New instance of AWS AMI ScyllaDB 5.2.8 failed to start Scylla Server

ScyllaDB
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1

Installation details
#ScyllaDB version: 5.2.8
#Cluster size: single node
aws AMI:

Getting Below error:
[shard 0] init - I/O Scheduler is not properly configured! This is a non-supported setup, and performance is expected to be unpredictably bad.
Reason found: none of --max-io-requests, --io-properties and --io-properties-file are set.
To properly configure the I/O Scheduler, run the scylla_io_setup utility shipped with Scylla.

Is it supposed to work like this?

2

You are running an old version that is no longer supported; please upgrade.
What happens when you run the utility as the message suggests?

3

I had to add developer_mode: true in the scylla.yaml to up the server .

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