A user is trying to create a PIOPS EBS volume with 8 GB size and 200 IOPS. Will AWS create the volume?
A.
Yes, since the ratio between EBS and IOPS is less than 30
B.
No, since the PIOPS and EBS size ratio is less than 30
C.
No, the EBS size is less than 10 GB
D.
Yes, since PIOPS is higher than 100
Explanation:
A provisioned IOPS EBS volume can range in size from 10 GB to 1 TB and the user can provision up to 4000
IOPS per volume. The ratio of IOPS provisioned to the volume size requested should be a maximum of 30; for
example, a volume with 3000 IOPS must be at least 100 GB.
Answer is A
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
An io1 volume can range in size from 4 GiB to 16 TiB and you can provision up to 20,000 IOPS per volume. The ratio of IOPS provisioned to the volume size requested can be a maximum of 30; for example, a volume with 3,000 IOPS must be at least 100 GiB. You can stripe multiple volumes together in a RAID configuration for larger size and greater performance.
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A is correct
4GiB – 16TiB
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A. 200/8 < 30.
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Limits are changed. its 50:1 now
An io1 volume can range in size from 4 GiB to 16 TiB and you can provision up to 20,000 IOPS per volume. The maximum ratio of provisioned IOPS to requested volume size (in GiB) is 50:1. For example, a 100 GiB volume can be provisioned with up to 5,000 IOPS. Any volume 400 GiB in size or greater allows provisioning up to the 20,000 IOPS maximum
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html
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I agree with this as the question is old. It’s 50:1 ratio
Tested scenarios:
8GiB volume size can have IOPS of min 100 and max 400.
If IOPS is 200 then min volume should be 4GiB and max can be 16384GiB
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c
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Outdated question
Provisioned IOPS SSD (io1) Volumes
Provisioned IOPS SSD (io1) volumes are designed to meet the needs of I/O-intensive workloads, particularly database workloads, that are sensitive to storage performance and consistency. Instead of using a bucket and credit model to calculate performance, an io1 volume allows you to specify a consistent IOPS rate when you create the volume, and Amazon EBS delivers within 10 percent of the provisioned IOPS performance 99.9 percent of the time over a given year.
An io1 volume can range in size from 4 GiB to 16 TiB and you can provision up to 20,000 IOPS per volume. The maximum ratio of provisioned IOPS to requested volume size (in GiB) is 50:1. For example, a 100 GiB volume can be provisioned with up to 5,000 IOPS. Any volume 400 GiB in size or greater allows provisioning up to the 20,000 IOPS maximum.
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A 200/30 is 6GB
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Answer is D.
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A
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