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Monday, October 27, 2014

Force10: 40GB to 4 X 10GB breakout cable

From: Bean, Bob
Sent: Thursday, October 23, 2014 09:08 AM Central Standard Time
To: Cassels, George; Beck, J; Pereira, Jacobo; WW Networking Domain
Subject: RE: 40GB to 4 X 10GB breakout cable

On the FTOS side use:

intf-type cr4 autoneg


-----Original Message-----
From: Cassels, George
Sent: Thursday, October 23, 2014 08:28 AM Central Standard Time
To: Beck, J; Pereira, Jacobo; WW Networking Domain
Subject: RE: 40GB to 4 X 10GB breakout cable

So far, we've used the following commands...

service unsupported-transceiver
no errdisable detect cause gbic-invalid

Now it doesn't errdisable, but still goes down/down with the same error as mentioned below.

________________________________________
From: Beck, J
Sent: Thursday, October 23, 2014 9:20 AM
To: Cassels, George; Pereira, Jacobo; WW Networking Domain
Subject: RE: 40GB to 4 X 10GB breakout cable

Have you set the command on the Cisco side to support noncertified transcievers?


Excuse any misspelled words as this is sent from a smart phone.

John Beck | Dell
Office of Technology and Architecture | CTO

-----Original Message-----
From: Cassels, George
Sent: Thursday, October 23, 2014 08:17 AM Central Standard Time
To: Pereira, Jacobo; WW Networking Domain
Subject: RE: 40GB to 4 X 10GB breakout cable


Jacobo,
     It is Option A below...
________________________________________
From: Pereira, Jacobo
Sent: Thursday, October 23, 2014 9:09 AM
To: Cassels, George; WW Networking Domain
Subject: RE: 40GB to 4 X 10GB breakout cable

What type of breakout are you using?

a) QSFP+ to 4xSFP+ ?
b) QSFP+ Transceiver with MTP to 4xLC cable?

-----Original Message-----
From: Cassels, George
Sent: Thursday, October 23, 2014 07:59 AM Central Standard Time
To: WW Networking Domain
Subject: 40GB to 4 X 10GB breakout cable


I am doing some testing at a customer site with the Z9000 to Cisco 10GB switch.  When we try to use the 40GB to 10GB breakout cable we are getting the following error that disables the ports on the cisco side.

Duplicate vendor-id and serial number

Setup is a two port connection setup in a LAG using LACP.

Is there any known fixes around this issue?  Also there is no issue if you plug in just one of the ports on the 10GB side.

Thanks,
George

Thursday, October 23, 2014

USB serial adapter in FreeBSD

Last modified: Jun. 13, 2009

Contents
1 - Summary
2 - Kernel options
3 - Plug in USB serial adapter
4 - Connect to router


1 - Summary

This guide explains how to use a USB serial adapter in FreeBSD. It also
explains how to connect to a device like a router over a serial connection.
As an example we will connect to a Cisco router. This has been tested in
FreeBSD 7.0 and 7.1.


2 - Kernel options

You will need to have the following options in your kernel.
  device          uhci                    # UHCI PCI->USB interface
  device          ohci                    # OHCI PCI->USB interface
  device          ehci                    # EHCI PCI->USB interface (USB 2.0)
  device          usb                     # USB Bus (required)
  device          ugen                    # Generic
  device          ucom                    # USB serial support
  device          uplcom                  # USB support for Prolific PL-2303 serial adapters
If you didn't already have them in your kernel you will need to reboot before
using the USB serial adapter.


3 - Plug in USB serial adapter

Log in with a normal user account. Plug in the USB serial adapter into the
computer and check to make sure it was detected properly.
# dmesg | tail -n 1
ucom0: Prolific Technology Inc. USB-Serial Controller, class 0/0, rev 1.10/3.00,
addr 2 on uhub0

Find what the actual device is listed as.
# ls -l /dev/cuaU*
crw-rw----  1 uucp  dialer    0, 116 Mar  2 18:54 /dev/cuaU0
crw-rw----  1 uucp  dialer    0, 117 Mar  2 18:54 /dev/cuaU0.init
crw-rw----  1 uucp  dialer    0, 118 Mar  2 18:54 /dev/cuaU0.lock
In our example it's listed as /dev/cuaU0.


4 - Connect to router

Connect a serial cable from the USB serial adapter to the console port on
the back of the Cisco router. Type the following and press [Enter] to connect.
# sudo cu -l /dev/cuaU0 -s 9600
Connected

User Access Verification

Username: xxx
Password: xxx
Welcome to router.test.com!
router>

When you are done type exit.

router>exit

router con0 is now available
Press RETURN to get started.

Type '~.' to exit. Press 'Shift+~' then period.

~
[EOT]

Wednesday, October 15, 2014

Force10 Internal Firmware repository

PoE max power loss

This is how you would calculate the max power loss on a 100m Cat6 Cable:

Typical DC power resistance loss in CAT6
Typical Cat6 UTP has a 7ohm/100m conductor resistance, resulting in a 7ohm/100m loop resistance. This is 1/3 the (worst case) loop resistance the 802.3af standard will accept.

Voltage Drop in typical data cable
 2* (0.175)*7 =2.5V

@Power dissipated (Pd) in typical data cable
Pd per wire is (0.175A)2 * 7 ohms = 0.214 W per wire

Power dissipated on 2 wires on 2 pairs is:
4 * 0.214 = 0.858 W maximum typical power dissipated per data cable
Note that the 802.3af standard tolerates a 2.45W cable loss, but typical Cat6 UTP cable will result
in only 0.858 W DC power loss over 100m.

