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Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 2, 2014, 7:52 am
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We are implementing a VC Flex-10 and VC FC 8/24 port solution and have some questions. The VC FC module is basically an intelligent pass thru module. We have 4 uplinks into the SAN fabric (actually 4 uplinks from IO bay 3 and 4 unlinks from IO bay 4) The SAN is dual redundant fabrics, A and B.

 

I thought the best practice is one target and one initator per zone. Is that still the best practice? In other words I would create a zone for server a and use switch port 1, create a second zone for server a and this time use switch port 2, etc. I would do this for all servers using SAN in the enclosure?

 

The FC module is using 4 connections into the fabric ( in a load balance sort of way) so the server a could use any 1 of the paths into the fabric based on traffic congestion of the "lower" numbered ports.

 

Can we zone all 4 ports per server in one zone since it may use all ports connected? We are not restricting any servers from using all four paths within Virtual Connect server profile(s).

 

Regards,

 

Louis

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Are AJ716A and AJ716B SFP+ (b-series) compatable?

December 2, 2014, 7:56 am
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incompatability between SFP+ (B-series) AJ716A (retired) and AJ716B (new version)?
 

3 weeks ago

All,

 

We have run into an issue with using the 8G SFP+, P/N AJ716B, into our SAN switches (HP Branded, Brocade 5100's). When connecting SAN fabric by using these SFP+'s in VC FC 8/24port modules, we don't get a connection. First I thought that maybe they have to match on both ports being used. Still no luck connecting.

 

When using the older AJ716A SFP+ in both ports, connection is made almost immediately.

We have just received new replacement equipment, part of that consists of more 8/24 port VC modules and AJ716B SFP+ for use with them.

 

They are both marked as (B-series SW) 8GB SFP+.....

 

Regards,

 

Louis

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Re: Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 3, 2014, 4:19 am
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Re: Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 3, 2014, 10:31 am
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Hi Vijayasarathy,

 

Thanks for your reply. I followed the VC FC cookbook to create, define and assign profiles to server blades.

My question was directed more to the HP SAN switch zoning of the VC FC module connections into the switch.

NPIV is set on the connected ports.

 

I will try to state my question more clearly. I will be referring to a single fabric (Fabric A). I have a server in bay6 with 8GB HBA. when this server logs in to the SAN fabric, it could be entering the fabric over 1 of 4 fiber connections, as we have 4 of the 8 external ports connected into a 8/40 port HP (brocade) switch. We zone by WWN here. So we can and do move servers to different enclosures as projects change, etc. As long as the server's WWN is in a defined zone, the server logs in.

 

With that in mind then I only have to zone for one port (of the 4) connected into the fabric for each server?

 

Regards,

 

Louis

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Re: Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 3, 2014, 10:40 am
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Could you also comment on my other question regarding the use of AJ716A (Bseries, retired) and AJ716B (Bseries, active PN)?

Regards,

 

Louis

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Re: Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 3, 2014, 11:15 am
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Hi, 

 

about zoning: when you do WWN zoning you generally just put the WWPN of the HBA and of the target port in the storage device in one zone. Rince and repeat for all HBA ports and all targets. No need to include any ports in switches (at least not with normal SANs without FCR or TI).

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Re: Additional uplink to shared uplink

December 3, 2014, 2:38 pm
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Re: Upgrade VC 4.30 to VC4.31 thru HP OneView

December 8, 2014, 9:58 am
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I think you should create a custom SPP in HP SUM and include VC Smart Component (probably CP025003.scexe).

Then, add that custom SPP to HP OneView and use it as a baseline for VC firmware update.

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Steps and prerequisite before firmware update Virtual Connect with no downtime ?

December 8, 2014, 3:44 pm
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Hi People,

 

Can anyone here please share your knowledge and procedures that I can follow to perform Virtual Connect Firmware update ?

 

I assume that the entire HP Blade servers running on VMware ESXi uplinks has been configured to use the NIC on different VC modules so that I can perform the upgrade without causing any downtime to the Virtual machines.

 

Thanks in advance.

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Urgent! Domain contains abnormal enclosures and profiles.

December 8, 2014, 9:55 pm
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Hi guys,

 

Its been a week  joining a new company and I am under system engineers to troubleshoot this issue. Please check out the images and fill in your suggestions. 

 

Hardware setup

 

Three enclosures HP Blade Server BL460c Gen 8. 

Two Virtual Connect FlexFabric 10Gb/24 Port. Both Active.

Two Cisco Catalyst 2960x series switch

One San Switch 48 port. 

FCoE port speed is 4 Gb. (Changing to 8 Gb, the X1- X4 ports are turning yellow).

EMC SAN storage.

Virtual Connect firware 4.30.

 

Host Vmware ESXi 5.5.

O.S. Red Hat Enterprise Linux 6.5.

Data Base Oracle.

 

So, can you guys say anything from looking at the pics. I will get more information. As I have to go and troubleshoot this issue.

 

Thanks.

 

 

 

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Re: Is there a best practice for SAN zoning an VC 8/24 port FC module?

December 9, 2014, 1:30 pm
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Interesting side note to this is:

 

When we zoned the server HBA WWNs into the fabric along with a target port, we still couldn't see the HBAs.

 

It was only when we also added the VC 8/24port FC uplinks WWN's could we see the servers. If we had either one of the two WWNs zoned to a target, we couldn't get to storage. If the HBA, VC FC port connections AND storage target...success!

 

Maybe this will help someone elso...

 

Regards,

 

louis

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Re: Hp Blade and Virtual connect Firmware compatibility.

December 9, 2014, 7:30 pm
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Hi Suresh,

 

So how did you end up with the solution before ?

Please share it here.

