Cloud 9, a cloud storage service provider based in San Diego, has just announced
ID: 3888367 • Letter: C
Question
Cloud 9, a cloud storage service provider based in San Diego, has just announced that it is running out of money and will be shutting down operations soon. It has given all its clients fifteen (15) days to move their data out, either back to their own facility or to an alternative service provider.
Founded six years ago, Cloud 9 has since acquired 600 business clients, who use Cloud 9’s infrastructure to store archived data. Among these clients, a few are large companies with several terabytes (TB) of data archived at Cloud 9, but on average each client company stores about 300 Gigabytes (GB) of data on Cloud 9’s disk drives. Cloud 9’s connection to the Internet is a Gigabit Ethernet line that has an effective aggregate transmission rate of 900 Mbps (900,000,000 bits per second).
To make your calculations easier, a few assumptions have been made as follows:
Cloud 9’s Internet connection will be available 24 x 7 before the 15-day shutdown deadline.
Even if new funding could be arranged, there would be no time to add additional transmission lines to Cloud 9’s facility before the deadline.
For regulatory compliance reasons, Cloud 9’s clients cannot afford to lose their archived data, but none of them has a secondary backup copy of the data.
1 GB = 1,0243 Bytes = 1,073,741,824 Bytes
Questions:
If all of Cloud 9’s clients start moving their data out at the beginning of the 15-day period by sharing Cloud 9’s Internet connection, will there be enough time to move all the data out? Show your calculations.
What alternatives do Cloud 9’s clients have, other than moving their data out over telecommunications lines?
Explanation / Answer
Total number of clients = 600
On an average, each client is having data = 300GB = 2457600Mb (300x1024x8)
Total data in cloud = 2457600 x 600 = 1474560000 Mb
transmission rate = 900Mbps
if they share cloud 9’s internet connection,
1474560000 / 900 = 1638400 seconds to take all data.
1638400 / 60 = 27306 minutes
27306 / 60 = 455 hours
455 / 24 = 18 days
So they need totally 18 days to take total data with in the cloud.
Other than that, we can transfer the data to another cloud.
For example:
"Multcloud" is a multiple cloud management web application. using this we can transfer data within one cloud to another cloud.
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