Thursday, October 9, 2014

iDRAC 8

iDRAC8 with Lifecycle Controller – summary

iDRAC8 with Lifecycle Controller delivers revolutionary systems management capabilities:
-          Quick Sync bezel provides at-the-server management through NFC-enabled Android devices using the free DELL OpenManage Mobile app.  Configure a server and collect server inventory with a simple “tap” between the server bezel and mobile device.
-          Zero-Touch Auto Configuration can deploy a server out of the box with no intervention required; reducing server configuration time by as much as 99%.  Just rack, cable, and walk away.
-          iDRAC Direct lets customers use a USB cable or a USB key to provide configuration information to the iDRAC.  No more crash cart!
-          Simplify motherboard replacement with Easy Restore: key settings, such as BIOS, NIC, and iDRAC as well as licenses are automatically restored from the front panel.
-          Agent-free, real-time RAID management and configuration: use iDRAC to create and manage virtual disks, without reboots!
-          Increase datacenter security: Support for UEFI Secure Boot, and new System Erase capabilities for server repurpose/retirement, and new SNMP v3 Trap support.
-          Built-in Tech Support Report replaces the need for downloaded support tools; health reports are built right into iDRAC and can be uploaded to Dell Support.

The BEST PLACE TO START for Technical Papers/blogs/videos
www.delltechcenter.com/idrac  - updated with latest iDRAC and LC information

Customer facing presentation – on SalesEdge

iDRAC8 Quick Sync with OpenManage Mobile
note – OMM 1.1 is now available on the Google Play store
also – this video is available on www.delltechcenter.com/idrac

Sketch videos on you tube – as well as on www.delltecenter.com/idrac
http://youtu.be/ayEZXCL6Zdw - Freedom (OpenManage Mobile and iDRAC8 Quick Sync)
http://youtu.be/deNJDD3mLkY - Staying above the flood (Big Data)
http://youtu.be/ru-3Gc-t_UM - Simplified Management at the box (iDRAC Direct)


Tech Papers to support Dell 13G Systems Management claims – as well as on www.delltecenter.com/idrac

Support Docs on www.dell.com/support
Here you will find
·         iDRAC8 User Guide
·         iDRAC8 Release Notes
·         Lifecycle Controller User Guide
·         Racadm User Guide
·         iDRAC Service Module (iSM) Install Guide
·         SNMP and EEMI Guides

iDRAC – CMC – OME Trial/Evaluation Licenses are NOW ON SALESEDGE
·         30 day eval for iDRAC7 Enterprise
·         30 day eval for iDRAC8 Enterprise
·         30 day eval for CMC Enterprise for FX2
·         30 day eval for CMC Enterprise for VRTX
·         90 day eval for OME Server Configuration Management
·         See 411 for more details http://salesedge.dell.com/doc?id=0901bc82808a7078&ll=sr
·         Yes, you can send these to your customer



INTERNAL

Train the trainer deck – on SalesEdge

Dell internal only SourceBook - on SalesEdge


M630 NIC Options

4x1Gb – Broadcom & intel (new for 13g)
2 x 10Gb  - qlogic 57810, intel x520, and Emulex (same as available on m620)
4x10Gb  - qlogic 57840 (same as on m620)
In Q1cy15 we add new intel “Fortville” x710 controllers
2x10Gb

4x10Gb

Tuesday, October 7, 2014

DELL Storage SC4020 800GB Tier 1 SSD


We are pleased to announce the availability of a new drive – 800GB Tier 1 (Mixed Use) SSD – the first of its kind in an SC system. This drive type is to be used as a Tier 1 SSD similar to the existing 200GB/400GB write intensive (WI) drives. The SCOS will identify this drive with the same WI classification and will use the same tier as the 200GB and 400GB WI SSDs.  The industry is referring to these drives types as “mixed use (MU)” drives but from a Dell Storage perspective, these are used and tiered the same way as the Write Intensive (WI) SSDs.

Dell Storage is shifting to mixed use drives for a number of reasons:
1.       As new generations of SSDs are released, WI and MU drives will offer similar write performance.
2.      As capacity grows, MU drives offer similar endurance as the smaller WI drives when comparing total petabytes written in the drives life. 
3.      Field and customer data has helped determine that MU drives offer sufficient write endurance for even the most write intensive environments. 
4.      Mixed use drives offer higher capacity at a lower $/GB than comparable WI drives.
5.      The broader SSD market is making a shift to MU drives.

Table 1: Comparison of WI/MU/RI Drives for Dell Compellent

Dell Storage Use
Write Intensive
Read Intensive
Market Terminology
Write Intensive (WI)
Mixed Use (MU)
Read Intensive (RI)
Workload
Mainstream Applications
Any usage
Mostly Read
90/10 R/W Mix
Used with Compellent
Yes
Yes
Capacities
200/400 GB
800GB
1.6 TB
Endurance (Full writes / Day)*
10-30
<3
Endurance (written PBs)*
Up to 30PB
8PB
Random Read IOPS*
Up to 20K +
14K +
Random Write IOPS*
11K +
8K +
4K +
Sustained Write Bandwidth*
200-250 MB/s
150-225 MB/s
50-100 MB/s
List $/GB
Up to $31
$16.60
$5.25
* These performance values are for individual drives during benchmark testing. These values do not reflect actual system performance values. Values are expected to differ once drives are managed in the system with RAID virtualization and other system functions.

It is important to note that we recently moved to a new warranty policy that protects SSDs in Compellent Systems for the full length of a system’s warranty, regardless of wear or maximum rated life.