Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-20 Thread Patrick Russell 
You need a NIC that supports it. We are currently using the Broadcom 
Corporation BCM57840 NetXtreme II 10 Gigabit Ethernet adapter. However, 
multiple vendors sell a converged network adapter that should work.

You’ll also need to verify that your switch supports FCoE. This is where you’ll 
connect up to your SAN fabric.

If you’re in the market for new compute blades as well, you can go the route we 
did. The Dell FX2 platform has a couple of 4 port FCoE and Network switch in 
the back of each chassis so you can cable up directly to the fabric without 
changing your top of rack switches to FCoE. Here’s some more information:

http://www.dell.com/us/business/p/poweredge-fx/pd

Specifically the FN2210S IO Module for that chassis:

http://www.dell.com/us/business/p/fn-io-aggregator/pd


-Patrick

On Oct 20, 2015, at 7:23 AM, Kapetanakis Giannis 
> wrote:

On 19/10/15 18:14, Patrick Russell wrote:
We use FCoE in our setup. All the configs are in /etc/fcoe/ and fcoeadm is part 
of the ovirt-node iso. So this should work the same as setting up FCoE on 
CentOS or RHEL.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/fcoe-config.html

-Patrick


Do you use special hardware (switch or nics) for FCoE?

G

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Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-19 Thread Kapetanakis Giannis 

On 18/10/15 16:44, Nir Soffer wrote:

I still don't understand the problem you are trying to solve.

Can you explain the network topology?

- Do you have FC storage server, switch?
- How many nodes to do you have with FC HBA?

Do you want to add nodes without FC HBA, and you want to consume
the FC storage?

Or you want to add nodes with FC HBA, but you don't have an FC switch?

Nir



I have FC storage, FC switch and and with FC HBAs.

I want to add new nodes to the FC storage and to the ovirt datacenter 
without using FC directly (no HBA, no switch).


G
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Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-19 Thread Patrick Russell 
We use FCoE in our setup. All the configs are in /etc/fcoe/ and fcoeadm is part 
of the ovirt-node iso. So this should work the same as setting up FCoE on 
CentOS or RHEL.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/fcoe-config.html

-Patrick

On Oct 19, 2015, at 2:34 AM, Kapetanakis Giannis 
> wrote:

On 18/10/15 16:44, Nir Soffer wrote:
I still don't understand the problem you are trying to solve.

Can you explain the network topology?

- Do you have FC storage server, switch?
- How many nodes to do you have with FC HBA?

Do you want to add nodes without FC HBA, and you want to consume
the FC storage?

Or you want to add nodes with FC HBA, but you don't have an FC switch?

Nir


I have FC storage, FC switch and and with FC HBAs.

I want to add new nodes to the FC storage and to the ovirt datacenter without 
using FC directly (no HBA, no switch).

G
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Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-18 Thread Nir Soffer 
On Fri, Oct 16, 2015 at 1:31 PM, Kapetanakis Giannis
 wrote:
> On 16/10/15 01:01, Nir Soffer wrote:
>>
>>
>>
>> >
>> > I thought something like this might work:
>> >
>> > node[1]: FC - ISCSI <-> node[2]: ISCSI - FC
>>
>> I dont follow - how do you want to share your fc storage over iscsi?
>>
>> And what are these nodes? Storage nodes? Hypervisors?
>>
>> Nir
>>
>
> The initial idea was to share FC over IP network. All nodes are ovirt nodes
> (hypervisors).
>
> One node see the FC storage share as a block device. Take this block device
> and share it over iscsi to node[2].
> The node[2] will see the block device and create a new FC target to use it
> itself...
>
> I know, its science fiction...

I still don't understand the problem you are trying to solve.

Can you explain the network topology?

- Do you have FC storage server, switch?
- How many nodes to do you have with FC HBA?

Do you want to add nodes without FC HBA, and you want to consume
the FC storage?

Or you want to add nodes with FC HBA, but you don't have an FC switch?

Nir

> After reading a bit on the subject another solution would be FCoE vn2vn but
> this probably requires hardware.
> Specific switches with DCB and FIP snooping which i don't have.
>
> Any idea to extend FC to nodes without FC HBAs is welcome.
>
> G
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Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-16 Thread Kapetanakis Giannis 

On 16/10/15 01:01, Nir Soffer wrote:



>
> I thought something like this might work:
>
> node[1]: FC - ISCSI <-> node[2]: ISCSI - FC

I dont follow - how do you want to share your fc storage over iscsi?

And what are these nodes? Storage nodes? Hypervisors?

Nir



The initial idea was to share FC over IP network. All nodes are ovirt 
nodes (hypervisors).


One node see the FC storage share as a block device. Take this block 
device and share it over iscsi to node[2].
The node[2] will see the block device and create a new FC target to use 
it itself...


I know, its science fiction...

After reading a bit on the subject another solution would be FCoE vn2vn 
but this probably requires hardware.

Specific switches with DCB and FIP snooping which i don't have.

Any idea to extend FC to nodes without FC HBAs is welcome.

G
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Re: [ovirt-users] integrate iSCSI and FC on the same oVirt datacenter

2015-10-15 Thread Nir Soffer 
בתאריך 14 באוק׳ 2015 3:11 אחה״צ,‏ "Kapetanakis Giannis" <
bil...@edu.physics.uoc.gr> כתב:
>
> Hi,
>
> Not sure if this is the right place to ask but maybe someone can provide
directions for my problem.
>
> I have a full FC setup with FC switch and FC HBAs on Linux (Centos) to
access my storage.
>
> However we cannot afford expanding our FC infrastructure thus making it
hard for us to add more nodes in the oVirt setup.
> FCoE requires compatible switches and adapters (correct?) which is also
out of budget.
> Our storage supports only FC.
>
> I thought something like this might work:
>
> node[1]: FC - ISCSI <-> node[2]: ISCSI - FC

I dont follow - how do you want to share your fc storage over iscsi?

And what are these nodes? Storage nodes? Hypervisors?

Nir

>
> share the FC block device over iscsi and then create a new FC
target+initiator on the new node with same FC lun as the original?
>
> Could this work? How? Other ideas?
>
> regards,
>
> Giannis
> ps.
> a) a solution would also be to migrate completely to iSCSI but I'm trying
to avoid that atm.
> b) another one would be to create a second datacenter for iSCSI but also
trying to avoid that if I can
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