Step one says to enter:
$trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesday,Wednesday,Thursday,Friday -at 06:00

This results in the error:
At line:1 char:1

• $trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesd ...

Assignment statements are not allowed in restricted language mode or a Data section.
At line:1 char:1

• $trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesd ...

A variable that cannot be referenced in restricted language mode or a Data section is being
referenced. Variables that can be referenced include the following: $PSCulture, $PSUICulture, $true,
$false, $null.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : AssignmentStatementNotSupportedInDataSection

===== ALSO ========

set-fsxshadowcopyschedule -scheduledtasktriggers $Using:trigger1,$Using:trigger2 -Confirm:$false }

results in:

At line:1 char:98

• ... heduledtasktriggers $Using:trigger1,$Using:trigger2 -Confirm:$false }

•                                                                     ~
  

Unexpected token '}' in expression or statement.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : UnexpectedToken

There are two Step 5's.

section: Impact of Storage Capacity on Performance
there is a small 3x3 table, it shows HDD having the same throughput and IOPS per TiB...surely thats not right? that would also mean a 1 MB IO size, my understanding that is pretty rare also. it would be good to see a correction if applicable, and some IO size discussion.

As I can see it's not listed on documentation, it's because not tested or doesn't support at all?

Step one says to enter:
$trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesday,Wednesday,Thursday,Friday -at 06:00

This results in the error:
At line:1 char:1

• $trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesd ...

Assignment statements are not allowed in restricted language mode or a Data section.
At line:1 char:1

• $trigger1 = new-scheduledTaskTrigger -weekly -DaysOfWeek Monday,Tuesd ...

A variable that cannot be referenced in restricted language mode or a Data section is being
referenced. Variables that can be referenced include the following: $PSCulture, $PSUICulture, $true,
$false, $null.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : AssignmentStatementNotSupportedInDataSection

mal formed object DomainControllers line 614, from https://docs.aws.amazon.com/fsx/latest/WindowsGuide/samples/AmazonFSxADValidation.zip

$DomainControllers[$DCName] = [PSCustomObject]@{
Name = $AResult.Name
IPAddress = $AResult.IPAddress
Priority = $SrvResult.Priority
Weight = $SrvResult.Weight
}

The object Name is null, so it is not valid to proceed with the testing.

Here is the error:

a
Test 1 - Validate EC2 Subnets ...
Found region us-west-2 from EC2 instance metadata

SubnetId VpcId AvailabilityZoneId CidrBlock

subnet-12345 vpc-12345 usw2-az2 10.92.30.128/26

Test 2 - Validate connectivity with DNS Servers ...

Found the following XXX Domain Controllers by querying _ldap._tcp.dc._msdcs.local.com:

Name IPAddress Priority Weight

                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100
                  0    100