Service-Hotline: +49 (0) 9402- 93 8505 0
Service-Hotline: +49 (0) 9402- 93 8505 0
Service-Hotline: +49 (0) 9402- 93 8505 0

Server components at a glance - What's inside a server?

In today's blog post, we take a closer look at the "inner workings" of a server. What are the most important components, what are they there for and how do they interact? And are there actually differences between server parts and PC parts? All this in our new blog post.

The most important organs in the server - for optimum performance

Generally speaking, the server itself is only as strong as its components. Similar to the most important organs in the human body, all parts must work together optimally. The heart of the server is probably the processor, RAM and hard drives are short and long-term memory and the mainboard acts as the central nervous system. It is therefore by no means true that the performance of the server only depends on the processor - an unsuitable architecture, too little RAM, incorrect storage sizing or a lack of redundancy can also contribute to bottlenecks and failures. So let's take a closer look at the various server components:

The processor

The market leader in the server processor sector has been Intel for some time. Even though Intel and AMD are always trying to outdo each other, the Intel XEON series has often prevailed over AMD's EPYC processors in the professional sector. But is there a one-size-fits-all answer to the question of which processor to use?

Unfortunately not, but there are some parameters that can help you choose the right CPU. For example, the clock rate indicates how fast a processor moves, and the number of cores shows how much computing power the respective CPU has. Whether you should use a single, dual or multi-processor system again depends on the type of application. For example, single-processor systems are suitable for particularly small workgroups as file, mail or database servers. However, it must be borne in mind that there is only limited scope for upgrading and that these systems are only worthwhile for small companies that are not growing or as entry-level servers. The dual-processor models are probably the most common systems and are suitable as file or exchange servers, for database applications or as a virtualisation platform. Multi-processor systems are used in particular where very large data packages need to be backed up/sent or for extremely large databases.

We are currently in the 3rd generation of Intel Scalable processors - when it comes to new products. However, the models are probably not yet affordable for everyone - and for many, especially small and medium-sized companies, they are still too oversized. This is because the 1st and 2nd generation of scalable Intel XEON processors still cover many of the needs and requirements of SMEs. Workload optimisation, improved security functions and better performance are just as much a part of this as affordability. The Intel XEON E series processors also continue to find their place in the server and workstation sector. If you want to improve the performance of your rack server by upgrading or replacing the processors, you can also purchase individual server processors and matching heatsinks in our online shop.

The memory

As already mentioned, we are talking here about the server's "short-term memory". Even if the motto "a lot helps a lot" often applies when it comes to working memory (also known as main memory or server RAM), it also depends on the purpose for which you want to use the server. While database servers or servers that are to be used as a virtualisation basis benefit from a lot of RAM, a file server for extremely small workgroups would be rather "overloaded" - and the valuable IT budget would have been spent in the wrong place. DDR4 memory modules now dominate - also - the second-hand market. However, companies that still have older server models such as the DL380 Gen7, DL380 Gen8 or comparable DELL alternatives such as the PowerEdge R720 or R710 in operation can also find a wide range of DDR3 server memory modules in our shop, as spare parts or for RAM upgrades. As a RAM upgrade in a server is sometimes a little more complex than in a PC, we have put together a number of useful tips and tricks in our blog post: "RAM upgrade in a server" to make the upgrade or purchase decision a little easier for you.

The memory

As already mentioned, we are talking here about the server's "short-term memory". Even if the motto "a lot helps a lot" often applies when it comes to working memory (also known as main memory or server RAM), it also depends on the purpose for which you want to use the server. While database servers or servers that are to be used as a virtualisation basis benefit from a lot of RAM, a file server for extremely small workgroups would be rather "overloaded" - and the valuable IT budget would have been spent in the wrong place. DDR4 memory modules now dominate - also - the second-hand market. However, companies that still have older server models such as the DL380 Gen7, DL380 Gen8 or comparable DELL alternatives such as the PowerEdge R720 or R710 in operation can also find a wide range of DDR3 server memory modules in our shop, as spare parts or for RAM upgrades. As a RAM upgrade in a server is sometimes a little more complex than in a PC, we have put together a number of useful tips and tricks in our blog post: "RAM upgrade in a server" to make the upgrade or purchase decision a little easier for you.

