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Inexpensive used rack servers – Digitisation progress for your company

"Leveraging competitive advantages through digital technology", "Effective use of artificial intelligence in companies", "AI and digitalisation", "More cybersecurity through AI" - you've probably read headlines like these before. At the beginning of the AI hype, we were still in awe of the new, intelligent system, but now the fear that the competition will outperform us with the use of AI prevails.

Many companies in Germany are calling for more digitalisation and the use of AI systems. But for many, the simple basics are already failing: because high-end computer systems, all-flash systems for accelerated AI and deep learning workloads or simply high-performance hardware in general, which should also arm you for the future, is simply too expensive.

Even though many companies and company owners are convinced that the use of new technologies plays a decisive role in competitiveness, many lack the financial resources. The point "cost savings" often sets the available IT budget very low. How it is nevertheless possible to address the issue of greater success through technology & The best way to dedicate yourself to digitisation is actually quite simple: rely on refurbished hardware from refurbishing specialists.

Advantages of high-performance refurbished server hardware

Why use second-hand servers and Storage systems to use them? There are many advantages to this: in addition to the shorter delivery time (after all, used appliances are available directly on the market and do not have to be produced first), the topic of Sustainability plays a major role. Every commercial enterprise should be aware of its position and set a good example when it comes to environmental protection - all the better to give functioning hardware a second life. However, the main aspect is probably the extreme cost savings. You get high-quality professional hardware from well-known manufacturers at a low price - thoroughly tested to rule out both optical and technical faults. Anyone who thinks that refurbished servers are outdated hardware is mistaken. The devices, which are on average between 3 and 6 years old, are powerful, scalable and state of the art. And finally, certain "basics" do not change every year (think of RAM types, the SAS/SATA interface or the PCI Express connection, for example).

In general, professional equipment from the refurbished sector offers a number of advantages for your company. If you rely on used rack servers, you can set up a secure IT landscape at a realisable price level and thus also create better availability for smooth business operations. The use of servers can even save costs, as management is simplified and business processes can be simplified or automated. You can find more important reasons for using server hardware in your company in our blog post:

"Advantages through technology - building stable and future-proof IT environments with professional server hardware".

Application areas of rack servers or rack server vs. tower server vs. blade

The benefits that the use of server systems can bring to your company are therefore obvious. However, the question now is - when do I use a Tower when to use a rack and when to use a Blade server? Or does it not matter which design I choose for my company? A little spoiler here: no - there are various criteria that you need to consider in order to choose the right server for your company. Remember that these are the "centrepiece" of your IT landscape, so well thought-out planning is a must.

Therefore, it is not only the type of chassis that is decisive, but also the server components, such as the processor, RAM and HDDs or SSDs. The required server configuration, i.e. the sizing of your server, must be individually tailored to the needs of the company and the requirements of the service - it is best to seek advice from an IT consulting company or IT system house. Even if server sizing cannot be generalised - we have summarised some "basic knowledge" regarding the configuration depending on the service in this blog post: "Server sizing - What configuration do I need for my server?".

In principle, every server is a kind of "service provider" for the clients, as it provides functions such as file services, databases or printing services. But not all servers are the same. The question: Which server do I need? It depends on a few criteria: firstly, the purpose of the device. Do you want to use it as a mail, file or database server, for example? Then it is important that you know that each "type" of server requires a different configuration. While file servers typically back up and transfer larger data packets and therefore require a certain amount of hard disk capacity, database servers, which tend to provide smaller data packets, benefit from a lot of main memory (RAM).

In one of our blog posts, we have compiled an overview of the different "types" of server (depending on the intended use), in which cases it is better to rely on internal hardware instead of hosting and whether it is worthwhile for SMEs to have their own server: Server purchasing consultant: Tips and information for your company.

