A user has created an EBS volume of 10 GB and attached it to a running instance. The user is trying to access
EBS for first time. Which of the below mentioned options is the correct statement with respect to a first time
EBS access?
A.
The volume will show a size of 8 GB
B.
The volume will show a loss of the IOPS performance the first time
C.
The volume will be blank
D.
If the EBS is mounted it will ask the user to create a file system
Explanation:
A user can create an EBS volume either from a snapshot or as a blank volume. If the volume is from a
snapshot it will not be blank. The volume shows the right size only as long as it is mounted. This shows that the
file system is created. When the user is accessing the volume the AWS EBS will wipe out the block storage or
instantiate from the snapshot. Thus, the volume will show a loss of IOPS. It is recommended that the user
should pre warm the EBS before use to achieve better IO.
B will be blank. No mention about coming from snapshot
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“New EBS volumes receive their maximum performance the moment that they are available and do not require initialization (formerly known as pre-warming). However, storage blocks on volumes that were restored from snapshots must be initialized (pulled down from Amazon S3 and written to the volume) before you can access the block. ”
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-initialize.html
The question doesn’t say whether or not the volume is from a snapshot. If we assume not, then the answer must be C.
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C
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This is an outdated question.
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C
“New volumes are raw block devices, and you need to create a file system on them before you can mount and use them.”
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html
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Questions is Confusing…
If EBS volume is created from Snapshot then Answer is B. If not then answer C..
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OK, but the question is not saying that the eBS volume is created from a snapshot. B is correct
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Sorry…C is correct
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b
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Answer is C
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