Q44Design Resilient Architectures
A company stores 700 terabytes of data on a large network-attached storage (NAS) system in its corporate data center. The company operates in a hybrid environment with a 10 Gbps AWS Direct Connect connection. After a regulator's audit, the company has 90 days to move the data to the cloud. The company must move the data efficiently and without disruption. The company must also continue to access and update the data during the transfer window. Which solution will meet these requirements?
← → navigate · a answer
Community votes
Discussion · 21
13
For those who wonders why not B. Snowball Edge Storage Optimized device for data transfer is up to 100TB
https://docs.aws.amazon.com/snowball/latest/developer-guide/device-differences.html
A 11
Access during the transfer window -> DataSync
8
This account is wrong but I get your point. It is wrong cause 10Gb/s is not the same as 10GB/s (Gigabits vs Gigabytes). However, the correct count is 864Tb/8 = 108TB per day. In one week you should've transferred all the data.
A 5
Finally, a company with good bandwidth.
A 5
AWS DataSync can efficiently transfer large datasets from on-premises NAS to Amazon S3 over Direct Connect.
DataSync allows accessing and updating the data continuously during the transfer process.
A 5
A for me, bcs egde storage up to 100tb
A 4
By leveraging AWS DataSync in combination with AWS Direct Connect, the company can efficiently and securely transfer its 700 terabytes of data to an Amazon S3 bucket without disruption. The solution allows continued access and updates to the data during the transfer window, ensuring business continuity throughout the migration process.
4
The question explicitly mentioned "devices", also Snowball Edge Storage Optimized is 80TB HDD. So it is possible, but the answer is A because we can transfer with DataSync in 6.5 days.
3
From Google Translate:
A- Because The company still needs to be able to access and update the data during the transfer window
B-Although this could be an option because it says that sending the devices to the data center would be more or less between 9 and 10 devices since the storage optimized storage is 80 TB, the problem is that with Snowball Edge Storage Optimized it does not Data can be accessed and updated during transfer
A 3
Critical requirement: "The company needs to move the data efficiently and without disruption."
B: Causes disruption
C: I don't think that is possible without a gateway kind of thing
D: Tape backups? " Mount a target Amazon S3 bucket on the on-premises file system"? This requires some gateway which is not mentioned
A is the answer as DataSync allows transfer without disruption and with 10Gbps, it can be done in 90 days.
A 3
AWS DataSync is a secure, online service that automates and accelerates moving data between on premises and AWS Storage services.
A 2
(B) is incorrect bc although Mountpoint for S3 is possible for on-premises NAS, this is not as efficient as AWS DataSync. Data updates made during the transfer window would have to be resolved later.
2
A- Porque La compañía todavía necesita poder acceder y actualizar los datos durante la ventana de transferencia
B-Aunque esta podria ser una opcion porque dice de enviar los dispositivosal al centro de datos que serian mas o menos entre 9 y 10 dispositivos ya que el almacenamiento de storage optimized es de 80 TB el problema esta en que con Snowball Edge Storage Optimized no se puede acceder y actuializar a los datos durante la transferencia
2
A
https://www.examtopics.com/discussions/amazon/view/46492-exam-aws-certified-solutions-architect-associate-saa-c02/#:~:text=Exam%20question%20from,Question%20%23%3A%20385
2
That's right, 1 GB = 8 Gb. Essentially we have a speed of 1.25GB/s.
1
folks, you had to consider the typical TCP overheads for such over-the-wire data transfers.... it could be as high as 70% of the total available bandwidth due to a wide variety of factors
1
folks, you had to consider the typical TCP overheads for such over-the-wire data transfers.... it could be as high as 70% of the total available bandwidth due to a wide variety of factors
in a worst case scenario, we could be looking @ 3.24 TB/ day
A 1
700TB with a Bandwidth of 10Gbps takes approximately 7 days, 3 Hours, 2 Minutes, 7 Seconds
As per the below link>>
https://expedient.com/knowledgebase/tools-and-calculators/file-transfer-time-calculator/
So Option A is Correct & using AWS Datasync facilitates further access to data still present in the OnPrem to access and S3 provides with unlimited data storage capacity
1
10GBs * 24*60*60 =864,000 GB estimate around 864 TB a day, 2 days will transfer all data. But for snowball at least 4 days for delivery to the data center.
A 1
A- Porque La compañía todavía necesita poder acceder y actualizar los datos durante la ventana de transferencia
B-Aunque esta podria ser una opcion porque dice de enviar los dispositivosal al centro de datos que serian mas o menos entre 9 y 10 dispositivos ya que el almacenamiento de storage optimized es de 80 TB el problema esta en que con Snowball Edge Storage Optimized no se puede acceder y actuializar a los datos durante la transferencia
1
I will put simple calculation for oyu guys to just store in your head to quickly answer:
for 10GBPS its 1.25GBPS becasue its bits to bytes.
for one minute its 75GBPS
for one hour its 4500 GBPS
for one day its 10.8 TB
so you can calculate easily if you just store these numbers in your head. lets say if question is 1GBPS DirectConnect that meand everything above should be divide by 8. cool