2016 um 23:33 schrieb Bart Lageweg | Bizway <bart at bizway.nl>:
>>>>
>>>> Click on disk on the hardware tab of the VM.
>>>> Press move disk and choose Ceph storage.
>>>> Do not click delete...
>>>>
>>>> After migrate you get a unused disk and you can remove if running OK in the VM
>>>>
>>>> Verstuurd vanaf mijn iPhone
>>>>
>>>>> Op 26 mei 2016 om 23:30 heeft Daniel Eschner <daniel at linux-nerd.de> het volgende geschreven:
>>>>>
>>>>> Do you know if there is a easy way to migrate a VM to another Storage?
>>>>> From LVM to Ceph Storage or do i have to create a storage a copy all data by hand?
>>>>>
>>>>>
>>>>>> Am 26.05.2016 um 23:25 schrieb Bart Lageweg | Bizway <bart at bizway.nl>:
>>>>>>
>>>>>> Hi Daniel,
>>>>>>
>>>>>> You can move the config files trough /etc/pve/node etc in the right dir
>>>>>>
>>>>>> Verstuurd vanaf mijn iPhone
>>>>>>
>>>>>>> Op 26 mei 2016 om 23:20 heeft Daniel Eschner <daniel at linux-nerd.de> het volgende geschreven:
>>>>>>>
>>>>>>> Configurationfiles and LVM still exist in the Host-System.
>>>>>>>
>>>>>>> ACTIVE            '/dev/pve/vm-100-disk-1' [20.00 GiB] inherit
>>>>>>> ACTIVE            '/dev/pve/vm-101-disk-1' [50.00 GiB] inherit
>>>>>>>
>>>>>>> Just proxmox need to know the the VM is located on that server ;)
>>>>>>>
>>>>>>>
>>>>>>>> Am 26.05.2016 um 23:09 schrieb Daniel Eschner <daniel at linux-nerd.de>:
>>>>>>>>
>>>>>>>> Hi All,
>>>>>>>>
>>>>>>>> i played a bit with the HA feature. It seems now i damaged 2 VMs which are located on the local LVM-THIN
>>>>>>>> After i placed the nodes in the HA and rebootet the Host-Systems all VMs has been migrated to another Host which is OK but now i am not able to start the VM or not able to migrate it back to host01 where the nodes was located before.
>>>>>>>>
>>>>>>>> When i start the Migration i get these errors:
>>>>>>>>
>>>>>>>> May 26 23:04:10 starting migration of CT 100 to node 'host01' (10.0.2.110)
>>>>>>>> May 26 23:04:10 copy mountpoint 'rootfs' (local-lvm:vm-100-disk-1) to node ' host01'
>>>>>>>> May 26 23:04:10 ERROR: unable to migrate 'local-lvm:vm-100-disk-1' to 'local-lvm:vm-100-disk-1' on host '10.0.2.110' - source type 'lvmthin' not implemented
>>>>>>>> May 26 23:04:10 aborting phase 1 - cleanup resources
>>>>>>>> May 26 23:04:10 start final cleanup
>>>>>>>> May 26 23:04:10 ERROR: migration aborted (duration 00:00:00): unable to migrate 'local-lvm:vm-100-disk-1' to 'local-lvm:vm-100-disk-1' on host '10.0.2.110' - source type 'lvmthin' not implemented
>>>>>>>> TASK ERROR: migration aborted
>>>>>>>>
>>>>>>>> When i try to start i get the following error:
>>>>>>>>
>>>>>>>> lxc-start: lxc_start.c: main: 344 The container failed to start.
>>>>>>>> lxc-start: lxc_start.c: main: 346 To get more details, run the container in foreground mode.
>>>>>>>> lxc-start: lxc_start.c: main: 348 Additional information can be obtained by setting the --logfile and --logpriority options.
>>>>>>>> TASK ERROR: command 'lxc-start -n 100' failed: exit code 1
>>>>>>>>
>>>>>>>> It seems that it happend because its not a shared storage.
>>>>>>>>
>>>>>>>> Is there anyway to fix the problem then i can run my VMs again? ;)
>>>>>>>>
>>>>>>>> P.S. The VM in my shared Ceph Storage works fine.
>>>>>>>>
>>>>>>>>
>>>>>>>> Cheers
>>>>>>>>
>>>>>>>> Daniel
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