 

Thanks

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Re: the virtual connection flex-10 interconnection configuration change

December 9, 2014, 8:10 pm
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So how did you finally end up with the solution or the situation ?

 

please share it here :-)

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Re: Steps and prerequisite before firmware update Virtual Connect with no downtime ?

December 10, 2014, 2:50 am
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Hi

 

Below are the steps I follow:

1- Confirm your current firmware and the new firmware version

2- If the current one is too old I normally run multi phase’s upgrade, for example the current is 3.30, and I will go to 3.70 then 4.0 then 4.31 the latest as of now

3- Backup your virtual connect configuration and take show all through putty session

4- Make sure you have downtime or at least your users may expect some network disruption, I will explain why

3- Install VCSU

4- Run VCSU and issue the command healthcheck to make sure everything is ok

5- If it is ok then run VCSU again and issue the command update, type the OA ip and user name 

6- When it asks you about activation method choose "manual" in this case it will not activate automatically

7- Wait for the firmware upload and the message of completion and the log file location

8- Identify which bay is acting as primary, will assume it is bay1

9- Log in to OA and restart the secondary module (assume it is in bay2) give it 5 to 10 min, then confirm that it took the new firmware

10- Log in to VC interface and failover the VC manager to the secondary; in this case your original primary will become secondary. Bay1 is the new secondary and bay2 is the new primary

11- Wait for the status indicator on the top middle to become green, it normally takes few minutes

12- From OA again restart the original primary module, in our case it is bay1, give it 5 to 10 min, and then confirm that it took the new firmware. IMPORTANT, when you restart the original primary module, you may lose connectivity for few seconds, if you are running ping -t that would be around 5-10 times out, that’s why you may need step#4

13- Repeat steps 5 to 12 if you are doing multi phases upgrade.

 

Hope the above is helpful and not too long :) 

 

 

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Re: Steps and prerequisite before firmware update Virtual Connect with no downtime ?

December 10, 2014, 4:11 am
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Many thanks for the detailed steps MSH.

 

It is better to have long detailed steps than too simple but ends up with disaster :-/

I heard from one of my friend that during the VC firmware update (not sure which version) the VLAN configuration was reset to default in both modules, resulting in total downtime for all of the production VMs.

 

so I guess, by following your steps, I can do it during the working days after hours since I got redundant VC modules and each VMware vSwitch got uplinks in different VC modules.

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What are the consequenc​es of setting NTP servers in EBIPA for Interconne​ct bays?

December 11, 2014, 2:28 am
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Hi,

I want to setup EBIPA addresses to my VirtualConnect devices in a c7000 enclosure G3.

 

I see a difference against EBIPA settings for Device Bays: In the Interconnect Bays EBIPA settings you have the option of adding NTP servers.

 

What happens if I don´t write NTP servers in there?? From where the VirtualConnect will get the date/time info?. I cannot find anything in the HP manuals.

 

What are the recommendations, to write on the EBIPA settings the same NTP servers used for the enclosure?

 

Thanks

 

interconnectNTP.PNG

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Re: What are the consequenc​es of setting NTP servers in EBIPA for Interconne​ct bays?

December 11, 2014, 3:37 am
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IIRC virtual connect get the time from OA, other interconnects may use this setting.

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Re: What are the consequenc​es of setting NTP servers in EBIPA for Interconne​ct bays?

December 11, 2014, 7:28 am
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thanks Torsten.

 

You mean then that leaving in blank the 'NTP servers' field on EBIPA  Interconnect settings (but filling the rest of the fields), the VCs will get date/time from OA?

 

BR,

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Virtual Connect (VC) port shutdown command

December 15, 2014, 10:04 am
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Ajith had a VC question:

 

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

 

Hi All,

 

How can I shutdown ports in virtual connect flex fabric?

 

Eg:- I want to shutdown X1 port in Bay1 from command line , how can I achieve this?

 

***********

 

Reply from Robert:

 

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

 

I am not sure if this is your goal.  You can force the uplink to an unlinked status by setting the speed on the VC network or Shared Uplink Set to disabled.  Assuming it is associated with a V-net or SUS.

 

Examples:

 

  - Change the port speed of a network port:

 

    ->set uplinkport enc0:1:X2 Network=MyNetwork Speed=Disabled

    ->set uplinkport enc0:2:X4 UplinkSet=MyUplinkSet Speed=Disabled

 

To return to linked status, set the speed back to ‘Auto’.

 

**********

 

And info from Vincent:

 

**********

 

You can't. "Virtual Connect is not a switch"™

You can remove the uplink port from its uplink set which should unconfigure it, but you can't just administratively shut it down.

 

**********

 

Comments?

 

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Need DCBX Version(s) Implemented in VC Versions 3.51, 3.70, 4.01, 4.10, 4.30

December 15, 2014, 10:35 am
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A question from Greg:

 

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

 

Folks,  looking for guidance on where to find the version(s) of DCBX implemented in the following VC versions. 

 

3.51

3.70

4.01

4.10

4.30

 

I believe VC 4.30 is DCBX 1.1 ( also referred to as Gen-2 ? )  not sure about the other VC versions.

 

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

 

Info from Mark:

 

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

 

I created this table to explain how DCBX is implemented within VC/LLDP. This is how it works.

And the known cisco issue http://h20566.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?docId=c04173675&ac.admitted=1412790274797.876444892.199480143

So for Flex-10 modules, the problem would occur when updating to 4.01/4.10 if running older IOS but would not occur past VC 4.20.

For the Flex-Fabric modules, (x5-x8) the problem could also occur but not in VC 4.20 or later.

 

webpic347.jpg

 

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

 

Comments?

 

DCBX = Data Center Bridging Exchange Protocol.

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