[PVE-User] moving machines among proxmoxs servers.

[PVE-User] moving machines among proxmoxs servers.

[Leandro Roggerone]

Hi guys.
Just wondering if is it possible to move machines without outage ?
What do I need to achieve this ?
Currently have only one box ...
Thanks.
Leandro.

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Re: [PVE-User] moving machines among proxmoxs servers.

[Leandro Roggerone]

Alejandro , thanks for your words.
Let me explain:
About live migration ... yes I think this is what I need to achieve.
So basically you can "drag and drop" VMs from one node to another ?

What do I need to achieve this ? / Only have one node.
My current pve bos is in production with very important machines running on
it.
I will add a second pve server machine soon.
But , I dont have any network storage , so the question would be:
Having two pve machines (already running and fresh one) is it possible to
perform live migrations?
or is it mandatory to have an intermediate hardware or something like that?

Regards,
Leandro.




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El lun, 30 nov 2020 a las 13:45, Alejandro Bonilla via pve-user (<
pve-user@lists.proxmox.com>) escribió:

>
>
>
> ---------- Forwarded message ----------
> From: Alejandro Bonilla <abonilla@suse.com>
> To: Proxmox VE user list <pve-user@lists.proxmox.com>
> Cc:
> Bcc:
> Date: Mon, 30 Nov 2020 16:45:29 +0000
> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
>
>
> > On Nov 30, 2020, at 11:21 AM, Leandro Roggerone <
> leandro@tecnetmza.com.ar> wrote:
> >
> > Hi guys.
> > Just wondering if is it possible to move machines without outage ?
>
> I thought at first you were referring to a live-migration which is easy to
> achieve
>
> 64 bytes from 10.0.0.111: icmp_seq=25 ttl=64 time=0.363 ms
> 64 bytes from 10.0.0.111: icmp_seq=26 ttl=64 time=0.397 ms
> 64 bytes from 10.0.0.111: icmp_seq=27 ttl=64 time=0.502 ms
> Request timeout for icmp_seq 28
> 64 bytes from 10.0.0.111: icmp_seq=29 ttl=64 time=0.366 ms
> 64 bytes from 10.0.0.111: icmp_seq=30 ttl=64 time=0.562 ms
> 64 bytes from 10.0.0.111: icmp_seq=31 ttl=64 time=0.469 ms
>
> And certainly happens with little to no outage.
>
> > What do I need to achieve this ?
>
> More than one node (cluster), storage, then perform a migration… using
> storage like Ceph will make the migration way faster.
>
> > Currently have only one box ...
>
> And then I got confused. Are you trying to migrate from another hypervisor
> or you are just asking if it’s possible at all and then would add another
> box?
>
> > Thanks.
> > Leandro.
> >
>
>
>
>
> ---------- Forwarded message ----------
> From: Alejandro Bonilla via pve-user <pve-user@lists.proxmox.com>
> To: Proxmox VE user list <pve-user@lists.proxmox.com>
> Cc: Alejandro Bonilla <abonilla@suse.com>
> Bcc:
> Date: Mon, 30 Nov 2020 16:45:29 +0000
> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> _______________________________________________
> pve-user mailing list
> pve-user@lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>

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Re: [PVE-User] moving machines among proxmoxs servers.

[Gilberto Nunes]

Yes! Using two machines and GlusterFS for instance, is an easier way
to achieve this. ( First of all you need create a cluster over
Proxmox: https://pve.proxmox.com/wiki/Cluster_Manager)
Just make two folders, like /DATA, in each server. Make sure this
folder is separated into HDD, rather into just one HDD!
Then, follow the instructions here to install and upgrade glusterfs:
https://download.gluster.org/pub/gluster/glusterfs/LATEST/Debian/
(make sure you choose buster!)
Install gluster server: apt install glusterfs-server.
Now, make sure that you have a separated NIC to make all the network
traffic run over this NIC. Use some private network address.
After installing gluster server do this in the first node:
gluster peer probe server1
Then use this command to create a replica 2 glusterfs server:
gluster vol create VMS replica 2 server1:/DATA/vms server2:/DATA/vms
(make sure server1 and server2 are in /etc/hosts with correspondent private IP)
Make the vol VMS up: gluster vol start VMS
Then add this do the /etc/fstab in server1:
server1:VMS /vms glusterfs
defaults,_netdev,x-systemd.automount,backupvolfile-server=server2 0 0
And add this do the /etc/fstab in server2:
server2:VMS /vms glusterfs
defaults,_netdev,x-systemd.automount,backupvolfile-server=server1 0 0

Add this in each server:
file: /etc/systemd/system/glusterfsmounts.service:

[Unit]
Description=Glustermounting
Requires=glusterd.service

[Service]
Type=simple
RemainAfterExit=true
ExecStartPre=/usr/sbin/gluster volume list
ExecStart=/bin/mount -a -t glusterfs
Restart=on-failure
RestartSec=3

[Install]
WantedBy=multi-user.target
then you would:

systemctl daemon-reload

systemctl enable glusterfsmounts

This will make sure the system mounts the /vms directory, after a reboot.

