Oracle VM Server

If you’re using Oracle applications in an x86 environment, you might want to think about deploying Oracle VM Server for your virtualization duties. There is tight integration and certifications requirements around the operation of Oracle products so it is easy to see why Oracle VM Server can handle Oracle workloads a lot faster than VMware. As a result, Oracle users will probably stick with Oracle VM Server for virtualization.

There is one issue however. In the broad, users are not a big fan of Oracle’s virtualization solutions – Oracle VM Server gets low relative satisfaction ratings compared to its peers. So, if you only have limited need for the use of Oracle software you should probably consider one of the alternative virtualization providers in the market.

Plesk

Plesk is one of the most popular paid-for hosting platforms both in the United Stated and in Europe, where it is the strongest in the market. There are different editions of Plesk and Plesk supports both Windows and numerous Linux editions including Debian, CentOS, RedHat, Ubuntu and Cloud Linux.

Both website hosts and agencies that manage multiple websites can enjoy the simple, automatic workflows offered by Plesk, supported by an ecosystem of plugins – currently there are more than 100 third party extensions available for Plesk.

Anyone using the latest version of Plesk can also enjoy integration with both Docker and GitHub. Let’s Encrypt is also fully supported so you can automatically obtain and update SSL certificates.

Plesk fully supports a range of environments form Node.js to Python and PHP – even Ruby on Rails. People who like the WordPress CMS will like the powerful WordPress Toolkit which is included with Plesk. The toolkit makes it really easy to clone and stage sites and helps webmaster maintain high standards of security – while offering features to manages large quantities of WordPress instances simultaneously.

Finally, the extensive range of plug-ins available for Plesk can massively expand the capability of Plesk. In other words, whatever you need to manage your Linux or Windows hosting platforms you will find it in the Plesk universe.

PowerVM

Both IBM and Oracle are popular vendors for enterprise applications and just like with Oracle IBM’s virtualization solution is a good fit for IBM applications. So, if you use technology such as IBM Linux or AIX, or run applications on IBM clients, you might want to think about using IBM PowerVM as your virtualization solution.

There are alternatives however, particularly if you feel like IBM’s options are over-engineered – ranging from VMware through to Citrix. Typically, you’ll find that PowerVM is in use by very large organizations that have very big IT budgets. However, if you’re a smaller or medium sized business you should probably consider getting outside help to get started with PowerVM because IBM’s solution is renowned for its relative complexity which requires real expertise.

Proxmox VE

For Linux environments sysadmins could consider Proxmox VE as a good alternative to Red Hat, in large part because it is relatively cheap compared to Red Hat solutions. At the moment it looks like Proxmox is quite popular in some parts of Europe, particularly in Germany. It’s a good solution where smaller businesses have staff who understand open source software well.

Proxmox has one advantage in that it is a three in one product – it does virtualization, offers containers and can also run a software designed storage solution. So companies who want to focus on containers and software defined storage may want to investigate Proxmox. In that sense Proxmox is a close competitor to Virtuozzo.

RAID

RAID stands for Redundant Array of Independent Disks, and it’s great for backup purposes. The word ‘redundant’ comes from the fact that the same information is written to more than one hard disk, so if an active disk fails then one of the redundant ones that’s been sitting around doing nothing will come to the rescue. If your website data is held in lots of different places, then it means you’ve always got a backup if one disk fails. Note that not all RAID types offer this kind of protection, so it’s always best to check.

Red Hat Virtualization

VMware is very popular for server virtualization, but in Linux environments Red Hat Virtualization provides strong competition – in part because Red Hat is much cheaper but also because some people find that Red Hat is easier to manage compared to VMware. However, Red Hat is behind VMWare when it comes to users ratings – but only slightly.

Small and medium sized businesses often use Red Hat but it tends to be small businesses who have IT teams that already know their way around open source software and Linux server environments. Red Hat works particularly well where a lot of servers are deployed in a high density configuration. That said, if you prefer Linux over Windows, you should seriously consider using Red Hat for your virtualization needs.

