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VC fiber interconnect uplink ports to different SAN switches in same fabric?

December 18, 2014, 9:38 am
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We have a C7000 chassis with two Virtual Connect 20 port fiber interconnect modules.  We had two Brocade based SAN switches, each in it's own fabric.  Each interconnect went to a different switch, with all four external ports on each interconnect configured for the same fabric:

 

Interconnect bay 6

VC-FC port 1  "SAN_1"->SAN switch 1

VC-FC port 2  "SAN_1"->SAN switch 1

VC-FC port 3  "SAN_1"->SAN switch 1

VC-FC port 4  "SAN_1"->SAN switch 1

 

Interconnect bay 7

VC-FC port 1  "SAN_2"->SAN switch 2

VC-FC port 2  "SAN_2"->SAN switch 2

VC-FC port 3  "SAN_2"->SAN switch 2

VC-FC port 4  "SAN_2"->SAN switch 2

 

 

We've recently expanded our SAN structure with a second switch on each fabric.  Can we attach two of the uplinks of the interconnect to one SAN switch, and connect the other two interconnect ports to the second switch in the same fabric?

 

 

Interconnect bay 6

VC-FC port 1  "SAN_1"->SAN switch 1  

VC-FC port 2  "SAN_1"->SAN switch 1

VC-FC port 3  "SAN_1"->SAN switch 3 (same fabric as SAN switch 1)

VC-FC port 4  "SAN_1"->SAN switch 3 (same fabric as SAN switch 1)

 

Interconnect bay 7

VC-FC port 1  "SAN_2"->SAN switch 2 

VC-FC port 2  "SAN_2"->SAN switch 2

VC-FC port 3  "SAN_2"->SAN switch 4 (same fabric as SAN switch 2)

VC-FC port 4  "SAN_2"->SAN switch 4 (same fabric as SAN switch 2)

 

 

 

From what I understand, it should work OK, since the Virtual Connect uplink ports are configured to the "fabric", and the zoning on the SAN switches is based on the world wide name, so both switches in the same fabric would see the same names, but I was just looking for some confirmation.

 

Thanks.

Mike O.

 

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Re: VC fiber interconnect uplink ports to different SAN switches in same fabric?

December 21, 2014, 7:35 pm
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Hi Mike,

 

What you suggest appears to be true. To verify it, you may refer to  Figure 2: in the "FC Cookbook for HP Virtual Connect" on page 12. Click here for the cookbook.

 

Hope this helps you!!

 

 

Regards,

Vijayasarathy

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Re: VC fiber interconnect uplink ports to different SAN switches in same fabric?

December 22, 2014, 8:09 am
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Thanks, that looks to be exactly the info I'm looking for.   I had looked in the VC cookbook, but forgot about the fiber channel-specific one.

 

 

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Blade C7000 VC flexfabric 10gb 24port Bay 1,2,3,4 + HP Ethernet 1Gb 4-port 366M( mezzanie 1) ?

January 1, 2015, 5:43 pm
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Our company using C7000 blade with four VC flexfabric 10gb 24port (bay 1,2,3,,4) .

 

          Add a networkcard on the server blade (mezzanine card), I'd liketouse. ( To use VC bay 3,4)

 

 

          

          HP BL460c G7 +HP NC325m PCI Express Quad Port Gigabit Server Adapter ( 416585-B21)

          HP BL460c Gen8 +   HP Ethernet 1Gb 4-port 366M Adapter  (615729-B21)

 

          How wellabove thenetwork card isconnected to aVC flexfabric 10gb 24port ? (bay 3,4 )

 

           Please wait  your answer.

 

 

 

        

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VC FlexFabric-20/40 F8 stacking via 40Gb ports

January 5, 2015, 7:14 am
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Alexander had a question regarding cables to use for linking Virtual Connect modules:

 

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Does VC FlexFabric-20/40 F8 support stacking via 40Gb ports with

720196-B21         HP BLc 40G QSFP+ QSFP+ 1m DAC Cable

720199-B21         HP BLc 40G QSFP+ QSFP+ 3m DAC Cable

?

 

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Reply from Fred:

 

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Hi Alexander,

Yes, those cables are listed in the QuickSpecs (http://www8.hp.com/h20195/v2/GetPDF.aspx/c04329994.pdf) and the QSFP+ ports can be used for stacking.

 

*************

 

Comments?

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Support for active optical solution on SFP Part Number #455883-B21

January 5, 2015, 8:02 am
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Patti had a network cable question:

 

**********

 

Does the 455883-B21 SFP connector use a twinax/active optical solution?