You need apply some tricks here:
gluster vol set VMS cluster.heal-timeout 5
gluster volume heal VMS enable
gluster vol set VMS cluster.quorum-reads false
gluster vol set VMS cluster.quorum-count 1
gluster vol set VMS network.ping-timeout 2
gluster volume set VMS cluster.favorite-child-policy mtime
gluster volume heal VMS granular-entry-heal enable
gluster volume set VMS cluster.data-self-heal-algorithm full

After all that, go to Datacenter -> Storage -> Directory and add the
/vms as a directory storage in your PROXMOX. Remember to mark as
shared storage.

I have used this set up for many months now and so far no issues. But
the most clever way is to keep backup, right?

Cheers
---
Gilberto Nunes Ferreira

Em seg., 30 de nov. de 2020 às 14:10, Leandro Roggerone
<leandro@tecnetmza.com.ar> escreveu:
>
> Alejandro , thanks for your words.
> Let me explain:
> About live migration ... yes I think this is what I need to achieve.
> So basically you can "drag and drop" VMs from one node to another ?
>
> What do I need to achieve this ? / Only have one node.
> My current pve bos is in production with very important machines running on
> it.
> I will add a second pve server machine soon.
> But , I dont have any network storage , so the question would be:
> Having two pve machines (already running and fresh one) is it possible to
> perform live migrations?
> or is it mandatory to have an intermediate hardware or something like that?
>
> Regards,
> Leandro.
>
>
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> Libre
> de virus. www.avast.com
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
> <#m_-8318222231522076233_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>
> El lun, 30 nov 2020 a las 13:45, Alejandro Bonilla via pve-user (<
> pve-user@lists.proxmox.com>) escribió:
>
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Alejandro Bonilla <abonilla@suse.com>
> > To: Proxmox VE user list <pve-user@lists.proxmox.com>
> > Cc:
> > Bcc:
> > Date: Mon, 30 Nov 2020 16:45:29 +0000
> > Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> >
> >
> > > On Nov 30, 2020, at 11:21 AM, Leandro Roggerone <
> > leandro@tecnetmza.com.ar> wrote:
> > >
> > > Hi guys.
> > > Just wondering if is it possible to move machines without outage ?
> >
> > I thought at first you were referring to a live-migration which is easy to
> > achieve
> >
> > 64 bytes from 10.0.0.111: icmp_seq=25 ttl=64 time=0.363 ms
> > 64 bytes from 10.0.0.111: icmp_seq=26 ttl=64 time=0.397 ms
> > 64 bytes from 10.0.0.111: icmp_seq=27 ttl=64 time=0.502 ms
> > Request timeout for icmp_seq 28
> > 64 bytes from 10.0.0.111: icmp_seq=29 ttl=64 time=0.366 ms
> > 64 bytes from 10.0.0.111: icmp_seq=30 ttl=64 time=0.562 ms
> > 64 bytes from 10.0.0.111: icmp_seq=31 ttl=64 time=0.469 ms
> >
> > And certainly happens with little to no outage.
> >
> > > What do I need to achieve this ?
> >
> > More than one node (cluster), storage, then perform a migration… using
> > storage like Ceph will make the migration way faster.
> >
> > > Currently have only one box ...
> >
> > And then I got confused. Are you trying to migrate from another hypervisor
> > or you are just asking if it’s possible at all and then would add another
> > box?
> >
> > > Thanks.
> > > Leandro.
> > >
> >
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Alejandro Bonilla via pve-user <pve-user@lists.proxmox.com>
> > To: Proxmox VE user list <pve-user@lists.proxmox.com>
> > Cc: Alejandro Bonilla <abonilla@suse.com>
> > Bcc:
> > Date: Mon, 30 Nov 2020 16:45:29 +0000
> > Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> > _______________________________________________
> > pve-user mailing list
> > pve-user@lists.proxmox.com
> > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >
>
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Re: [PVE-User] moving machines among proxmoxs servers.

[Leandro Roggerone]

Thanks , very clear !!

