in regards vlan tagging and storage network

[Ivan Rodriguez <iv...@gmail.com>]

Hi Cloudstack users,

We are trying to roll out cloudstack 4.2.1 with xen hypervisor 6.2
on dell blades, the hypervisor vlan is native on the switches
so no tagging is needed there but the storage is on a different one
we configure the hypervisor connect that to cloudstack but
when the management server is trying to fired up the secondary storage vm
it fails in mounting the secondary storage on the xen hypervisor
we are only configuring the bond interface active passive and the management
network, we shouldn't need to configure the vlan tagging for the storage
is it ? that should be done by cloudstack itself isn't ?

Also primary storage and secondary storage are presented through the same
ip address could this cause any issues ?

And finally hypervisor layer should or shouldn't be able to contact storage
layer ?
I read somewhere that they shouldn't communicate.

BTW we had a taste ot the new cloudstack with new features of xen 6.2 it
rocks
Great job

Cheers

Re: in regards vlan tagging and storage network

[Geoff Higginbottom <ge...@shapeblue.com>]

Ivan,

Combining Primary and Secondary storage into the same Bond / VLAN is perfectly OK.  The trick is you need to apply an IP to each XenServer and add the VLAN tag.  When you configure the 'storage' network in CloudStack you must leave the VLAN blank.  The Storage network is only used by the SSVM when it accesses Secondary Storage, and as you have applied the VLAN Tag on the Hypervisor, there is no need for it to be applied to the SSVM Storage Interface.  The HyperVisors also directly access Secondary Storage when deploying VMs from new Templates as they mount it to copy the Template from Secondary to Primary - the SSVM does not get involved in this process.

Regards

Geoff Higginbottom
CTO / Cloud Architect

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On 28 Feb 2014, at 10:20, "Ivan Rodriguez" <iv...@gmail.com>> wrote:

Hi Cloudstack users,

We are trying to roll out cloudstack 4.2.1 with xen hypervisor 6.2
on dell blades, the hypervisor vlan is native on the switches
so no tagging is needed there but the storage is on a different one
we configure the hypervisor connect that to cloudstack but
when the management server is trying to fired up the secondary storage vm
it fails in mounting the secondary storage on the xen hypervisor
we are only configuring the bond interface active passive and the management
network, we shouldn't need to configure the vlan tagging for the storage
is it ? that should be done by cloudstack itself isn't ?

Also primary storage and secondary storage are presented through the same
ip address could this cause any issues ?

And finally hypervisor layer should or shouldn't be able to contact storage
layer ?
I read somewhere that they shouldn't communicate.

BTW we had a taste ot the new cloudstack with new features of xen 6.2 it
rocks
Great job

Cheers
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