Cool, cheers Nick, that's exactly what I needed to know, just wasn't sure
about the pre-switchover farm/role allocation scenario.
As it goes timescales have slipped a touch (as they can) and we may be
doing everything in one hit now anyway, however it's still very useful to
know for future projects.
Thanks again.
Richard.
On Wednesday, 19 December 2012 10:09:05 UTC, Nick Toursky wrote:
>
> Richard,
>
> I'd recommend creating a DNS zone in Scalr and pointing it to the farm.
> This will create all system records for roles, except the root record ('@').
> Then create a static IN A record pointing to the current infrastructure.
>
> Once you're ready for a switch, point DNS zone to the specific role on the
> farm, this will complement zone with root records pointing to servers of
> this role.
> Then you'll need to delete static IN A record pointing to the old
> infrastructure.
>
> Regards,
> Nick
>
> On Tue, Dec 18, 2012 at 1:47 PM, RichBos <[email protected]<javascript:>
> > wrote:
>
>> Hi all,
>>
>> Got a quick DNS config scenario to check with the community.
>>
>> I've got a client with multiple domains/sub domains we are migrating from
>> a single fixed VPS to x2 Scalr managed farms across app/mysql roles, we've
>> created all the app/domains/sub-domains & vhosts and am planning to
>> pre-load the DNS in Scalr 'as is' (i.e pointing back at the existing
>> servers) and then swap things to the Scalr farms when we're ready to go
>> live.
>>
>> My question is just this, obviously the A records in corresponding
>> app/domain/sub domain entries will point back to the existing servers (pre
>> change over) but in order for this to function correctly I'm presuming I
>> leave blank entries for app (instance/role) allocation (until we swap over
>> to Scalr managed).
>>
>> Apologies if this seems like an obvious question, sometimes it's just
>> better to ask though....!
>>
>> Richard.
>>
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