Server Virtualization Software

Server virtualization has been around for a while – it become prominent in the early 2000s and was arguably pioneered by VMware. Companies quickly started using virtualization broadly because it rapidly became apparent how virtualization can help companies to consolidated different servers on a single virtual machine. In doing so companies made sure that all their physical servers were fully utilized – instead of idling expensively without doing very much.

VMWare is still the leader in server virtualization but other companies ranging from IBM and Microsoft through to Red Hat and Citrix are also working on server virtualization, often offering new advanced features such as containerization, software-defined computing and of course hyper convergence. These new technologies are cutting edge but the bread and butter technology of virtualization remains incredibly common with estimates suggesting that virtual machine saturation is around 90%.

Even though containers and serverless infrastructure exist it is hard to see why companies would move existing, mission-critical server workloads across to these types of technologies – and away from bog-standard virtual machines as we know it. Particularly where the enterprise computing environment is heterogenous it makes little sense to move from virtual machines to containers because containers demand that the same operating system is used throughout – you cannot mix Linux containers with Windows containers for example.

Nonetheless where agile and DevOps developers create brand new applications there may very well be a choice between using virtual machines and indeed containers – or even a serverless environment. So, in the long run, new ways of developing applications will entail a challenge to classic server virtualization.

SolusIO

SolusIO offers virtual infrastructure management and facilitates virtual private servers and Cloud management for ISPs and enterprises. SolusIO boasts a simple application programming interface, fast virtual machines, and a user-friendly self-service control panel that allows customers to get the most out of in-house virtualization and cloud hosting.

WebPros bring their more than two decades of experience to bear with SolusIO, and in that time they’ve hastened the migration to digital of more than a hundred million businesses around the world by facilitating 70 million websites for them on 900,000 servers using over 3000 cloud service provider partners.

SolusIO was built from the ground up with the aim of giving businesses and service providers access to cutting-edge IaaS, PaaS solutions right now, and then cheaper hybrid- and multi-cloud environments in the future. The API gives mobile and app developers ready access to user-friendly interfaces for networking, storage, compute power, and containers.

SolusIO empowers the user by giving them greater control of their cloud infrastructure and data. It adheres to regulatory requirements and lets service providers offer a high-end selection of customizable applications to businesses and end-users in an environment that they host themselves, one that scales effortlessly in line with their ever-changing needs.

SolusVM

SolusVM ( Solus Virtual Manager ) is robust GUI-based VPS management solution from Plesk. It supports fully Xen Paravirtualization, OpenVZ, Xen HVM and Linux KVM.

SolusVM makes it possible to sell various types of hosting infrastructure-as-a-service products – CDN, DNS, hybrid and private cloud with integrated storage, VPS hosting, dedicated servers and more. There are numerous integrations with well-known billing systems like WHMCS, Hostbill and Blesta.

Uptime

Uptime is how long a system has been running without an outage. It can be expressed as a number of days, or as a percentage and it’s often used to show how reliable a Web server is.

Absolute uptime tells you how long a system has been up since it was booted. So, if it was switched on at 12:30 PM and is still running at the same time the next day, the uptime is 24 hours. This number is reset every time there’s a reboot.

On a Unix-based system (including macOS), you can type the uptime command in the terminal to find out how long the system has been running.

If you want to work out the uptime percentage, all you need to do is divide the total time that the system has been going for, by how long it’s been active. So, if a system has been running for a year, but had 10 hours downtime during that year, your calculation would look like this:

365 days x 24 hours = 8,760 active hours
8,760 active hours – 10 hours unavailable = 8,750 available hours
8,750 available hours ÷ 8,760 active hours = 99.8858% uptime

99.9% is not uncommon for a web server. It might sound like an impossibly high percentage, but many businesses can’t afford even a few hours of downtime. That’s why high-traffic enterprise servers will often aim to hit 99.999% uptime. They manage to attain this high number by using multiple servers for load balancing and redundancy.