The intended use alone can be the deciding factor as to whether you should opt for a tower or rack server - as can the location. Future-oriented thinking is also decisive here: companies that are aiming for enormous growth in the shortest possible time or are already expanding are unlikely to rely on a large number of towers in the data centre - rack servers would be used here simply to simplify administration and save space. The tower usually has a further disadvantage compared to the rack version because its scalability is limited. With the stackable, highly scalable and management-efficient rack models, on the other hand, you can - if desired - build up an entire server farm.

Blade servers, on the other hand, are very similar to racks. However, they are smaller and only work in a suitable chassis - but despite their compactness, they offer plenty of space for the components that are crucial for more computing power. This means that they are particularly suitable for high-performance workloads. The management for the small powerhouses has been extremely optimised - but as efficient as the machines are, they are also expensive to maintain. This is because the greater concentration means that blades generate more heat than rack systems. In other words, the cooling costs and the effort required to control humidity and heat development are significantly higher.

So if you don't need high-performance data clusters and aren't looking for a server for a branch office or for use in the office, a rack server is a good choice. Possible applications include virtualisation, cloud computing or simply for data processing in your own company. Server racks have the advantage that they can be upgraded simply and easily (in some cases or even without tools for some components). The replacement of Components is often child's play and therefore ensures fast maintenance and less data loss. Unlike tower servers, which are often only equipped with one power supply unit, rack servers are designed for absolute redundancy, reliability and therefore availability. The fact that the compact 19" chassis can be stowed away in rack cabinets means that extreme computing power can be achieved in a limited space.

Server configuration – exactly as required at serverando.de

All well and good - but what if my IT consultant or the IT system house I contacted recommends anything other than a standard server, but a machine that exactly meets my requirements, but is difficult to acquire or almost unaffordable from the manufacturer? Quite simply, then come to us. Because we offer you a large selection of rack servers - of course in professional quality and from well-known manufacturers such as HPE, DELL, IBM/Lenovo or Fujitsu. In our wide range you will find both basic machines, e.g. with 1 U or 2 U height, which can be used as web or domain controllers, as well as high-end devices for databases, virtualisation or changing workloads with powerful Intel Scalable processors, plenty of RAM and fast SSD hard drives.

With our online server configurator, you can put together your own customised server quickly and easily. Don't worry: you don't have to click through 1000 different components, because we've already done the work for you. For each device, we offer you a selection of RAM upgrades (e.g. with 16 GB, 32 GB, 64 GB or 128 GB modules), matching hard drives and SSDs - including HDD frames, of course - compatible processors, RAID controllers, HBAs, network cards and other accessories such as rack rails or power supply units. Each configuration is checked again by us for plausibility and the server is also checked for visual integrity and technical function before delivery.

In recent years, we have also brought a few selected partner companies "on board" for optimum service: This includes an IT consulting company that can advise you on the subject of your own server and server sizing, as well as a software dealer that specialises in the subject of used software.

Because you have probably already asked yourself why our servers and components (as well as the software we offer) are many times cheaper than new goods? They are professionally refurbished used goods. Thoroughly tested, as good as new - but considerably cheaper. These "refurbished" products offer several advantages over new goods: in addition to the price savings, you also benefit from the rapid availability of the devices. The fact that they have already been used reliably and are checked again before despatch means that production errors can be ruled out. And, of course, the issue of sustainability also plays a small but important role. After all, it would be a shame if technically up-to-date devices that work perfectly were no longer used at the end of the leasing period.

Buying used rack servers – Our short FAQ for you

What do I need to consider when buying a server for my company?

It's not just the size of the company itself that matters, i.e., how many requests/accesses the server receives, but above all, the intended use for the server. A file server storing many (large) files requires a different configuration than a domain controller that doesn't need to back up enormous amounts of data. Furthermore, you need to consider which device and server size are worthwhile in terms of performance, reliability, and power consumption (operating costs). The location can also play a role in determining the server's form factor – do I need a particularly quiet device for the office, or a high-performance server for rack mounting? The available IT budget is, of course, also a crucial factor: Those looking to save money should consider used equipment, as it offers a significant price advantage over new products. It is also always important to think about the future when making a purchase – opt for scalable devices and additionally protect yourself with, for example, a service contract.