The hard discs

In addition to the RAM, the "long-term storage", i.e. the HDDs or SSDs in a server, is also decisive for its performance. Rack servers have the great advantage that a large number of hard drive bays are available in a small space - 2U storage servers with 24 or 26 hard drive bays are not uncommon. Depending on the type, rack servers can be equipped with 2.5" or 3.5" bays, meaning that it is important to select the correct hard drive size: either SFF (Small Form Factor) or LFF (Large Form Factor) drives. In addition to the right HDD size, it is also important to ensure sufficient capacity and the right type of hard drive: This means either the inexpensive but "slower" HDD or fast - but comparatively still more expensive - SSDs. The use of the latter makes particular sense where availability and speed are important. In other words, in the area of data analysis, for system disks (faster booting) or when it generally comes to the "hot" data in the company, which should be available without long waiting times. As a higher capacity can still be achieved with HDDs, SAS HDDs or SATA HDDs are usually used when it comes to data backup, archiving and backup copies. Regardless of which type you choose, it is also important here: When choosing hard drives or SSDs for your rack server, only use high-performance professional hardware.

The RAID controller

However, selecting the right HDDs or SSDs for your rack server is not enough: a sensible RAID set, i.e. the combination of certain disks to form a RAID array to protect against data loss (or to improve performance), is also worth its weight in gold. Whether you opt for a pure software RAID or a "traditional" hardware RAID is up to you - both methods have their advantages and disadvantages. If the performance and flexibility of the rack server is the decisive factor, you would probably tend towards hardware RAID, i.e. a RAID controller, as this places less strain on the processor.

Serverkomponenten-Raid-Controller
Serverkomponenten-Raid-Controller

The RAID controller

However, selecting the right HDDs or SSDs for your rack server is not enough: a sensible RAID set, i.e. the combination of certain disks to form a RAID array to protect against data loss (or to improve performance), is also worth its weight in gold. Whether you opt for a pure software RAID or a "traditional" hardware RAID is up to you - both methods have their advantages and disadvantages. If the performance and flexibility of the rack server is the decisive factor, you would probably tend towards hardware RAID, i.e. a RAID controller, as this places less strain on the processor.

Serverkomponenten-Weitere

Other components

So we now know that in order to increase the performance of our system - or at least to achieve optimum performance and availability - we need to size our rack servers in line with requirements. However, other components also play a major role in the server sector - especially when it comes to redundancy and reliability. We are clearly talking about the power supply units. If a power supply unit in the rack server fails, a second one is available to bridge the gap - and as many server PSUs are hot-swappable, the defective server power supply unit can be replaced during operation. Servers can also accommodate additional network cards for more connectivity and better throughput (transmission speed).

Can server components be compared with PC components?

A crucial question - but anyone who has read the individual parts carefully will have noticed that server components are designed for a completely different performance spectrum to a "normal" PC. It's like comparing a lorry with a car - as the loads are much greater, the individual parts are also designed differently - even though both are vehicles (or computers). This is why, for example, the RAM or CPUs of a server do not fit into a PC.

We also have a large selection of high-performance server components on offer for you in our server shop.

New
Cisco HDD Tray / Caddy 2.5'' SFF, für UCS C220, C240, C480 M5, cover
Cisco HDD Tray / Caddy 2.5'' SFF, for UCS C220, C240, C480 M5
74-113290-01 
50
€19.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

New
HP Smart Array P441/4GB 12GB 2P SAS Controller w/o Battery, cover
HP Smart Array P441/4GB 12GB 2P SAS Controller w/o battery
726825-B21 
1
€199.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

New
Cisco UCS HDD 1.2TB 12G SAS 10K 2.5" in Carrier 74-113290-01 (M5), cover
Cisco UCS HDD 1.2TB 12G SAS 10K 2.5" SFF Hard Drive incl. Carrier 74-113290-01 (M5)
UCS-HD12TB10K12N 
50
€99.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

New
HPE Aruba Cable 10G SFP+ to SFP+ 7m, cover
HPE Aruba Cable 10G SFP+ to SFP+ 7m
J9285D 
2
€109.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

New
SEAGATE HDD 2TB 6G SATA 3.5" LFF 7.2k Constellation ES, cover
SEAGATE HDD 2TB 6G SATA 7.2k 3.5" LFF Constellation ES Hard Drive
ST2000NM0011 
22
€69.95
incl. VAT plus shipping

Estimated delivery time: 5 workdays

Tip
New
HPE HDD 2TB 6G SAS 7.2k 3.5" DP MDL for P2000, cover
HPE HDD 2TB 6G SAS 7.2k 3.5" LFF DP MDL Hard Drive for P2000
AW555A 
24
€44.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

