DELL FX2 is comming

Michael Dell announced FX2 yesterday at DellWorld 2014.

FX2 is new 2U flexible chassis for sleds. Sleds are basically hardware cartridges having one of three roles listed below

• flexible server (FC) - FC630, FC430, FC830
• flexible micro servers (FM) - FM120X4
• flexible disk enclosures  (FD) - FD332

You can look at FX2 overview video below. It is marketing video however it is nice illustration how revolutionary this platform is.


If you want more deeper FX2 review I would recommend to read  Kevin Houston's blog post "A First Look at Dell’s FX Architecture".

I personally really like this form factor as it is more granular and therefore more flexible then full blade chassis and still allow high density and simplified cable management. You can also use one or two low profile PCIe cards for FX servers. These PCIs cards are accessible from the rear of chassis. Anybody who works with servers for long times probably known that 2U form factor always was and still is the favorite compute form factor in datacenters.

FX2 Chassis leverages DELL PowerEdge FN IO Aggregator which is actually new version of blade DELL PowerEdge M1000e IO Aggregator  redesigned for FX2 form factor.Both these IO Aggregators are based on Force10 technology.


If you ask me I can see lot of nice use cases for this platform including classic VMware vSphere deployments with shared storage, VMware VSAN, EVO:Rail, Nutanix, etc.

What do you think about this hardware platform?
Share your opinions in comments.
And as always any comment is welcome.

DELL Force10 I/O Aggregator 40Gb Port Question

Today I have received question how to inter connect DELL Force10 IOA 40Gb uplink with DELL Force10 S4810 top of rack switches.

I assume the reader is familiar with DELL Force10 datacenter networking portfolio.

Even if you have 40Gb<->40Gb twinax cable with QSFPs between IOA and Force10 S4810 switch it is in IOA side configured by default as 4x10Gb links grouped  in Port-Channel 128.

If you connect it directly into 40Gb port in Force10 S4810 switch the 40Gb port is by default configured as 1x40Gb interface.

That’s the reason why it doesn’t work out-of-the-box. Port speeds are simply mismatched.

To make it correct you have to change 40Gb switch port to 4x10Gb port. Here is the S4810 command to change switch port from 1x40Gb to 4x10Gb:

stack-unit 0 port 48 portmode quad

Here is the snip from S4810 configuration where 40Gb port 0/48 is configure as 4x10Gb port in port-channel 128

interface TenGigabitEthernet 0/48
no ip address
!
port-channel-protocol LACP
  port-channel 128 mode active
no shutdown
!
interface TenGigabitEthernet 0/49
no ip address
!
port-channel-protocol LACP
  port-channel 128 mode active
no shutdown
!
interface TenGigabitEthernet 0/50
no ip address
!
port-channel-protocol LACP
  port-channel 128 mode active
no shutdown
!
interface TenGigabitEthernet 0/51
no ip address
!
port-channel-protocol LACP
  port-channel 128 mode active
no shutdown

interface Port-channel 128
no ip address
portmode hybrid
switchport
no shutdown