AWS - Raw Notes

Glacier:
very cheap storage
useful for infrequently used data.ideal for backup
very very slow retrieval times
high durability
cost of restore
AES 256 bit data encryption
0.01 per GB

EC2:
pay per use, scalable platform for vms
support windows /linux instances
amazon machine image refers to a virtual disk template
you can import /export your own AMIS

ECU-elastic compte unit
Instance types:
Micro instances
Genaral purpose
compute optimized
GPU Instances
memory optimized
stroage optimized

on demand instances
reserved instance
spot instance



s3-it introduced 2006
99.99 % SLA-durability
first 1tb$0.0300/GB
configuring s3
bucket name is unique name.
s3 is internet accessable
permissions

EBS:
not internet accessible
persistent file system for EC2
does not need to be attached to an instance
can be transferred between AZ
supports incremental snapshots
ebs leverages s3 for snapshots storage
provisioned IOPS


elastic computing:

regions,availability zones
regions-geographical area
availabilty zones-data centers
edge locations-
DNS SLA IS 100%

security:
shared security model.
security groups
VPC
direct connect-gigabit connectivity
VPN ACCESS
Dedicated server
 IAM:
user and service managemementt
roles-set of privilages
controls access to aws resources
Multi factor authentication
API Access



An infrastructure service for the world
elastic computing
storage in the cloud
security and compliance
pricing and availabilty.

certification:
solution architects
sys ops
devops

pre requisites:


aws:
elastic services
expect infrastrucstructure failure
expertise forced on applications
application aware infrastructure
usage based costs
Limited Knowledge/shared support