Hi Christopher,

Re seeding secondary storage with system VM tempate, it's best if you do, 
however if the SSVM in the first zone has a route to the secondary storage in 
the new zone you can use the copy template command.

If when you added other templates you added them as all zones and not 
specifically for the first zone, once the new zone is online and the SSVM is 
running you should see them automatically replicate across.

You can copy templates between zones from the UI or API.

Regarding adding S3 backed secondary storage at a later date, you will run into 
problems with volume snapshots and the cleanest approach would be to add it on 
day one, or if adding later delete all the snapshots and then remove the 
exiting  secondary storage, before adding the the new one, but that can also be 
a tricky task.

Regards

Geoff Higginbottom
CTO / Cloud Architect

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On 7 May 2015, at 21:01, Christopher Falk 
<christopher.f...@reliablenetworks.com<mailto:christopher.f...@reliablenetworks.com>>
 wrote:

I'm running commercial CP 4.5 Hotfix 3 and we're about to deploy a second site. 
I've been searching the CP and CS docs and mailing list for some of the 
pitfalls and haven't found a lot of information so I'm jumping in here with 
some questions. I'd love to learn from those who've done it already.

Our current environment looks like:


   * 6-host XenServer 6.2 SP1 cluster in a single pod/zone.
   * Two management servers and a DB master/slave in the same datacenter as the 
compute.
   * iSCSI primary storage, NFS secondary.

We've got a brand new XenServer 6.5 cluster ready to go in our second 
datacenter with a high-bandwidth redundant link to the first DC. We intend to 
create a second zone in the new facility and leave management in the first one 
for now. I've got the following questions I was hoping for some wisdom on:


   * Do I need to seed the system VM template to the NFS secondary storage in 
the new zone before I create the zone, or does it get copied from the first 
zone SS when creating the second?
   * Is it possible to copy templates between zones directly without 
export/import?
   * Our eventual goal is S3 region-wide secondary storage later in the year. 
Has anybody done the conversion successfully? My lab tests have been 
challenging against a RiakCS backend, with a successful API call for the 
conversion, but failing snapshot copies from XenServer to S3. The lab was on 
XenServer 6.5 - I haven't tried 6.2SP1 with S3.

Thanks,

Chris
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