Scott Lowe

APRIL 15, 2022

Xavier Avrillier walks readers through using Antrea (a Kubernetes CNI built on top of Open vSwitch—a topic I’ve touched on a time or two) to provide on-premise load balancing in Kubernetes. Servers/Hardware. Cabling is hardware, right? Some of it is still too advanced for me right now. Virtualization.

Linux 74

Linux Load Balancer IPv6 Licensing 74

Scott Lowe

OCTOBER 14, 2017

Romain Decker has an “under the hood” look at the VMware NSX load balancer. Servers/Hardware. This graphical summary of the AWS Application Load Balancer (ALB) is pretty handy. Abdullah Abdullah shares some thoughts on design decisions regarding NSX VXLAN control plane replication modes.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 60

Scott Lowe

FEBRUARY 16, 2017

The rise of the disaggregated network operating system (NOS) marches on: this time, it’s Big Switch Networks announcing expanded hardware support in Open Network Linux (ONL) , upon which its own NOS is based. Servers/Hardware. Cormac Hogan has a brief update on storage options for containers on VMware.

Vmware 60

Vmware Linux Storage Load Balancer 60

Scott Lowe

JUNE 8, 2018

Kamal Kyrala discusses a method for accessing Kubernetes Services without Ingress, NodePort, or load balancers. Servers/Hardware. AWS adds local NVMe storage to the M5 instance family; more details here. What I found interesting is that the local NVMe storage is also hardware encrypted.

Load Balancer 60

Load Balancer Vmware Storage Intel 60

Scott Lowe

APRIL 6, 2017

Servers/Hardware. Here’s a Windows-centric walkthrough to using Nginx to load balance across a Docker Swarm cluster. Brian Ragazzi shares a lesson learned the hard way regarding VVols: place the VSM/VASA on a non-VVol storage location. Yves Fauser discusses NSX integration with Kubernetes in this blog post.

Vmware 60

Vmware Linux Storage Network 60

Scott Lowe

AUGUST 27, 2021

Servers/Hardware. Rudi Martinsen has an article on changing the Avi load balancer license tier (this is in the context of using it with vSphere with Tanzu). I never found the root cause, but we did find a workaround; however, along the way, someone shared this article with me. Plastic microchips ? That’s kind of cool.

Linux 90

Linux Load Balancer Malware Virtualization 90

Scott Lowe

AUGUST 6, 2021

Here’s a quick look at using Envoy as a load balancer in Kubernetes. Servers/Hardware. Since taking my new job at Kong, I’ve been spending more time with Envoy, so you’ll see some Envoy-related content showing up in this Technology Short Take. I hope this collection of links has something useful for you!

Open Source 60

Open Source Load Balancer WAN Architecture 60

Scott Lowe

SEPTEMBER 27, 2019

The “TL;DR” for those who are interested is that this solution bypasses the normal iptables layer involved in most Kubernetes implementations to load balance traffic directly to Pods in the cluster. Servers/Hardware. Unfortunately, this appears to be GKE-specific. Nothing this time around. Virtualization.

Load Balancer 60

Load Balancer Cloud Applications Vmware 60

Scott Lowe

AUGUST 17, 2018

Servers/Hardware. Check out these articles talking about IPVS-based in-cluster load balancing , CoreDNS , dynamic kubelet configuration , and resizing persistent volumes in Kubernetes. If you’re not familiar with VPCs and associated AWS constructs, you should read this article. It’s really good. Virtualization.

Load Balancer 60

Load Balancer Storage Network Linux 60

Scott Lowe

SEPTEMBER 22, 2017

Servers/Hardware. The series starts with part 0 (preparation), and continues with part 1 (mostly about rpm-ostree ), part 2 (container storage), part 3 (rebase, upgrade, and rollback), part 4 (package layering and experimental features), and part 5 (containerized and non-containerized applications). Virtualization.

Storage 60

Storage Vmware Load Balancer Network 60

Scott Lowe

JUNE 21, 2019

David Holder walks through removing unused load balancer IP allocations in NSX-T when used with PKS. Servers/Hardware. Software company Agile Bits recently announced support for U2F-compatible hardware security keys in their 1Password product. I’m looking forward to seeing how NaaS evolves.

Network 60

Network Load Balancer Storage Applications 60

Scott Lowe

AUGUST 27, 2021

Servers/Hardware. Rudi Martinsen has an article on changing the Avi load balancer license tier (this is in the context of using it with vSphere with Tanzu). I never found the root cause, but we did find a workaround; however, along the way, someone shared this article with me. Plastic microchips ? That’s kind of cool.

