Computer Server Rack created for rack-mounting can hold a number of additional features to offer a convenient usage for server in the rack:
* The sliding rails are able to lock in many extended ways preventing the equipment from moving when extended out from the rack for service.
* The server itself might have locking pins on the sides that just drop into slots on the extended rail assembly, in a manner similar to a removable kitchen drawer. This makes the server becomes very easy to install and remove since it is not necessary to hol the server in midair while someone fastens each rail to the sides of the server with screws.
* Some manufacturers of rack-mount hardware include a folding cable tray behind the server keeping the cables into a neat and tidy folded channel inside the rack. They can also unfold out it into a long strip when pull out of the rack, which allows the server to be continually plugged in and operating normally even while fully extended and hanging in midair in front of the rack. The folding cable tray, thus, helps simplify maintenance, but at the cost of providing a restriction to airflow.
* Rack-optimized servers might duplicate indicator lights on the front and rear of the rack to help identify a machine needing attention, or to provide a separate "identify" LED indicators on both sides of the server (which can be turned on in software or by pushing an associated button). Because some configurations allow over fifty 1U servers in a single rack, it provides a simple method to see exactly which machine is having a problem when at the rear of the rack.
* A handle of computer server rack may be provided at the rear of the server rails, to help pull or push the server without having to pull on the cables.
When there are many computers in a single rack, it is inoperative for each one to have its own individual keyboard, mouse, and monitor. Instead, a KVM switch or LOM software is used to share a single keyboard/video/mouse set amongst different computers.
Since the mounting hole arrangement is vertically symmetric, it is possible to mount rack-mountable equipment upside-down. However, there is only some equipments that suits for this type of mounting. For example, most optical disc players will not work upside-down as the driving motor mechanism does not grip the disc.
Resources: KVM Switch DVI | Server Rack | Computer Table |Computer Training Table