New
SR3AR-INTEL-CPU-Gold-6134-3.20GHz-8-Core-130W-cover
INTEL Xeon CPU Gold 6148 2.40GHz, 20-Core, 27.5MB, 150W
SR3B6 
3
€159.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HP RAIL KIT BLc3000 & BLc7000 Enclosure
HPE RAIL KIT BLc3000 & BLc7000 Enclosure | New open box
410893-001 
2
€59.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE RAM 16GB 2RX8 PC4-2933Y-R (or 3200AA) Smart Memory Kit, P06188-001
SK HYNIX RAM 16GB 2Rx8 PC4-2933Y-R Arbeitsspeicher
HMA82GR7JJR8N-WM 
38
€47.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE 3PAR HDD Festplatte 600GB 6G SAS 10k 2.5" SFF
HPE 3PAR HDD 600GB 6G SAS 10k 2.5" SFF Hard Drive
C8R72A 
46
€27.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

Dell SAS/SATA/NVMe-Backplane 10xSFF, with Expander Card, for R440,R640
Dell SAS/SATA/NVMe-Backplane 10xSFF, with Expander Card, for R440, R640
091P78 
1
€239.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE Cable FlexNetwork X240 10G SFP+ TO SFP+ DAC 1.2M
HPE Cable FlexNetwork X240 10G SFP+ TO SFP+ DAC 1.2M
JD096C 
4
€24.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

Dell HDD Festplatte 1TB 6G SATA 7.2k 2.5", in 0NTPP3
Dell HDD 1TB 6G SATA 7.2k 2.5" SFF Hard Drive incl. Caddy 0NTPP3
8DN1Y 
16
€39.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

DELL HDD 1.2TB 12G SAS 10k 2.5" in tray 0DXD9H Festplatte
DELL HDD 1.2TB 12G SAS 10k 2.5" SFF Hard Drive incl. Tray 0DXD9H
0G2G54 
4
€94.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

DELL HDD 1.2TB 12G SAS 10k 2.5" Festplatte in tray 08FKXC
DELL HDD 1.2TB 12G SAS 10k 2.5" SFF Hard Drive incl. Tray 08FKXC
001M0D 
8
€84.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

FUJITSU HDD 450GB 12G SAS 15k 2.5" Festplatte
FUJITSU HDD 450GB 12G SAS 15k 2.5" SFF Hard Drive
A3C40197796 
36
€99.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE SSD 400GB 12G SAS 2.5" MU SC Festplatte
HPE SSD 400GB 12G SAS 2.5" MU SC Festplatte
872374-B21 
2
€169.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE SSD 240GB 6G SATA 2.5" RI SC Festplatte
HPE SSD 240GB 6G SATA 2.5" RI SC Festplatte
875503-B21 
6
€59.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE RAIL KIT X410 Universal, for Procurve/Aruba Switches u.a.
HPE RAIL KIT X410 Universal, for Procurve/Aruba Switches u.a.
J9583A 
3
€119.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

INTEL SSD 800GB 6G SATA 2.5" SFF S3710 Series Festplatte
INTEL SSD 800GB 6G SATA 2.5" SFF S3710 Series Hard Drive
SSDSC2BA800G4 
42
€99.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE SSD 1.6TB 6G SATA 2.5" RI DS SC Festplatte
HPE SSD 1.6TB 6G SATA 2.5" SFF RI DS SC Festplatte
869386-B21 
3
€199.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE SSD 800GB 6G SATA 2.5" SFF WI DS SC Festplatte
HPE SSD 800GB 6G SATA 2.5" SFF WI DS SC Festplatte
872359-B21 
4
€139.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

HPE SSD 1.6TB 12G SAS 2.5" SC Mixed Use DS Festplatte
HPE SSD 1.6TB 12G SAS 2.5" SC Mixed Use DS Festplatte
873365-B21 
5
€334.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

INTEL SSD 800GB 6G SATA 2.5", DC-S3510-Series Festplatte
INTEL SSD 800GB 6G SATA 2.5", DC-S3510-Series Festplatte
SSDSC2BB800G6 
3
€94.95
incl. VAT plus shipping

Available, delivery time 1-3 days **

Our broad and deep product portfolio includes parts for a variety of different server models and generations. You will always find a list of compatible devices in the item description - if you are not sure whether RAM, HDD or NIC is suitable for your server, you are welcome to contact us at any time: via e-mail at info@serverando.de, via our contact form or by telephone on +49 (0) 9402- 93 8505 0.

Auf welche Punkte Sie beim Serverkauf achten sollten, sowie weitere Informationen und Vorteile zu Servern haben wir Ihnen in einigen unserer vorherigen Blogbeiträge zusammengefasst: 

Date

12 August 2024

Author

Regina Seisenberger

Categories

Technik und Tests

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