Linux 60

Linux Load Balancer Malware Virtualization 60

Scott Lowe

OCTOBER 5, 2012

Erik Smith, notably known for his outstanding posts on storage and FCoE, takes a stab at describing some of the differences between SDN and network virtualization in this post. Servers/Hardware. Is Cisco’s Insieme effort producing a storage product? storage enhancements. It starts here. Technology Short Take #25.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

NOVEMBER 9, 2018

Continuing on that Envoy theme, you may find this article by Matt Klein—one of the primary authors of Envoy—helpful in understanding some of the concepts behind modern load balancing and proxying. Servers/Hardware. Many of these concepts had direct impacts on the design of Envoy. Useful nevertheless, though.

Load Balancer 60

Load Balancer Operating Systems Intel Hardware 60

All Things Distributed

MAY 8, 2012

of administrative tasks such as OS and database software patching, storage management, and implementing reliable backup and disaster recovery solutions. pricing starts at $0.035/hour and is inclusive of SQL Server software, hardware, and Amazon RDS management capabilities. License Includedâ??

Development 116

Development Windows Disaster Recovery Licensing 116

Scott Lowe

SEPTEMBER 12, 2012

As a provider, Expedient has to balance five core resources: compute, storage (capacity), storage (performance), network I/O, and memory. VM-to-VM (on the same host) via a hardware-based virtual switch in an SR-IOV network interface card (NIC). In this case, the switching is done in hardware in the SR-IOV NIC.

Intel 109

Intel Virtualization Data Center Network 109

Scott Lowe

FEBRUARY 24, 2018

Viktor van den Berg writes on deploying NSX load balancers with vRA. Servers/Hardware. IPVLAN is a low-latency means of providing IP connectivity to containers. VPCs, or Virtual Private Clouds, are Amazon’s software-defined networking mechanism for workloads running on AWS.). Nothing this time around, sorry!

Vmware 60

Vmware Load Balancer Network Open Source 60

Scott Lowe

NOVEMBER 16, 2015

Servers/Hardware. Sean Collins has an article on building a cheap, compact, and multinode DevStack environment for a home lab that lays out some server hardware decisions and the tools he uses to manage them. Is VMware headed to turning VSAN into a generic storage platform that is no longer tied to vSphere?

Vmware 60

Vmware Network Load Balancer Linux 60

Scott Lowe

DECEMBER 17, 2015

If you’d like to play around with Cumulus Linux but don’t have a compatible hardware switch, Cumulus VX is the answer. Servers/Hardware. William Lam breaks down the real value of load balancing your PSC in this in-depth article. I would respond to that by saying OpenStack Neutron wasn’t built to manage a physical network.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

APRIL 30, 2013

According to Martin, the term SDN originally referred to a change in the network architecture to include a) decoupling the distribution model of the control plane from the data plane; and b) generalized rather than fixed function forwarding hardware. What about virtualized load balancers? What about NX-OS, JUNOS, or EOS?

Virtualization 134

Virtualization Network Vmware Load Balancer 134

Fountainhead

JUNE 29, 2009

True, both have made huge strides in the hardware world to allow for blade repurposing, I/O, address, and storage naming portability, etc. However, in the software domain, each still relies on multiple individual products to accomplish tasks such as SW provisioning, HA/availability, VM management, load balancing, etc.

Analysis 147

Analysis HP Data Center Virtualization 147

Data Center Knowledge

JULY 23, 2013

Cloud Computing » Storage. Whether it is redundant hardware or a private hot-site, keeping an environment up and running 99.99% (insert more 9’s here) of the time is a tough job. So, if one site should go down – users would transparently be balanced to the next nearest or most available data center. .

Cloud 250

Cloud Disaster Recovery Data Center Backup 250

Data Center Knowledge

JULY 23, 2013

Storage and bandwidth is growing accordingly.” They manage dedicated firewalls for us, but as far as load balancers we use the cloud. I wasn’t sure cloud load balancing would be right, for example, but they showed us the numbers. Planning for a Cloud-Ready Distributed Storage Infrastructure.

Cloud 189

Cloud Data Data Center Firewall 189

The Accidental Successful CIO

AUGUST 3, 2011

This low level software allowed multiple applications to run on the same physical hardware but believe that they had the box all to themselves. Kotsovinos points out that a VM is really a collection of interconnected physical subsystems : server, storage, and network. The arrival of virtualization software changed everything.

Virtualization 100

Virtualization Load Balancer Data Center Vmware 100

Scott Lowe

DECEMBER 6, 2012

First up is Brent Salisbury’s how to build an SDN lab without needing OpenFlow hardware. Not unsurprisingly, one of the key advantages of STT that’s highlighted is its improved performance due to TSO support in NIC hardware. Servers/Hardware. I needed to fill in some other knowledge gaps first.)

