Scott Lowe

AUGUST 6, 2021

Here’s a quick look at using Envoy as a load balancer in Kubernetes. Servers/Hardware. Via Alex Mitelman’s Systems Design Weekly 015 , I was pointed to this AWS article on multi-site active-active architectures. Operating Systems/Applications. Networking.

Open Source 105

Open Source Load Balancer WAN Architecture 105

Data Center Knowledge

JULY 23, 2013

Fishbowl was using Latisys for colocation of its internal systems and intranet, while hosting customer-facing services with another managed hosting provider. Its customer systems were growing too fast for its previous provider. Storage and bandwidth is growing accordingly.” “Email is growing 40-50% every year. .

Cloud 189

Cloud Data Data Center Firewall 189

Scott Lowe

JANUARY 17, 2020

Eric Sloof mentions the NSX-T load balancing encyclopedia (found here ), which intends to be an authoritative resource to NSX-T load balancing configuration and management. Servers/Hardware. Now I really want to see hardware security key support in the desktop and mobile apps! Operating Systems/Applications.

Load Balancer 60

Load Balancer Vmware Windows Cloud 60

Scott Lowe

AUGUST 27, 2021

Servers/Hardware. Pablo Vidal Bouza discusses Segment’s move from SSH bastion hosts to AWS Systems Manager Session Manager. (I I was going to make a joke about AWS Systems Manager Session Manager and Corey Quinn, but I couldn’t come up with anything. Operating Systems/Applications. Plastic microchips ?

Linux 90

Linux Load Balancer Malware Virtualization 90

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? Operating Systems/Applications. Virtualization.

Linux 74

Linux Load Balancer IPv6 Licensing 74

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. Operating Systems/Applications. Nothing this time around, sorry! Check this out.

Vmware 60

Vmware Linux Storage Load Balancer 60

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. Things like what operating system an application used no longer mattered – you could mix and match to your heart’s content. The arrival of virtualization software changed everything.

Virtualization 100

Virtualization Load Balancer Data Center Vmware 100

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. Operating Systems/Applications. Nothing this time (sorry!). Ben Evans has a four-part series (so far) on vSAN.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 60

Scott Lowe

AUGUST 6, 2021

Here’s a quick look at using Envoy as a load balancer in Kubernetes. Servers/Hardware. Via Alex Mitelman’s Systems Design Weekly 015 , I was pointed to this AWS article on multi-site active-active architectures. Operating Systems/Applications. Networking.

Open Source 60

Open Source Load Balancer WAN Architecture 60

Scott Lowe

APRIL 6, 2017

Servers/Hardware. Operating Systems/Applications. 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. Intel NUC or SuperMicro E200-8D? Yes, please! (I

Vmware 60

Vmware Linux Storage Network 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

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. Operating Systems/Applications. by Qlogic called “Mt.

Vmware 108

Vmware Virtualization Storage Hardware 108

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. Daniel Sagi of Aqua Security explains the mechanics behind a Pod escape using file system mounts.

Load Balancer 60

Load Balancer Cloud Applications Vmware 60

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 60

Load Balancer Intel Network Hardware 60

Scott Lowe

AUGUST 27, 2021

Servers/Hardware. Pablo Vidal Bouza discusses Segment’s move from SSH bastion hosts to AWS Systems Manager Session Manager. (I I was going to make a joke about AWS Systems Manager Session Manager and Corey Quinn, but I couldn’t come up with anything. Operating Systems/Applications. Plastic microchips ?

Linux 60

Linux Load Balancer Malware Virtualization 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. Operating Systems/Applications. If you’re not familiar with VPCs and associated AWS constructs, you should read this article.

Load Balancer 60

Load Balancer Storage Network Linux 60

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

SEPTEMBER 22, 2017

Servers/Hardware. Operating Systems/Applications. 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).

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. Operating Systems/Applications. I haven’t tested it.).

Network 60

Network Load Balancer Storage Applications 60

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. Operating Systems/Applications. From an unknown author, we have this security rant on Flatpak.

Load Balancer 60

Load Balancer Operating Systems Intel Hardware 60

Scott Lowe

SEPTEMBER 12, 2013

.” The speakers are Recep Ozdag, a PME with Intel, and Gershon Schatzberg, a PLM with Wind River Systems. 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).

Intel 60

Intel Load Balancer Architecture Virtualization 60

All Things Distributed

MAY 8, 2012

Werner Vogels weblog on building scalable and robust distributed systems. of administrative tasks such as OS and database software patching, storage management, and implementing reliable backup and disaster recovery solutions. All Things Distributed. Expanding the Cloud for Windows Developers. By Werner Vogels on 08 May 2012 02:00 PM.

Development 115

Development Windows Disaster Recovery Licensing 115

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. Operating Systems/Applications. Is Cisco’s Insieme effort producing a storage product? storage enhancements.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

FEBRUARY 24, 2018

Viktor van den Berg writes on deploying NSX load balancers with vRA. Servers/Hardware. Operating Systems/Applications. 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.).

Vmware 60

Vmware Load Balancer Network Open Source 60

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 108

Intel Virtualization Data Center Network 108

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

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 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 Storage Network 157

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. Operating Systems/Applications. The security posture of Docker containers is, rightfully so, starting to see more focus.

Vmware 60

Vmware Network Load Balancer Linux 60

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

JUNE 29, 2009

The two big recent entrants/announcements were Ciscos Unified Computing System (made this past March) and then HPs BladeSystem Matrix (made in June). The UCS Manager software bundled with the system provides core functionality (see diagram, right). Still, these systems are - believe it or not - a major step forward in IT management.

Analysis 147

Analysis HP Data Center Virtualization 147

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. Operating Systems/Applications. William Lam breaks down the real value of load balancing your PSC in this in-depth article. Want to run Docker Swarm on Azure? Why, yes, thanks.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

FEBRUARY 10, 2015

This time around, the content is a bit heavier on cloud management and applications/operating systems, but still lots of good content all the way around (I hope, anyway). Servers/Hardware. Operating Systems/Applications. Networking. Matt Oswalt recently wrapped up his 3-part “DevOps for Networking” series.

Open Source 60

Open Source Vmware Network IBM 60

All Things Distributed

NOVEMBER 15, 2010

Werner Vogels weblog on building scalable and robust distributed systems. Now that our ability to generate higher and higher clock rates has stalled and CPU architectural improvements have shifted focus towards multiple cores, we see that it is becoming harder to efficiently use these computer systems. All Things Distributed.

Architecture 136

Architecture Programming Web Services Applications 136