[cisco-voip] best way to move CUCM Publisher from one host/DC to another

[Charles Goldsmith]

I'm a big fan of SCP as well, but it's limited to 1 vCPU on the encryption,
so that seems to limit it more than the links.  I know this because trying
to move VM's over 10gbit connections and was only getting about 400 mbps.

If you have a middle pc/jump box, I'm a big fan of simple export/import if
you don't have a vCenter in the picture.  That way, you get a backup of the
VM.  vCenter is nice, but migration moves it, doesn't copy, even with
different storage.

I have never tried to use vmkstools, may have to investigate that the next
time I migrate.

On Tue, Dec 10, 2019 at 8:26 PM Ryan Huff <ryanhuff at outlook.com> wrote:

> Yes, SCP is beholden to the line rate between the hosts. Though VMWare
> doesn’t “recommend” it, I can say I’ve also never had a problem with it,
> FWIW... and yeah, super convenient.
>
> Is you have shared storage between the hosts and can migrate the storage
> and compute, I’d power off the VM and just do that.
>
> Sent from my iPhone
>
> On Dec 10, 2019, at 21:20, Anthony Holloway <
> avholloway+cisco-voip at gmail.com> wrote:
>
> 
> SCP is so slow and not recommended by VMware*, but damn if it's not
> convenient.
>
> Ovftool is super fast but I think it requires a middle PC to be ran from.
>
> It would be awesome if you could have the best of both worlds. Like run
> ovftool right on ESXi. I wonder.
>
> I have used Veeam free backup to move VMs, which is as fast as ovftool,
> but a huge install for a one time move.
>
> *To prevent performance and data management related issues on ESX, avoid
> the use of using scp, cp, or mv for storage operations; instead use
> vmkfstools, VMware's virtual machine Importer tool.
> https://kb.vmware.com/s/article/1000936
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>
> On Tue, Dec 10, 2019, 7:50 PM Ryan Huff <ryanhuff at outlook.com> wrote:
>
>> I don’t think vMotion would change the MAC address, UUID.. etc and I
>> think you’d be fine (not while the VM is powered on though).
>>
>> Typically, what I do is power the VM down and SCP the VM folder to the
>> target host from the source host (requires SSH server/client be enabled and
>> excluded in the host firewall for the hosts). Then in the target host, add
>> the .vmx file into inventory and power on. You’ll initially be asked if you
>> moved or copied the VM and you’ll want to select move (if you select copy,
>> then it will randomize a few things like nic MAC .. etc).
>>
>> Lastly, remove the source VM from inventory and after you’re sure the
>> target VM is healthy and running fine, delete the source VM from storage on
>> the source host.
>>
>> Thanks,
>>
>> Ryan
>>
>> On Dec 10, 2019, at 20:42, naresh rathore <nareh84 at hotmail.com> wrote:
>>
>> 
>> hi
>>
>>
>> We have to migrate our Voice VMs from one host/DC to another host/DC. i
>> think if we clone or do vmotion, mac address gets changed and we have to
>> apply for license, we may face database corruption.
>>
>>
>> Is there a way which Cisco recommends to do migration, if we have to
>> migrate Voice VMs from one host to another?
>>
>>
>> Regards
>>
>>
>> Naray
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