Vmware 109

Vmware Virtualization Storage Hardware 109

Scott Lowe

SEPTEMBER 12, 2013

Recep will cover the hardware side of ONP; Gershon will cover the software side of ONP (referred to as ONS). ONP fits into this picture by performing VTEP functions in hardware (at line rate). Some of these services naturally should run on the top-of-rack (ToR) switch, like load balancing or security services.

Intel 61

Intel Load Balancer Architecture Virtualization 61

Data Center Knowledge

JULY 17, 2013

He has more than 20 years of experience in assisting cloud, storage and data management technology companies as well as cloud service providers to address rapidly expanding Infrastructure-as-a-Service and big data sectors. Many companies have now transitioned to using clouds for access to IT resources such as servers and storage.

Data Center 203

Data Center Cloud Data Applications 203

Scott Lowe

SEPTEMBER 11, 2014

A traditional SRF architecture can be replicated with COTS hardware using multi-queue NICs and multi-core/multi-socket CPUs. Workloads are scheduled across these server/linecards using Valiant Load Balancing (VLB). Visit the site for more information on virtualization, servers, storage, and other enterprise technologies.

Load Balancer 61

Load Balancer Intel Network Hardware 61

Virtualized Greek

AUGUST 27, 2013

The ability to virtualize the network devices such as firewalls, IPS and load balancers also means that these once physical devices that have discrete interfaces can be controlled by software. The second major area is storage automation. The second major area is storage automation.

Vmware 58

Vmware Load Balancer Data Center Virtualization 58

Scott Lowe

FEBRUARY 10, 2015

Tom’s key point is that disaggregating software from hardware—which is kind of a given if you’re buying whitebox networking gear—gives you the (potential) flexibility to repurpose network gear based on the software running on it. Servers/Hardware. However, it’s at least possible with whitebox networking gear.

Open Source 60

Open Source Vmware Network IBM 60

Fountainhead

OCTOBER 6, 2009

A specific angle I want to address here is that of infrastructure automation ; that is, the dynamic manipulation of physical resources (virtualized or not) such as I/O, networking, load balancing, and storage connections - Sometimes referred to as "Infrastructure 2.0". a Fabric), and network switches, load balancers, etc.

Load Balancer 100

Load Balancer Virtualization Data Center Network 100

Fountainhead

DECEMBER 13, 2010

In essence, a server’s logical IO is consolidated down to a single (physical) converged network which carries data, storage and KVM traffic. Existing physical IO but with address hardware-based mapping/virtualization (e.g. can be recovered onto another domain (assuming shared/replicated storage). Qlogic , Emulex ).

Virtualization 157

Virtualization Data Center Network Storage 157

Fountainhead

SEPTEMBER 10, 2009

Essentially the punchline is this: Weve taken the most commonly-purchased hardware configuration and management tools used by mission-critical IT Ops, and integrated them into a single product with a single GUI that you can install and use in ~ 1 day. If you dont believe Dell hardware is ready for the Data Center, then think again.

Dell 138

Dell Data Center Virtualization Cloud 138

Fountainhead

MAY 6, 2010

Converged Infrastructure and Unified Computing are both terms referring to technology where the complete server profile, including I/O (NICs, HBAs, KVM), networking (VLANs, IP load balancing, etc.), and storage connectivity (LUN mapping, switch control) are all abstracted and defined/configured in software.

Data Center 100

Data Center Virtualization Storage Network 100

Fountainhead

DECEMBER 8, 2009

Think of it this way: Fabric Computing is the componentization and abstraction of infrastructure (such as CPU, Memory, Network and Storage). The next step is to define in software the converged network, its switching, and even network devices such as load balancers. Provisioning of the network, VLANs, IP load balancing, etc.

Data Center 113

Data Center Virtualization Load Balancer Network 113

Fountainhead

JUNE 7, 2010

Capital cost – if you count all of the separate hardware components they’re trying to manage. That last bullet, the thing about hardware components, is also something to drill down into. And I mean I/O components like NICs and HBAs, not to mention switches, load balancers and cables.

Virtualization 113

Virtualization Data Center Transportation Disaster Recovery 113

All Things Distributed

NOVEMBER 15, 2010

The early GPU systems were very vendor specific and mostly consisted of graphic operators implemented in hardware being able to operate on data streams in parallel. The different stages were then load balanced across the available units. Driving Storage Costs Down for AWS Customers. General Purpose GPU programming.

Architecture 136

Architecture Programming Web Services Applications 136