El lun, 30 nov 2020 a las 14:38, José Manuel Giner via pve-user (<
pve-user@lists.proxmox.com>) escribió:

>
>
>
> ---------- Forwarded message ----------
> From: "José Manuel Giner" <jm@ginernet.com>
> To: pve-user@lists.proxmox.com
> Cc:
> Bcc:
> Date: Mon, 30 Nov 2020 18:28:32 +0100
> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> Hi, unfortunately Proxmox does not have a feature like vzmigrate that
> allows you to move a VPS from one Proxmox to another on different networks.
>
> You need a cluster. And if you want to do a live migration, the cluster
> must include a shared datastore with the VMs hosted on it.
>
>
>
> On 30/11/2020 18:10, Leandro Roggerone wrote:
> > Alejandro , thanks for your words.
> > Let me explain:
> > About live migration ... yes I think this is what I need to achieve.
> > So basically you can "drag and drop" VMs from one node to another ?
> >
> > What do I need to achieve this ? / Only have one node.
> > My current pve bos is in production with very important machines running
> on
> > it.
> > I will add a second pve server machine soon.
> > But , I dont have any network storage , so the question would be:
> > Having two pve machines (already running and fresh one) is it possible to
> > perform live migrations?
> > or is it mandatory to have an intermediate hardware or something like
> that?
> >
> > Regards,
> > Leandro.
> >
> >
> >
> >
> > <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > Libre
> > de virus. www.avast.com
> > <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > <#m_-8318222231522076233_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> >
> > El lun, 30 nov 2020 a las 13:45, Alejandro Bonilla via pve-user (<
> > pve-user@lists.proxmox.com>) escribió:
> >
> >>
> >>
> >>
> >> ---------- Forwarded message ----------
> >> From: Alejandro Bonilla <abonilla@suse.com>
> >> To: Proxmox VE user list <pve-user@lists.proxmox.com>
> >> Cc:
> >> Bcc:
> >> Date: Mon, 30 Nov 2020 16:45:29 +0000
> >> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> >>
> >>
> >>> On Nov 30, 2020, at 11:21 AM, Leandro Roggerone <
> >> leandro@tecnetmza.com.ar> wrote:
> >>>
> >>> Hi guys.
> >>> Just wondering if is it possible to move machines without outage ?
> >>
> >> I thought at first you were referring to a live-migration which is easy
> to
> >> achieve
> >>
> >> 64 bytes from 10.0.0.111: icmp_seq=25 ttl=64 time=0.363 ms
> >> 64 bytes from 10.0.0.111: icmp_seq=26 ttl=64 time=0.397 ms
> >> 64 bytes from 10.0.0.111: icmp_seq=27 ttl=64 time=0.502 ms
> >> Request timeout for icmp_seq 28
> >> 64 bytes from 10.0.0.111: icmp_seq=29 ttl=64 time=0.366 ms
> >> 64 bytes from 10.0.0.111: icmp_seq=30 ttl=64 time=0.562 ms
> >> 64 bytes from 10.0.0.111: icmp_seq=31 ttl=64 time=0.469 ms
> >>
> >> And certainly happens with little to no outage.
> >>
> >>> What do I need to achieve this ?
> >>
> >> More than one node (cluster), storage, then perform a migration… using
> >> storage like Ceph will make the migration way faster.
> >>
> >>> Currently have only one box ...
> >>
> >> And then I got confused. Are you trying to migrate from another
> hypervisor
> >> or you are just asking if it’s possible at all and then would add
> another
> >> box?
> >>
> >>> Thanks.
> >>> Leandro.
> >>>
> >>
> >>
> >>
> >>
> >> ---------- Forwarded message ----------
> >> From: Alejandro Bonilla via pve-user <pve-user@lists.proxmox.com>
> >> To: Proxmox VE user list <pve-user@lists.proxmox.com>
> >> Cc: Alejandro Bonilla <abonilla@suse.com>
> >> Bcc:
> >> Date: Mon, 30 Nov 2020 16:45:29 +0000
> >> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> >> _______________________________________________
> >> pve-user mailing list
> >> pve-user@lists.proxmox.com
> >> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >>
> >
> > <
> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > Libre
> > de virus. www.avast.com
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> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> >
> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> > _______________________________________________
> > pve-user mailing list
> > pve-user@lists.proxmox.com
> > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >
>
> --
> José Manuel Giner
> https://ginernet.com
>
>
>
>
>
> ---------- Forwarded message ----------
> From: "José Manuel Giner via pve-user" <pve-user@lists.proxmox.com>
> To: pve-user@lists.proxmox.com
> Cc: "José Manuel Giner" <jm@ginernet.com>
> Bcc:
> Date: Mon, 30 Nov 2020 18:28:32 +0100
> Subject: Re: [PVE-User] moving machines among proxmoxs servers.
> _______________________________________________
> pve-user mailing list
> pve-user@lists.proxmox.com
> https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
>