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How does a rack server work?

How does a rack server work? 18 July 2023

Rack servers are pre-prepared designs that are designed for quick rack mounting. They are kept in special compartments or mounting sockets, secured to each other with screws. All rack servers are divided into 4 types by size, namely 1U, 2U, 4U and the rarest - 8U.

Do not confuse rack servers and tower servers. While the first stand out low-profile case, the tower servers are fixed in an upright position in a separate cabinet. In this way, rack servers can be installed very close to each other, and this makes it easy to consolidate network resources, thereby minimizing the space required. In addition to a more compact installation, rack servers offer easy cabling around the network component.

The strengths of rack servers

The list of the main features of rack servers, as well as their application includes:

  • Simplicity: It takes a minimum amount of time to add or remove a rack server, as they can simply be moved around on rails. Do not forget that the size of the server has a significant impact on its weight, and too much weight has a negative impact on speed and cooling quality. Finally, it should be noted the possibility of horizontal stacking of servers on one or more racks. In simple words rack servers take up very little space.
  • Future expansion: Servers can always be expanded, upgraded or new ones added. In the case of the need for additional servers, this option will be the most convenient and efficient. Particular attention is paid to hot-swapping, which is the work with the devices without directly shutting them down.
  • Network resources are consolidated: Each rack server has its own network interface, allowing you to add a network switch to the cabinet without any difficulty. All servers can then be connected to it.

What is included in the structure of rack servers

If you have certain requirements for a rack server, it will take a long time to analyze the market. Every server has its own purpose, i.e. for complex tasks, servers with 4th generation DDR memory are most likely to be suitable. It greatly increases the bandwidth and reduces stress.


Dell
  • 1U (rackmount)
  • Xeon E3-1200v5/v6
  • up to 64 GB (4 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • Xeon E3-1200v5/v6
  • up to 64 GB (4 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • Xeon E Processor
  • up to 64 GB (4 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 384 GB (12 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 384 GB (12 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 512 GB (16 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 512 GB (16 x DDR4)
  • 10SFF (4x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 384 GB (12 x DDR4)
  • 8LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 512 GB (16 x DDR4)
  • 8LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 10SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 10SFF (4x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 24SFF Bay 1.8" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (24 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (24 x DDR4)
  • 10SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (24 x DDR4)
  • 10SFF (4x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (24 x DDR4)
  • 10SFF (8x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 16SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1536 GB (24 x DDR4)
  • 8LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 12LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 12LFF + 2SFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 16LFF + 2SFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 24SFF (4x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 26SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 26SFF (4x NVME) Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 8LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 16SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 12LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 12LFF + 2SFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 18LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 2U (rackmount)
  • Xeon Scalable
  • up to 6144 GB (48 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Dell
  • 4U (rackmount)
  • Xeon E7-8800v3/v4
  • up to 6144 GB (96 x DDR4)
  • 4SFF Bay 2.5" (Hot Swap)
  • 4 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1024 GB (16 x DDR4)
  • 48SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1024 GB (16 x DDR4)
  • 54SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 1024 GB (16 x DDR4)
  • 24LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • Xeon E Processor
  • up to 64 GB (4 x DDR4)
  • 4SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 8SFF + 2NVMe Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 10NVMe Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 4LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 1U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 10SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 16SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 18SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 16SFF + 2NVMe Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 8LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 6144 GB (24 x DDR4)
  • 12LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 16SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 12LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 3072 GB (24 x DDR4)
  • 12LFF + 2SFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon E5-2600v3/v4
  • up to 768 GB (24 x DDR4)
  • 15LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Epyc
  • up to 4000 GB (32 x DDR4)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • Xeon E5-4600v3/v4
  • up to 6144 GB (48 x DDR4)
  • 8SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • Xeon E5-4600v3/v4
  • up to 6144 GB (48 x DDR4)
  • 18SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (16 x DDR4)
  • 48SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
HPE
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 2048 GB (16 x DDR4)
  • 24LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Lenovo
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 12LFF Bay 3.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Supermicro
  • 1U (rackmount)
  • up to 2 Xeon Scalable
  • up to 768 GB (16 x DDR4)
  • 2SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)
Cisco
  • 2U (rackmount)
  • up to 2 Xeon Scalable
  • up to 3072 GB (24 x DDR4)
  • 24SFF Bay 2.5" (Hot Swap)
  • 2 x PSU (Hot Plug)

Specialists of our company are ready to help you purchase the server and select the necessary server configuration for any required task.