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Rack Server

Rack Server

A rack mount server is a great way to maximize your shelf space by packing a lot of servers into a small space. Rackmount servers are typically easier for administrators to manage due to proximity, modularity and better cable management. Lockable rack cabinet's doors and steel server front panels provides additional level of physical security. Additionally, rack unit designed servers are better able to keep the server components cool than traditional tower formfactor. Industry standard 19-inch racks will allow you easily expand your business up without taking up more valuable floor space.

There is a lot of thought that needs to go into which size rack server is best best for your project. Both current requirements and future expansion plans need to be taken into account to ensure your server remains capable for the future.

Both large and small projects can be built on the 1U server platform. "U" stands for unit, “unit”, and this means thickness: server rack 1U = 1.75 inches or 44 mm wide. A reasonable amount of storage can fit within a 1U, processing power has no limits, and some models even allow up to two PCI-Express cards. Modern computer hardware uses much less power than it ever has in the past, which means less heat generation. Some 1U servers to still produce some acoustic noise, but is no where near the level of needing earmuffs like the old days. The only reason to go up in size is for additional expansion options.

2U models allow for multiple "low-profile" PCI-Express cards while keeping a compact form factor and also providing some additional storage space. If the plan is to use multiple full height cards, then 3U or 4U servers should be the focus. The 4U models are very popular and offer the flexible options. The 3U models do have limitations on expansion card compatibility and are really only for situations where rack space needs to be absolutely optimized (14x3U servers or 10x4U servers can fit in a 42u rack).

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Characteristics

Number of models

Form factor

Chipset

Processor family

Memory

Total storage capacity

Number of Hard Drives

RAID support

Number of PSU

Power of PSU

OEM Software

Warranty

7
20
7
7
11
24
15
  • 1U
  • 2U
  • 4U
  • 1U
  • 2U
  • 4U
  • 1U
  • 2U
  • 4U
  • 1U
  • 2U
  • 4U
  • 1U
  • 2U
  • 4U
  • 1U
  • 2U
  • 1U
  • 2U
  • 4U
  • Intel
  • Intel
  • AMD
  • Intel
  • Intel
  • AMD
  • Intel
  • Intel
  • Intel
  • Xeon Scalable
  • Xeon E7
  • Xeon E5
  • Xeon Scalable
  • Xeon E5
  • Xeon E3
  • Core i3
  • Pentium
  • Celeron
  • EPYC
  • Xeon Scalable
  • Xeon E7
  • Xeon E5
  • Xeon E3
  • Xeon Scalable
  • Xeon E3
  • Core i3
  • Pentium
  • EPYC
  • Xeon Scalable
  • Xeon E7
  • Xeon E5
  • Xeon Scalable
  • Xeon E3
  • Xeon E5
  • Xeon E3
  • Core i3
  • Pentium
  • Celeron
up to 6 TB
up to 6 TB
up to 6 TB
up to 6 TB
N/A
up to 1,5 TB
up to 12 TB
up to 360 TB
up to 153 TB
N/A
N/A
N/A
N/A
up to 368 TB
up to 60
up to 32
up to 24
up to 48
up to 40
up to 28
up to 24
up to 4
N/A
up to 4
up to 4
up to 4
1, additional power supply supported
up to 2
up to 1600W
up to 2400W
up to 2100W
N/A
up to 3000W
up to 1300W
up to 1600W
3 years
N/A
3 years
3 years
N/A
3 years
3 years
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Suppliers Rack Server

Cisco

Cisco

Cisco Systems, Inc. is an American multinational corporation technology company headquartered in San Jose, California, that designs, manufactures and... Read more
Vendor, Supplier
Hewlett Packard Enterprise

Hewlett Packard Enterprise

Hewlett Packard Enterprise (HPE) is an American multinational information technology enterprise company, founded 1 November 2015 as part of the... Read more
Vendor, Supplier
IBM

IBM

IBM (International Business Machines) ia an american electronic corporation, one of the world's largest manufacturers of all types of computers and... Read more
Vendor, Supplier

F.A.Q about Rack Server

What is a ‘rack unit’?

A rack unit is the designated unit of measurement used when describing or quantifying the vertical space you have available in any equipment rack. One unit is equal to 1.75 inches, or 4.45 centimeters. Any equipment that has the ability to be mounted onto a rack is generally designed in a standard size to fit into many different server rack heights. It’s actually been standardized by the Electronic Industries Alliance (EIA). The most common heights are between 8U to 50U, but customization is also a viable option if you’re working with nonstandard sizes.

Are there any specific ventilation requirements with server racks?

Over 65% of IT equipment failures are directly attributed to inadequate, poorly maintained, or failed air conditioning in the server room. So yes, proper ventilation is a critical part of maintaining any data center. Some cabinet manufacturers construct side panel ventilation instead of front and back ventilation, but experts say it’s inadequate for rack mount servers. This can be especially dangerous if more than one cabinet is being set up at once. The importance of proper ventilation should not be taken lightly, and you should always opt for front to back ventilation except in network applications where the IT equipment exhausts out the side.

What is meant by ‘server rack depth’?

Server rack depth is a critical aspect of the ventilation process. Connectworld.net says, “Server cabinet depth is important not only because it has to allow room for the depth of the particular equipment to be rack-mounted (deep servers vs. routers or switches), but also it has to allow sufficient room for cables, PDU’s as well as airflow.