 

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Comment from Scott:

The SFP referenced is optical. A DAC is a type of Twinax. They can be passive in short distances and active for longer distance.

 

And from Dan:

Patti, the part number you listed is a Fiber Short Range transceiver.

This requires a similar "SR" transceiver on the other end that matches the remote side vendor (so if a Cisco switch, use a Cisco transceiver on that side)

Then you use MultiMode fiber to connect the two transceivers.

OM3 and OM4 are 10Gb capable no problem.

The HP part number you gave uses an LC type connector which is fairly common on newer gear.

 

 

DAC cables are Twinax Copper cables, but they have the transceivers built in on both sides.

So you do NOT need a separate transceiver.

1m, 3m and 5m lengths are almost always Passive cables and cost under $200 USD.

7m and 10m lengths are usually Active cables in that the transceiver on each end has additional circuitry to boost the power.  Because of this they run up to around $900 USD.

But since SR Fiber transceivers run around $700-1000 each, and you need two, even the Active DACs are still a cheaper option.

 

 

Short version:

DACs comes in Passive and Active

Fiber comes SR and LR

The two are different technologies and cannot be mixed on the same link.

 

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Other comments?

 

 

 

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Re: Blade C7000 VC flexfabric 10gb 24port Bay 1,2,3,4 + HP Ethernet 1Gb 4-port 366M( mezzanie 1) ?

January 6, 2015, 12:36 am
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Hi

 

you will need to install these cards in Mezz1 on each server, however only 2 ports will be usable and will be connected to bay 3-4. then you can configure it through VCM

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Re: Blade C7000 VC flexfabric 10gb 24port Bay 1,2,3,4 + HP Ethernet 1Gb 4-port 366M( mezzanie 1) ?

January 6, 2015, 12:54 am
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Thank you very much.

 

Can I use port 5,6,7,8  on Flexfabric 10gb/24port ?

 

wait your answer...

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Stack a new C7000 VC FlexFabric-20/40 F8 with my current one

January 7, 2015, 1:09 pm
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Hi guys,

 

I'm wondering if I can stack a new C7000 with VC FlexFabric-20/40 F8 with my current one (which also has VC FlexFabric-20/40 F8 modules) without disrupting traffic flow on my current blades? Or will I need downtime?

 

Bgrds,

FOG

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Re: Blade C7000 VC flexfabric 10gb 24port Bay 1,2,3,4 + HP Ethernet 1Gb 4-port 366M( mezzanie 1) ?

January 7, 2015, 8:33 pm
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You mean on the enclosure level?

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Re: Stack a new C7000 VC FlexFabric-20/40 F8 with my current one

January 9, 2015, 12:59 am
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Hi FOG,

 

When two or more enclosures are stacked together, then remote enclosure's domain configuratiion will be erased. 

 

What is a base enclosure? - Well, the first Virtual Connect domain created on the first enclosure will become the Base Enclosure.

 

This will need planning and downtime for all the enclosures that are being stacked. For more information on stacking and scenarios, you refer to the Virtual Connect Multi-Enclosure Stacking Reference Guide. Refer section "Virtual Connect Domain Stack Planning" on page 4 of the current document.

 

You may also refer to the HP Virtual Connect FlexFabric Cookbook – With HP Virtual Connect Flex-20/40 F8 for scenarios.

 

Hope this helps!!

 

Regards,

 

Vijayasarathy

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Need suggestions to create Shared up link .

January 9, 2015, 10:06 am
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Hi

i am very new HP Virtual Connect and I am trying to fix a non HP recomended setup .

 

The purpose of this :

 

Currently our network is like this

 

FlexA/B -> HP 6125/XG-A/B>- cisco-A/B : its using UPlink set  "Trunk_6125GX"

the plan is to Remove HP 6125/XG-A/B

 

Flex-A/B -> Cisco-A/B : Uplink set "Cisco-7150 Uplink"

 

the question i want to ask is :

 

 

a)if i create Same VLAN  in " Cisco-7140 Uplink"which is defines in under Trunk_6125GX and move one server from Trunk_6125GX to Cisco-7140 Uplink

 

will it work ??

 

b) do i have to keep on eye any spceial routing?

 

c) Can i create multiple Uplink set for same  Bay example, currently I have Bay1 and Bay2, and  "Trunk_6125GX" uplink is using those 2 Bay,

now can i create new uplink set "Cisco-7140 Uplink" for same Bay and Bay2 ??

 

 

if you need i can share network diagram ,

please let me know, its very urgent.

