Ravi Sir's Cards › AWS
mdadm in 4 steps
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Why do we need it?
Survive a disk failure.
What is it?
--create with level and disks.
How to do it
Watch /proc/mdstat.
Example
Save config.
sudo mdadm --detail --scan