Tag Archives: take

For Sale – 8GB Sapphire Radeon RX 480

No problem, understandable :)

Since you’re new to trading, a common process is half before and half on receipt which I’d also prefer.

If you change your mind, give me a shout.

Prevent Exchange Server virtualization deployment woes

are other measures administrators should take to keep the email flowing.

In my work as a consultant, I find many customers get a lot of incorrect information about virtualizing Exchange. These organizations often deploy Exchange on virtual hardware in ways that Microsoft does not support or recommend, which results in major performance issues. This tip will explain the proper way to deploy Exchange Server on virtual hardware and why it’s better to avoid cutting-edge hypervisor features.

When is Exchange Server virtualization the right choice?

The decision to virtualize a new Exchange deployment would be easy if the only concerns were technical. This choice gets difficult when politics enter the equation.

Email is one of the more visible services provided by an IT department. Apart from accounting systems, companies rely on email services more than other information technology. Problems with email availability can affect budgets, jobs — even careers.  

Some organizations spend a sizable portion of the IT department budget on the storage systems that run under the virtual platform. It may be a political necessity to use those expensive resources for high-visibility services such as messaging even when it is less expensive and overall a better technical answer to deploy Exchange on dedicated hardware. While I believe that the best Exchange deployment is almost always done on physical hardware — in accordance with the Preferred Architecture guidelines published by the Exchange engineering team — a customer’s requirements might steer the deployment to virtualized infrastructure.

How do I size my virtual Exchange servers?

Microsoft recommends sizing virtual Exchange servers the same way as physical Exchange servers. My recommendations for this procedure are:

  • Use the Exchange Server Role Requirements Calculator as if the intent was to build physical servers.
  • Take the results, and create virtual servers that are as close as possible to the results from the calculator.
  • Turn off any advanced virtualization features in the hypervisor.

Why should I adjust the hypervisor settings?

Some hypervisor vendors say that the X or Y feature in their product will help the performance or stability of virtualized Exchange. But keep in mind these companies want to sell a product. Some of those add-on offerings are beneficial, some are not. I have seen some of these vaunted features cause terrible problems in Exchange. In my experience, most stable Exchange Server deployments do not require any fancy virtualization features.

What virtualization features does Microsoft support?

Microsoft’s support statement for virtualization of Exchange 2016 is lengthy, but the essence is to make the Exchange VMs as close to physical servers as possible.

Microsoft does not support features that move a VM from one host to another unless the failover event results in cold boot of the Exchange Server. The company does not support features that allow resource sharing among multiple VMs of virtualized Exchange.

Where are the difficulties with Exchange Server virtualization?

The biggest problem with deploying Exchange on virtual servers is it’s often impossible to follow the proper deployment procedures, specifically with the validation of storage IOPS of a new Exchange Server with Jetstress. This tool checks that the storage hardware delivers enough IOPS to Exchange for a smooth experience.

Generally, a virtual host will use shared storage for the VMs it hosts. Running Jetstress on a new Exchange VM on that storage setup will cause an outage for other servers and applications. Due to this shared arrangement, it is difficult to gauge whether the storage equipment for a virtualized Exchange Server will provide sufficient performance.  

While it’s an acceptable practice to run Exchange Server on virtual hardware, I find it often costs more money and performs worse than a physical deployment. That said, there are often circumstances outside of the control of an Exchange administrator that require the use of virtualization.

To avoid trouble, try not to veer too far from Microsoft’s guidelines. The farther you stray from the company’s recommendations, the more likely you are to have problems.

The future of networking technology is playing out right now

In the 2011 novel Ready Player One, author Ernest Cline offers his take on the future of networking technology: a dystopian United States in 2044, where everyone is plugged into a virtual world dubbed Oasis.

The protagonist, Wade Watts, is a network-savvy teen who discusses data center stacks, servers, bandwidth and security with the air of a wizened IT pro as he stays a step ahead of forces who are out to stop him (spoiler alert). The book also offers some hardcore ’80s pop culture nostalgia, for anyone into things like John Hughes movies and new wave music.

In this story, the only way to escape the dreary real world is to have a thorough understanding of the networked, virtual world. Today’s infrastructure is not to the point of plugging people in — at least not yet. But the future of networking technology is already underway, and, like Watts, IT managers must understand how all these evolving concepts will work together.

Hyper-converged infrastructure (HCI), for one, is an intriguing peek into the future of networking technology. While still a small segment of the overall market, HCI brings together compute, storage, networking and virtualization resources in a single integrated platform. Storage management has fueled much of the rise in HCI, but today, IT managers are examining how it fits in with their overall cloud strategies.

Software-defined WAN (SD-WAN), meantime, continues to gain traction as enterprises examine new tools to connect their remote offices. But as WAN traffic grows, so do threats, and IT managers must determine the role SD-WAN security tools will play in helping them protect their WANs. New features like microsegmentation are promising, but more work needs to be done, analysts say.

Finally, enterprises might soon have the option of telling the network to fix itself through the use of intent-based networking (IBN). Using automation and policies, IBN could redefine how applications and services are delivered across networks, even as it ushers in evolutionary technologies.

