21 Access Layer switches with 48 ports each

1. 
   Access Layer: 21 access layer switches, 48 ports each, will be distributed throughout the data center. These switches will connect end-user devices such as servers and workstations to the network.
   

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  21 Access Layer switches with 48 ports each
  

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  Assuming the Access Layer switches are of standard size and occupy a space of 1U (1.75 inches) in a standard rack.
  

1. 
   Calculate the number of rack units (U) required for the Access Layer switches: Number of rack units required = Number of switches × Size of each switch (in U) Number of rack units required = 21 switches × 1 U/switch Number of rack units required = 21 U
   
2. 
   Convert the number of rack units to inches or feet: Assuming 1U is equal to 1.75 inches, we can convert it to feet by dividing by 12. Size in feet = Number of rack units required × 1.75 inches/12 inches/feet Size in feet = 21 U × 1.75 inches/12 inches/feet Size in feet = 3.0625 feet
   

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1. 
   Access layer switches:
   
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     Quantity: 21 switches
     
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     Port capacity: 48 ports each
     
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     Floor space requirement: Assuming a standard 1U switch size, each switch will occupy approximately 0.044 square meters (1U rack space).
     

1. 
   Calculate the base floor space for the access layer switches:
   
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     Quantity: 21 switches
     
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     Size per switch: 0.044 square meters (1U rack space)
     
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     Base floor space: 21 switches * 0.044 square meters/switch = 0.924 square meters
     
2. 
   Add space for future expansion:
   
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     Quantity: 1 additional rack
     
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     Size per rack: Assuming a standard 42U rack, it occupies approximately 1.848 square meters (42 * 0.044 square meters/U)
     
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     Additional floor space for expansion: 1 rack * 1.848 square meters/rack = 1.848 square meters
     
3. 
   Add space for walk-through:
   
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     Size for walk-through: Twice the base floor space (assuming width)
     
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     Additional floor space for walk-through: 2 * 0.924 square meters = 1.848 square meters
     
4. 
   Calculate any additional space needed:
   
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     This would depend on any specific requirements or equipment that might require extra space, such as cable management, power distribution units (PDUs), or other supporting infrastructure. Additional space requirements should be determined based on the specific data center design and equipment configuration.
     
5. 
   Total floor space requirement:
   
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     Summing up the base floor space, space for future expansion, space for walk-through, and any additional space needed:
     
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     Total floor space requirement = Base floor space + Additional space for expansion + Additional space for walk-through + Additional space needed
     

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2. 
   Distribution layer switches:
   
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     Quantity: 9 switches
     
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     Port capacity: 48 ports each
     
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     Floor space requirement: Same as access layer switches, approximately 0.044 square meters per switch.
     
3. 
   File servers:
   
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     Quantity: 7 servers
     
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     Hard disk size: 3.25"
     
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     Floor space requirement: Assuming a standard 1U server size, each server will occupy approximately 0.044 square meters.
     
4. 
   Other servers:
   
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     Quantity: 59 servers
     
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     Size: 1U
     
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     Floor space requirement: Same as file servers, approximately 0.044 square meters per server.
     
5. 
   Routers:
   
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     Quantity: 6 routers
     
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     Floor space requirement: Depending on the specific router models, the size can vary. Assuming a standard 1U router size, each router will occupy approximately 0.044 square meters.
     
6. 
   Firewalls:
   
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     Quantity: 4 firewalls
     
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     Floor space requirement: Similar to routers and switches, assuming a standard 1U firewall size, each firewall will occupy approximately 0.044 square meters.
     
7. 
   Core switches:
   
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     Quantity: 2 switches
     
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     Size: 8U each
     
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     Floor space requirement: Assuming a standard 1U rack space is 0.044 square meters, each core switch will occupy approximately 0.352 square meters.
     
8. 
   Management computers:
   
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     Quantity: 2 computers
     
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     Floor space requirement: Assuming a standard rack-mounted size, each computer will occupy approximately 0.044 square meters.
     
9. 
   Uninterruptible power supply (UPS):
   
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     Floor space requirement: The UPS size will depend on the power capacity required for all the computing equipment. The floor space requirement will vary based on the specific UPS model chosen.
     
10. 
    Air conditioning system:
    
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      Floor space requirement: The size of the air conditioning system will depend on the cooling capacity needed for the data center. The floor space requirement will vary based on the specific cooling system chosen.