What do I need to consider when buying a server for home use?

Here, too, it depends on what you want to use the device for. For example, is it meant to be a central location where vacation photos or private videos are stored and everyone in the family can access them? Then a NAS with a few terabytes of hard drive capacity is probably the best option. NAS servers can also be used for backup purposes. If you want devices on the network to be able to communicate with each other or if you want to manage your smart home devices centrally, a compact mini-server system might be the solution. Anyone who wants to host their own website or set up their own gaming server can also do so with, for example, an office or tower server. Rack servers are usually not used for various reasons – often simply because of the high noise level during operation.

Do I need a tower or a rack server?

Here again, the question is: what will the device be used for? How important are scalability, reliability, and redundancy? Where will the device be used? If you're looking for a device for a branch office, a single office, or a small branch of your company, a tower server is usually the better choice. Companies that are currently growing and likely to expand further should also opt for hardware that can be easily scaled to meet changing needs.

Should I choose a brand-name device for my new server?

Since servers are the central hub for (virtually) all other hardware components in your IT infrastructure, they play a crucial role. Therefore, you shouldn't cut corners here. Only use high-quality, professional-grade components. Manufacturers like HPE, Dell, IBM/Lenovo, Fujitsu, and Cisco offer powerful, reliable, secure, and, above all, durable server systems in their product portfolios. However, instead of investing in expensive new equipment, it's often worthwhile to look for a suitable device on the used market. These are technically up-to-date, functionally tested (if refurbished), and significantly cheaper than new equipment.

Why should I buy a used server?

It's important to understand that used is not the same as refurbished. If you opt for a refurbished server, you should only buy from experienced IT refurbishing companies. This is the only way to guarantee that the hardware has been tested for technical functionality and external integrity, and that – should a defect occur – you have a right to a replacement or repair/upgrade. Purchasing used servers from a specialist retailer can offer many advantages. The price advantage is unbeatable, as these devices are up to 70% cheaper than comparable new ones. Furthermore, the servers have already been reliably used, so a manufacturing defect can be ruled out. And: You can easily and quickly configure your ideal server to your exact specifications. Since the hardware is already on the market, there are no long waiting times for server production. The environmental aspect can also play a role, as the functioning and up-to-date devices are recycled.

What configuration does my rack server need?

Server sizing is determined by many factors. As mentioned, it depends on the intended purpose of the device (domain controller, file server, database server, gaming server, etc.). Depending on this, more RAM, more hard drive capacity, or faster processors may be advantageous. It also depends on how many users access the device, how frequently, and for how long. The more users, the more power your rack server needs. You might also want to achieve server consolidation through server virtualization. If the physical devices that are now to be virtualized already had more than 32 GB of RAM, then it's not sufficient for the virtualized hardware to also only have 32 GB of RAM.

What are the advantages of configuring my rack server online?

You determine which/how many processors, RAM modules, HDDs or SSDs, which RAID controller, and which network cards or power supplies are installed, allowing you to assemble a server configured precisely to your wishes, preferences, and requirements. This is incredibly easy and can be done directly online using our server configurator. Of course, all devices are tested for plausibility and functionality before shipping.

What accessories do I need for rack mounting?

To mount the servers in the rack, you will first need mounting rails (rail kits) and possibly cable management arms for better organization in the rack cabinet. Since the devices run around the clock, it is recommended to integrate a UPS (Uninterruptible Power Supply) into the rack. This ensures that the servers continue to run for a certain period of time even in the event of a power outage, preventing data loss. You will also need (KVM) switches, possibly a rack console, and PDUs (power distribution units) for power supply.

How do I achieve good performance with my rack server?

