Search

Tag: ram

View:
Volodymyr Perishko
  • Volodymyr Perishko
  • September 7, 2024

Re-investigating performance of SQL Server Availability Groups on Storage Spaces. Why You Should Always Enable Read-Only Routing

In this post, I am going to take a closer look at the impact of read-only routing on SQL Server Availability Groups performance. I measured SQL Server Availability Groups (AG) performance before (https://www.starwindsoftware.com/blog/hyper-v/can-sql-server-failover-cluster-instance-run-s2d-twice-fast-sql-server-availability-groups-storage-spaces-part-1-studying-ag-performance/). And, a guy from Reddit  recommended enabling read-only routing to achieve higher performance (find more about this policy here: https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/configure-read-only-routing-for-an-availability-group-sql-server?view=sql-server-2017). Thanks for your comment, man! I highly appreciate your efforts. This article will shed light on how read-only routing affects SQL Server AG performance.
Read more
Vladislav Karaiev
  • Vladislav Karaiev
  • August 15, 2024

Bypass TPM and Install Windows 11 on Unsupported Hardware

Got an ‘unsupported hardware’ error when installing Windows 11? No worries!
Read more
Vitalii Feshchenko
  • Vitalii Feshchenko
  • June 17, 2024

VMware brought PMEM support to vSphere. How fast can your vSphere 6.7 VM potentially run on PMEM?

Some time ago, there was a post about new cool features brought to VMware vSphere 6.7 with Update 1. I forgot to mention one thing that appeared in VMware vSphere even before the update – PMEM support for your VMs. Well, I think it won’t be enough to write something like “Wow, it is good to see PMEM support in vSphere… it is very fast”. This innovation needs own article shedding light on what PMEM is and how fast your VMs can actually run on it. Unfortunately, I have no NVDIMM devices in my lab yet… but I still can simulate one using some host RAM!
Read more
Volodymyr Perishko
  • Volodymyr Perishko
  • April 19, 2024

Where is it smarter to keep databases? Azure SQL vs. Microsoft SQL Server in a VM

In this article, I compare deployment of Microsoft Azure SQL and SQL Server in a VM. I review the pros and cons of both approaches towards SQL Server deployment and take a closer look at cases when you may actually need each.
Read more
Andrea Mauro
  • Andrea Mauro
  • February 21, 2019

Changing the hardware resources on a running VM

Each virtual machine (VM) is a collection of resources provided by the infrastructure layer, usually organized in a pool of resources and assigned dynamically (or in some case statically) to each VM. VMs “see” a subset of physical resources in a form of virtual hardware components defined usually by the certain minimum elements. Adding hardware components can be useful in some cases, or they can be necessary for performing some basic operations, like, for example, installing the guest OS where a video driver, a keyboard and a mouse device are needed to use the remote console. That is why you should be aware of which hardware resources can be hot-add and which hot-remove.
Read more
Alex Samoylenko
  • Alex Samoylenko
  • January 10, 2018

5 useful tips to work with VMware vCenter Server Appliance 6.5

Nowadays, many VMware vSphere administrators manage their virtual infrastructures with VMware vCenter Server Appliance 6.5 (vCSA). This solution currently is a full-fledged alternative to the VMware vCenter for Windows which becomes a thing of the past. For ones who use vCSA not that long, this post provides several procedures which simplify solutions’ daily use. Let’s have a look at how they may come in handy.
Read more
Askar Kopbayev
  • Askar Kopbayev
  • August 15, 2017

3 Generations of My Homelabs

Sooner or later every single IT guy comes to the idea of having some lab. There are a million reasons why you would need a lab: learning new technologies, improving skills, trying crazy ideas you would never dare to try in the production network, you name it. Even though it is a work-related activity for most home labbers this is just another hobby for many of us.  That’s why people spend so many hours of their personal time building the homelab, investing significant funds into new hardware, thoroughly planning its setup, looking for a help in online communities or sharing their experience to help others. There is a whole universe of home labbers and I am happy to be part of this community. In this post, I would like to share my experience with 3 generations of home labs I have had so far and the thoughts about next generation.
Read more
Vladan Seget
  • Vladan Seget
  • June 15, 2017

VMware vCenter Server Appliance Homelab tips

Many IT administrators or virtualization guys run their homelabs at home. It is a good way to learn new technologies, be able to break things in a lab to get stronger skills. It is sometimes a challenge, to squeeze as much RAM as possible from it. The main challenge is always a memory utilization. VMware VMs are getting memory hungry all the time and they are not “optimized” for Homelab use, but rather for production environments. Yes, it is the main purpose of those VMs after all.
Read more
Alex Khorolets
  • Alex Khorolets
  • April 21, 2017

Supermicro SuperServer E200-8D/E300-8D review

These days, more and more companies need high-quality, reliable and efficient server hardware.  Home labs used by enthusiasts and professionals in the IT sphere for software developing and testing, studying for an IT certification, and configuring virtual environments became popular as well. Small companies are also interested in cheap and compact servers, the production of which is based on a couple of virtual machines or networking applications. Supermicro company ranks one of the leading positions in server development for a long time. Supermicro products range from the Hi-End clusters to microservers. Recently the company released two compact servers: SuperServer E200-8D and its younger model – SuperServer E300-8D.
Read more