How all of these developments combine to create the future of networking technology remains to be seen. But it’s certainly fun to read about.

In the meantime, network managers continue to find the best ways to manage their expanding networks and ensure enterprise users have the bandwidth and tools they need to get their jobs done. Read one IT pro’s story on how his company upgraded communications and bandwidth so it had the best network uptime possible.

Building a modern campus

Microsoft is embarking on a major redevelopment at its headquarters in Redmond, Washington. The project is expected to take five to seven years and will include the removal of 12 existing buildings and the construction of 18 new buildings along with new running and walking trails, open spaces and sports facilities. An artist’s rendering shows how the campus will look when the project is completed. Credit: Microsoft

For Sale – 2 Geforce GTX 980 Graphic cards with bridge

I take full responsibility for this, my son has 2 EVGA Geforce GTX 980 with sli bridge, light use over the past 18 months, he has just upgraded.

Looking for £500 for the whole lot posted mainland UK

Price and currency: 500
Delivery: Delivery cost is included within my country
Payment method: BT PPG
Location: East Sussex
Advertised elsewhere?: Not advertised elsewhere
Prefer goods collected?: I have no preference

______________________________________________________
This message is automatically inserted in all classifieds forum threads.
By replying to this thread you agree to abide by the trading rules detailed here.
Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment:

  • Landline telephone number. Make a call to check out the area code and number are correct, too
  • Name and address including postcode
  • Valid e-mail address

DO NOT proceed with a deal until you are completely satisfied with all details being correct. It’s in your best interest to check out these details yourself.

For Sale – 2 Geforce GTX 980 Graphic cards with bridge

I take full responsibility for this, my son has 2 EVGA Geforce GTX 980 with sli bridge, light use over the past 18 months, he has just upgraded.

Looking for £500 for the whole lot posted mainland UK

Price and currency: 500
Delivery: Delivery cost is included within my country
Payment method: BT PPG
Location: East Sussex
Advertised elsewhere?: Not advertised elsewhere
Prefer goods collected?: I have no preference

______________________________________________________
This message is automatically inserted in all classifieds forum threads.
By replying to this thread you agree to abide by the trading rules detailed here.
Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment:

  • Landline telephone number. Make a call to check out the area code and number are correct, too
  • Name and address including postcode
  • Valid e-mail address

DO NOT proceed with a deal until you are completely satisfied with all details being correct. It’s in your best interest to check out these details yourself.

For Sale – 2 Geforce GTX 980 Graphic cards with bridge

I take full responsibility for this, my son has 2 EVGA Geforce GTX 980 with sli bridge, light use over the past 18 months, he has just upgraded.

Looking for £500 for the whole lot posted mainland UK

Price and currency: 500
Delivery: Delivery cost is included within my country
Payment method: BT PPG
Location: East Sussex
Advertised elsewhere?: Not advertised elsewhere
Prefer goods collected?: I have no preference

______________________________________________________
This message is automatically inserted in all classifieds forum threads.
By replying to this thread you agree to abide by the trading rules detailed here.
Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment:

  • Landline telephone number. Make a call to check out the area code and number are correct, too
  • Name and address including postcode
  • Valid e-mail address

DO NOT proceed with a deal until you are completely satisfied with all details being correct. It’s in your best interest to check out these details yourself.

For Sale – 2 Geforce GTX 980 Graphic cards with bridge

I take full responsibility for this, my son has 2 EVGA Geforce GTX 980 with sli bridge, light use over the past 18 months, he has just upgraded.

Looking for £500 for the whole lot posted mainland UK

Price and currency: 500
Delivery: Delivery cost is included within my country
Payment method: BT PPG
Location: East Sussex
Advertised elsewhere?: Not advertised elsewhere
Prefer goods collected?: I have no preference

______________________________________________________
This message is automatically inserted in all classifieds forum threads.
By replying to this thread you agree to abide by the trading rules detailed here.
Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment:

  • Landline telephone number. Make a call to check out the area code and number are correct, too
  • Name and address including postcode
  • Valid e-mail address

DO NOT proceed with a deal until you are completely satisfied with all details being correct. It’s in your best interest to check out these details yourself.

For Sale – 2 Geforce GTX 980 Graphic cards with bridge

I take full responsibility for this, my son has 2 EVGA Geforce GTX 980 with sli bridge, light use over the past 18 months, he has just upgraded.

Looking for £500 for the whole lot posted mainland UK

Price and currency: 500
Delivery: Delivery cost is included within my country
Payment method: BT PPG
Location: East Sussex
Advertised elsewhere?: Not advertised elsewhere
Prefer goods collected?: I have no preference

______________________________________________________
This message is automatically inserted in all classifieds forum threads.
By replying to this thread you agree to abide by the trading rules detailed here.
Please be advised, all buyers and sellers should satisfy themselves that the other party is genuine by providing the following via private conversation to each other after negotiations are complete and prior to dispatching goods and making payment:

  • Landline telephone number. Make a call to check out the area code and number are correct, too
  • Name and address including postcode
  • Valid e-mail address

DO NOT proceed with a deal until you are completely satisfied with all details being correct. It’s in your best interest to check out these details yourself.