AWS Snowball User Guide
paravirtual virtualization See PV virtualization.
part A contiguous portion of the object's data in a multipart upload request.
partition key A simple primary key, composed of one attribute (also known as a hash attribute).
See Also partition key, sort key.
PAT Port address translation.
pebibyte A contraction of peta binary byte, a pebibyte is 2^50 or 1,125,899,906,842,624
bytes. A petabyte (PB) is 10^15 or 1,000,000,000,000,000 bytes. 1,024 PiB is an
exbibyte (p. 132).
period See sampling period.
permission A statement within a policy (p. 144) that allows or denies access to a particular
resource (p. 148). You can state any permission like this: "A has permission to do
B to C." For example, Jane (A) has permission to read messages (B) from John's
Amazon SQS (p. 113) queue (C). Whenever Jane sends a request to Amazon
SQS to use John's queue, the service checks to see if she has permission and if the
request satisfies the conditions John set forth in the permission.
persistent storage A data storage solution where the data remains intact until it is deleted. Options
within AWS (p. 114) include: Amazon S3 (p. 113), Amazon RDS (p. 113),
Amazon DynamoDB (p. 110), and other services.
physical name A unique label that AWS CloudFormation (p. 116) assigns to each
resource (p. 148) when creating a stack (p. 153). Some AWS CloudFormation
commands accept the physical name as a value with the --physical-name
parameter.
pipeline AWS CodePipeline (p. 117): A workflow construct that defines the way software
changes go through a release process.
plaintext Information that has not been encrypted (p. 130), as opposed to
ciphertext (p. 123).
policy IAM (p. 118): A document defining permissions that apply to a user, group,
or role; the permissions in turn determine what users can do in AWS. A
policy typically allow (p. 109)s access to specific actions, and can optionally
grant that the actions are allowed for specific resource (p. 148)s, like EC2
instance (p. 129)s, Amazon S3 (p. 113) bucket (p. 122)s, and so on. Policies
can also explicitly deny (p. 128) access.
Auto Scaling (p. 115): An object that stores the information needed to launch
or terminate instances for an Auto Scaling group. Executing the policy causes
instances to be launched or terminated. You can configure an alarm (p. 109) to
invoke an Auto Scaling policy.
policy generator A tool in the IAM (p. 118) AWS Management Console (p. 119) that helps you
build a policy (p. 144) by selecting elements from lists of available options.
policy simulator A tool in the IAM (p. 118) AWS Management Console (p. 119) that helps you
test and troubleshoot policies (p. 144) so you can see their effects in real-world
scenarios.
policy validator A tool in the IAM (p. 118) AWS Management Console (p. 119) that examines
your existing IAM access control policies (p. 144) to ensure that they comply
with the IAM policy grammar.
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