Server Solutions
Put the heavy power at the bottom and the machines on rails, so a failed server slides out and the room stays cool from front to back. Open a cabinet for the cable side, and add the storage and the UPS that keep the service up.
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Choose a glowing dot to explore the device and its connections. Illustrative room. Shop actual products alongside it.
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Server memory
Match the memory generation, registered or unbuffered type, capacity and population rules to the exact server model. These are options to check, not a guaranteed compatible upgrade.
Server drives
Check the server's drive form factor, SAS/SATA/NVMe interface, backplane, carrier and supported firmware before choosing a replacement or extra drive.
Server processor
A processor must match the server's socket, platform generation, firmware and cooling. Confirm the exact supported part before adding one.
Rails
Rails are specific to the server generation. A DL380 rail kit does not fit a DL360, and a sliding rail is what lets you work on the server without removing it. Order the rail with the server. Universal shelves are a fallback for appliances, not a substitute for the rail the server was tested on.
PDU
Servers want IEC outlets, not a domestic trailing socket. A basic PDU with C13 outlets matches a standard server power supply. A switched PDU is worth it when the rack is in another building and a hard power cycle is the last recovery step. Spread the two power supplies of a redundant server across two PDUs if you have two circuits; one PDU is a single point of failure even when the server is not.
Storage
Shared files belong on a rack NAS (a Synology RackStation or similar), not on the server's boot disks. A 1U or 2U NAS with its own RAID sits above the UPS and has its own power lead to the PDU. Give it a network port on the switch in the same rack. Desktop NAS units work, but they waste the point of a rack and their disks run warmer in a closed shelf.
Blanking panels
A blanking panel closes an empty U so the cold air in the aisle cannot slip past the chassis and back to the intake. One panel per unused U, in the same 19-inch spacing as the servers.
Top-of-rack switch
A top-of-rack switch is the switch at the top of each cabinet, linking that rack's servers back to the room. It is behind the mesh here, not a separate object you can point at. Size the uplinks for the servers in that rack, not for the cameras on another floor.
SFP+
An SFP+ transceiver sits in the switch or the server's uplink cage. The optic joins the cart only when you select it.
DAC
A direct-attach cable is the short copper link between a server and the top-of-rack switch in the same cabinet. It joins the cart only when you select it.
Fibre jumpers
Short fibre leads run from a transceiver to the tray or the next device. The overhead tray is already dotted; these jumpers are the short ones inside a cabinet, and they join the cart only when you select them.
Server power supply
The back of the rack is the power-supply face: the inlets and the hot-plug modules. A spare supply has to be a photograph of the supply itself, and it has to match the chassis. A brand mark is not shown.
Cable arm
A cable management arm carries the power leads and the network leads as the server slides out on its rails. It is specific to the rail kit. Check that the arm fits the chosen rails.
Worked setups
One application server
A single rack server for an office application, with enough power to shut down cleanly and a console for the day the network does not come up.
Shop this setup
- DIGITUS 482.6 mm (19") Server Cabinet Unique Server-N Series 800x1000 mm (WxD) 42U - Grey RAL 7035. A floor cabinet deep enough for the server and the cable arm.
- DELL PowerEdge R360 server 480 GB Rack (1U) Intel Xeon 6 6325P 3.5 GHz 32 GB DDR5-SDRAM 700 W. A 1U rack server. Order the rail kit with it.
- Synology RKM114 rack accessory Rack rail kit. The sliding rail for that chassis, not a universal shelf.
- APC Smart-UPS SMT1500RMI2UNC - 4x C13, USB, rack mountable, NMC, 1500VA. A rack UPS at the bottom, sized at the server's real wattage.
- Digitus Power strip 19" Rack PDU, 8x type E sockets, 1.8m, 1x unischuko plug, 16A, on/off switch, aluminum. C13 outlets. Use both server power supplies if it has two.
- Digitus 17" LCD KVM Console, 1-Port VGA, german Keyboard. A 1U console so the rack can be worked on locally.
- Fan panel A19P-2W for rack cabinet. A roof fan only if the cabinet door is vented.
Server plus shared storage
The same cabinet with a rack NAS beside the server, so user files are not on the server's boot volume.
Shop this setup
- DELL PowerEdge R360 server 480 GB Rack (1U) Intel Xeon 6 6325P 3.5 GHz 32 GB DDR5-SDRAM 700 W. The application server, on its own rails.
- Synology RackStation RS1221+ NAS/storage server Rack (2U) Ryzen Embedded V1500B 4 GB DDR4 0 TB DiskStation Manager Black. A 1U or 2U rack NAS, with disks sized for the shares plus growth.
- APC Smart-UPS SMT1500RMI2UNC - 4x C13, USB, rack mountable, NMC, 1500VA. Large enough for the server and the NAS to shut down together.
- Digitus Power strip 19" Rack PDU, 8x type E sockets, 1.8m, 1x unischuko plug, 16A, on/off switch, aluminum. One outlet each, and a spare for the switch that links them.
- Synology RKM114 rack accessory Rack rail kit. A second rail if the NAS did not ship with one.
Questions
Can I see the back of the rack?
Yes. Choose either cabinet row and use Front and Back, or the arrow keys while that view is open. The rear view explains power and cabling; the product list shows actual catalogue options. Back to room returns to the wide view.
Where should the UPS sit in the rack?
At the bottom. A rack UPS is the heaviest item in a small cabinet, and a high centre of gravity is how a rack tips while it is being moved. The bottom of the cabinet is also closest to the floor outlet, so the input lead stays short.
Do I need rails, or will a shelf do?
A shelf holds an appliance that was never meant to rack. A server needs its own rail kit: the sliding rail is what carries the chassis when you pull it out to change a disk or a fan. Universal rails and shelves do not line up with the server's mounting points, and the chassis is not supported while it is extended.
What does the KVM add if the server has remote management?
Remote management (iLO, iDRAC and the like) needs a network path and a configured port. A KVM console is the screen and keyboard at the rack when that path is down, during the first install, or when someone on site has to watch a firmware update. One 1U console covers a single server; an 8-port console covers a rack.
How should the cabinet be cooled?
Servers breathe front to back. Blanking panels close the unused U so cold air cannot slip past the chassis, and cabinet fans should exhaust at the rear or the roof, not blow onto the side. In a cupboard, the door has to be vented or the fans recirculate the same air.