Tu100 - Tma04
1)a.i. 140 * 341,000,000 = 47,740,000,000 bytes.
1GB = 230 = 1,073,741,824 bytes
47,740,000,000/1,073,741,824 = 44.5GB (3 s.f.) ii. 4.77 * 1010
b. 2 TB = 2*240 = 2199023255552 bytes
2,199,023,255,552/47,740,000,000 = 46 days (rounded to the nearest whole number)
c. Week | Data created in week (GB) | Total for Complete (GB) | Total for Incremental (GB) | Total for Differential (GB) | 1 | 25 | 25 | 25 | 25 | 2 | 50 | 100 | 75 | 75 | 3 | 50 | 225 | 125 | 175 | 4 | 100 | 450 | 225 | 375 | 5 | 25 | 700 | 250 | 600 | 6 | 250 | 1200 | 500 | 1075 | 7 | 25 | 1725 | 525 | 1575 | 8 | 50 | 2300 | 575 | 2125 |
I would recommend from the above table that the video maker uses incremental back-up. The advantage of this being that firstly, after the 8 week period the 2TB storage would be suffice to keep all the back-up data. The main advantage of incremental back-up is that using this method only new data would be transferred, thus with no duplication of data less storage space is required, and additional to this it reduces the time required to back-up the data. The disadvantage of this is that when retrieving the data, all the different back-ups will need to be retrieved to get all the relevant data.
A suitable alternative may be differential back-up. Although the above table shows that this would also exceed the 2TB storage available, by performing a full back-up on week 6, this would reduce the total storage required. This method also makes retrieval of data much quicker as only two back-ups are required, being the most recent differential back-up and the latest full back-up performed.
2) Dear Ms La Maniac,
In relation to your mail, I have found that cloud computing can be an effective way to reduce licencing costs and share documents between users. Moving away from using Windows OS and using a cloud based OS, can also be beneficial as would require less processing power for each user terminal. I would also assume that like most technologies
1GB = 230 = 1,073,741,824 bytes
47,740,000,000/1,073,741,824 = 44.5GB (3 s.f.) ii. 4.77 * 1010
b. 2 TB = 2*240 = 2199023255552 bytes
2,199,023,255,552/47,740,000,000 = 46 days (rounded to the nearest whole number)
c. Week | Data created in week (GB) | Total for Complete (GB) | Total for Incremental (GB) | Total for Differential (GB) | 1 | 25 | 25 | 25 | 25 | 2 | 50 | 100 | 75 | 75 | 3 | 50 | 225 | 125 | 175 | 4 | 100 | 450 | 225 | 375 | 5 | 25 | 700 | 250 | 600 | 6 | 250 | 1200 | 500 | 1075 | 7 | 25 | 1725 | 525 | 1575 | 8 | 50 | 2300 | 575 | 2125 |
I would recommend from the above table that the video maker uses incremental back-up. The advantage of this being that firstly, after the 8 week period the 2TB storage would be suffice to keep all the back-up data. The main advantage of incremental back-up is that using this method only new data would be transferred, thus with no duplication of data less storage space is required, and additional to this it reduces the time required to back-up the data. The disadvantage of this is that when retrieving the data, all the different back-ups will need to be retrieved to get all the relevant data.
A suitable alternative may be differential back-up. Although the above table shows that this would also exceed the 2TB storage available, by performing a full back-up on week 6, this would reduce the total storage required. This method also makes retrieval of data much quicker as only two back-ups are required, being the most recent differential back-up and the latest full back-up performed.
2) Dear Ms La Maniac,
In relation to your mail, I have found that cloud computing can be an effective way to reduce licencing costs and share documents between users. Moving away from using Windows OS and using a cloud based OS, can also be beneficial as would require less processing power for each user terminal. I would also assume that like most technologies
References: * The Impact of Kickstarter, Creative Commons & Creators Project (21 Mar 2012) YouTube video, added by PBSoffbook [Online], Available at http://www.youtube.com/ watch?v=024vLBBJf4I (from minutes 0:00 to 2:20) (Accessed 29 October 2012). * Fargo: Control Electrical Devices Over the Internet, by Linor Technology Inc. Gary S. Nalven, at http://www.kickstarter.com/projects/1025570204/fargo-control-electrical-devices-over-the-internet?ref=category (Accessed 11/06/2013).