Thanks

 

VC model : HP VC FlexFabric 10Gb/24-Port Module

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VC User assigned name

January 11, 2015, 8:16 pm
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How can I assign a name to the VC?  I see and currently the user assigned name is blank.  I want to specify a name.

 

Thanks.

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Re: VC User assigned name

January 11, 2015, 10:41 pm
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Hi,

 

Could you elaborate what you want to accomplish, perhaps with a screenshot?

 

Regards,

 

Vijayasarathy

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Virtual Connect FlexFabric Stacking with VCEM

January 12, 2015, 1:25 pm
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Hi, we've got a C7000 chasis with 2 Virtual Connect FlexFabric, managed by Virtual Connect Enterprise Manager.

 

It's already configured and running.

 

Now we need to stack a new C7000, with 2 new Virtual Connect FlexFabric.

 

Existing Virtual Connects have 4.10 firmware version, and the new ones come with 4.30 firmware version.

 

I've read the "Virtual Connect Multi-Enclosure Stacking Reference Guide", but it only explains how to do it from standard Virtual Connect Manager, not from VCEM.

 

Beeing a newbie to Virtual Connect there are some things that I'm not sure about.

 

Can I do the stacking from Virtual Connect Manager, or do I need to do it from VCEM?

Should I upgrade all virtual connects (existing and new) to 4.31 before stacking, or can I do it after stacking?

Is there a way to downgrade new Virtual Connects from 4.30 to 4.10 so I can stack them without updating the running ones?

 

In the Reference Guide it is not clear if I should cable the stacking links before or after adding the new enclosure to the VC Domain. When should I cable them?

 

 

Thanks.

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Re: VC User assigned name

January 12, 2015, 2:00 pm
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I need an evidence of the VC host name and IP address.  When i got this screenshot it does not show the hostname.  I guess it was never setup.  How can I do this?  Thanks!

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Re: Virtual Connect FlexFabric Stacking with VCEM

January 13, 2015, 2:08 am
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Hi,

 

You may refer to section'3 Managing VC Domains > Requirements for adding a VC Domain to a VC Domain Group on page 35' in the HP Virtual Connect Enterprise Manager 7.4 User Guide which states the following"

 

To add an unconfigured VC Module to a VC Domain Group, the following items must be identical:
• Interconnect bays location and model
• Enclosure model
• Uplinks of the network and Fibre Channel SAN Fabric
• Power state of the VC Modules

 

The above mentioned section starts on page 31 detailing the steps to be done to add a configured VC Domain to a VC Domain Group.

 

The firmware of the enclosures may be updated post the enclosure is discovered and managed by VCEM.

 

You may refer to section 'Downgrades' in the HP BladeSystem c-Class Virtual Connect Support Utility Version 1.10.1 User Guide  (VCSU) for more information and section 'Commands' to respective command.

 

VCSU is available for download from any of the Virtual Connect module's driver download page. One that is shown here is that of HP Virtual Connect FlexFabric-20/40 F8 Module for c-Class BladeSystem though this is common for all VC modules. Select operating system and then select Utility Tools to download the utility.

 

Hope this helps!

 

Regards,

 

Vijayasarathy

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VC Active Standby Issue

January 16, 2015, 6:46 am
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Hello All,

 

 

We have recently purchased a C7000 with 2 VC FlexFabric 10GB modules and i'm trying to configure these in Active/Active scenario.

 

I have tried few ways (see attachments)

 

1 - Create ONE Shared Uplink Set with a port from bay 1 and bay 2 into one trunk then created a server profile.

 

2 - Created TWO  Shared uplink Sets for each bay and created a trunk for each (trunk1 and trunk2)

 

Currently we have one HP A5800 switch with both ports configured as LACP.

 

Despite the above i can't get Active Active working, what am i missing? I have worked through the HP Cookbook for these settings.

 

Thanks

 

 

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Virtual Connect hostname

January 16, 2015, 8:21 am
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Hi!

 

I need evidence of the Virtual Connect hostname and IP address.  When I got this screenshot the hostname is not shown.  Maybe it was never setup.  If that is the case how can I setup the hostname for the Virtual Connect or where I can grb a screenshot showing both the hostname and IP address.

 

Thanks!

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Virtual Connect Brocade FC Zoning

January 18, 2015, 12:54 pm
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Hi All,

 

When connecting two Virtual Connect FC uplink ports from one VC interconnect module to a single Brocade switch is there a need to also include the VC uplink node WWNNs, in addition to the WWPNs, to allow for proper NPIV failover on the brocade switch?

 

 

Thanks

 

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