Several components play a crucial role in performance – these should be optimally coordinated. Powerful processors are a good start. When it comes to RAM, more is usually better – however, it also depends on the intended use of the device – because sometimes more simply means higher costs without any performance increase. The choice of hard drives should also be carefully considered. For example, faster SSDs can be used as system drives. And of course, an additional network card can also provide support and boost performance.

Should you choose an HPE ProLiant or a DELL PowerEdge?

That depends on your personal preference and, if applicable, the existing systems in your current IT infrastructure. Generally speaking, both series are powerful, scalable, and high-quality systems. Some people often opt for the manufacturer with whom they have had better support experiences. In our shop, you'll find both HPE rack servers and comparable models from DELL.

Can I use my rack server for storage?

In principle, you can "convert" your rack server into a storage server and use it purely as a central storage location. Often, you don't need the high performance of a processor/RAM in this case, but rather rely on high-capacity SSDs or HDDs. For very small businesses or home use, however, a NAS is recommended instead of a rack server – as these are significantly more compact and quieter. Large companies or businesses that require extremely large amounts of storage space tend to use SAN systems.

Why do I need a professional or high-end server?

High-end equipment isn't always necessary; it depends on the intended use of the system. However, powerful, durable, and above all, secure professional hardware is essential. These devices operate 24/7, must withstand heavy loads, and be able to handle a multitude of processes simultaneously. Professional hardware typically has a very different build quality than consumer-grade hardware. The materials used are (in some cases) of higher quality, and the devices have several features that ensure extreme security and stability.

Is every rack server designed for continuous operation?

Every reputable professional server is designed for 24/7 operation. Servers are generally not switched off at the end of the workday like PCs or laptops – availability is crucial, regardless of time or location. Therefore, the individual components of these devices are very well-made and constructed from high-quality materials.

Why are used rack servers cheaper than new ones?

Similar to used cars, the depreciation of hardware is highest in the first few years after purchase. A car with 10,000 km is cheaper than the same model with virtually no mileage – this also applies, metaphorically speaking, to server or storage equipment. However, this also means that used equipment is not necessarily inferior to new equipment. The price might be lower from a private seller, but with a reseller (or IT refurbisher), you often get better performance and more thorough product testing. Plus, there's a warranty, which provides a certain level of security.

Is it worthwhile to equip your server with the maximum possible amount of storage right away?

This can lead to better performance, but it can also be a waste of money and simply result in a worse IT budget. If the system doesn't suit my requirements or intended use—for example, if I choose a compact micro-server as a file server for a medium-sized office—a lot of RAM won't help if I run out of storage space for my data. Or, I might have the right system, upgraded the RAM, but installed a slow CPU. Generally, it's important to think ahead—the hardware should be able to grow with the business.

Do I need RAID for my server?

Absolutely, if at least two storage drives are installed. This protects against data loss in the event of a drive failure – and can also lead to increased performance. A well-designed RAID configuration ensures that your servers run more stably and are more reliable.

How do I find the right accessories for my rack server?

In our shop, you'll find suitable items (such as RAM, processors, cables, power supplies, hard drives/SSDs, or rack rails) either under the selection in the configurator or under "Accessories & Spare Parts." You can also use the search function (magnifying glass) to find suitable components, for example, by entering your server model (such as "DL380 Gen10").

Why should I take out a service contract for my rack server?

Because it protects you in case of a failure. It often takes hours to identify the problem and find a solution—valuable time lost in terms of data loss and restoring operations. With a service contract, you'll receive prompt assistance—depending on the response time—and you won't have to worry about obtaining replacements for defective components yourself. Protect yourself long-term. You can find our service contracts under the Servers -> Service tab.

Is it also possible to purchase a refurbished operating system for my rack server?

Yes, that's true – because what works for hardware is increasingly becoming the norm for software as well. The right to use the software doesn't diminish or expire – which is why we offer a wide selection of Microsoft server operating systems under the "Software" section.