Data Centers Design? (Best Practices, Problems, Suggestions)

 

ups needs its backup also by install backup on and you must see if the building has a generator or not, cooling is fine you just need to do install like a control unit to manage them or do it manually by using night shift personal

 

 

 

As conveyed by some of my friends above that you will need N+1 UPS which has a inbuilt montitoring tool like the ones provided by APC or Rittal or Emirson. Or you can attach the UPS to a third party monitoring tool from Advent net, etc... also u should have a ATS in place which will regulate the power incase you have a power failure and start your generator automatically so no need to have man power deployed to manage this switchover. The monitoring system will notify you thru email or SMS when the power went and when it returned. Thsi solves your first issue.

There are a few servers which when heated start shut down process on their own like Sun M5000 servers and if the temperature rises they will shut down and getting them up and running is going to be a big task specially if you have critical applications running24 X7 operations then u r in real problem man. This can be resolved by firstly have a smart cooling system deployed which have in-row cooling solution which is rack based cooling and A/c controll room temperature based on the heat within the room. Or else calculate the cooling required for the room then have atleast1 A/c or2 a/c's on your generator so that incase power goes  off all your a/c are not switched off at the same time. 

Dear,

For power solution for DC you must use N+1 min configuration means incase of failure of one the other should support without interrution to critical servers.

For Cooling CRAC are recomended for smaller DC and should be backed by Diesel Gensets because UPS can provide backup power during power failure to IT Servers but AC require power to cool these machines also so DG sets are essential to deal with.

Envinoment monitoring is also necessary for smaller DC need not for BMS for little DC.

You may consult TIA-942 document and uptime Tier classification guide.

Thanks & Regards,

Rizwan

In My Opinion there are some important data must be collected from the Data Sheets for each device in the Data Center,

• Powering design
  • Max current in AMP
  • Average power consumptions in KVA
  • Average current in AMP
  • Start UP Power consumption in KVA

after collecting the above data for each device & taking into consideration the future expansion according to your business needs (usually25 :30 % for safety )

you will get from these calculations the needed power sources current & voltages & also the capacity for the required UPS

as for the backup time you should define the required backup time for the UPS units to calculate the needed batteries

• A/C design
  • you need to get the max BTU from each device data sheet
  • raised floor
  • maintain the air flow for the devices (front , Back or side fan trays)
  • you should take into consideration the air flow mechanism according to devices air flow orientation
  • should maintain the relative humidity according to the devices data sheet

after collecting these data you should have the capacity of the A/C systems with BTU & you also should add a safety margin for future expansion

hope this helps you and all members

 

 

You need to implement N+1 at component level and path level to achieve the required goal. you must follow tia-942 standard.

Your UPS should be backed up by generator to avoid sudden shutdown in case of long power shutdown. Generator should be able to take the power load of all your racks.

 

Airconditioning should be configured in a way that two air conditions will serve actively and one should be standby through a different power source in case of long power shutdown. your data center must have temperature alarm with auto dialer or auto SMS system. Selection of Air conditioning system is also a very critical decision because you dont want to create humidity in your data center, there are differnet techniques available to release humidity, one of them is filtered air flow to avoid enterance of dust. You can also chose rack cooling system with fan trays on top and bottom of racks.

 

I am assuming proper rasied floor (Fire protected walls, cieling, doors and floor) data center. It should be protected with minimum two auto release FM200 Gas cylinders.

 

Dear Abdullah. You will need to have redundancy and monitoring for all elements of your Data Center in order to reduce reliability of your Infrastructure. To have proper datacenter you will need following. a) N+1 or N+N power distribution. Where N is your Needed or Normal power +1     For this You will need2 independent UPS power sources for your IT Load (Rack distribution)     You will need ATS (Automatic Transfer Switches) or STS's (Static Transfer Switches)     They are responsible to switch over power from one source to other in case of power failure on one of the sources. b) You will need at least1 backup Generator which will recover your power during Utility power failure. UPS's will keep power up during power failure till your generator will start and will recover your power distribution of your Data Center. For this you will also need an other big ATS which should be installed in your main utility power input of your Data Center. When utility power not available, your backup generator should start automatically and ATS should automatically transfer power from utility source to your Generator.

Your UPS load shouldn’t be more than50% on each UPS in order to keep power redundancy. It’s necessary because in case of one UPS failure, your IT load will be transferred to second UPS and if load will be more than100% second UPS will switch OFF as well. Example If you have10KW IT Load. You will need2 x10kW UPS’s which should be loaded no more than5kw each.

 

c) You will need N+1 cooling in your Data Center. Which means if you have let say10kw IT load, then you will need2 x HVAC Units with10kw cooling power each one. In case of Cooling unit failure, second unit should handle the cooling load. Cooling Units Shouldn't be connected to UPS power. They have to be fed from Main Utility power distribution boards. During power failure they will be down for1 minute till Generator power will handle the load of your UPS's and cooling units. d) You will also need to monitor all your data center infrastructure elements. UPS's Generator, Cooling Units, Rack ATS's, Temperature, Humidity, PDU’s e.t.c . Most preferable is to have SNMP web interface monitored devices and read values and have alarms from all of them if any appears.

 

e) You will also need automated fire fighting system which will be activated in case of fire in your data center. From my experience, best system is based on FM200 gas technology. And this is only brief introduction of proper data center if you want to have UP time99.xxxx % of your infrustructure.

 

Data Center Design & InstallationYour Data Center houses the mission-critical computer systems and applications that support and drive your business. Whether you are building a new Data Center, planning a Disaster Recovery Site, or simply expanding a Server Room,the DC should support your needs and allow you to easily install new equipment and manage your network.

 

Components:

 

• Raised Flooring Systems
• Trays and Pathways
• Structured Cabling Fiber and Copper Systems
• Environmental Systems (Air Conditioning/Fire Suppression)
• Power and Backup Systems
• Surveillance and Access Control Systems

for  more i will send to you a full detailed Guide for data centers design .

 

Best regards

for Heat issue you should have monitoring for heat inside DC room & rack it self. I believe that UPS have temprature sensor  you can find it & activate it immedatially because it gives you alaram when heat/temp exceeds the limits you predetermined.

for backup I agree with to find small DG during power is unavailable.

 

Depend on the size and the requirements for the Data Center,10KVA can be used for single Rack , the AC units usually don't suites the Data centers but it maybe accepted for small one with good management and  monitoring 

Pick up the tia-942. Readit throughly and then look at you environment and need. Try to follow any n everything you can from each tier. Somtimes following100% to the book for a specific tier is impossible.