AWS CLI command to list volumes changed from gp2 to gp3

aws cloudtrail lookup-events \
  --lookup-attributes AttributeKey=EventName,AttributeValue=ModifyVolume \
  --start-time "$(date -d '00:00' --iso-8601=seconds)" \
  --end-time "$(date -d '23:59' --iso-8601=seconds)" \
  --query 'Events[?contains(CloudTrailEvent, `gp3`)]' \
  --output json | jq -r '
    .[] 
    | .CloudTrailEvent 
    | fromjson 
    | [
        .eventTime, 
        .requestParameters.ModifyVolumeRequest.VolumeId, 
        .responseElements.ModifyVolumeResponse.volumeModification.originalVolumeType, 
        .requestParameters.ModifyVolumeRequest.VolumeType
      ] 
    | @tsv'

output: 
2025-05-29T15:25:42Z	vol-0b2b9602bf3275c70	gp2	gp3
2025-05-29T15:25:49Z	vol-08403d278904ba5dd	gp2	gp3

list volumes with name:

VOLUMES=(
  vol-0123456789abcdef0
  vol-0fedcba9876543210
  vol-0a1b2c3d4e5f6a7b8
  vol-09f8e7d6c5b4a3f2e
  vol-0555aaaa9999bbbb1
)

for VOL in "${VOLUMES[@]}"; do
  INSTANCE_ID=$(aws ec2 describe-volumes \
    --volume-ids "$VOL" \
    --query 'Volumes[0].Attachments[0].InstanceId' \
    --output text)

  if [ "$INSTANCE_ID" != "None" ]; then
    NAME=$(aws ec2 describe-instances \
      --instance-ids "$INSTANCE_ID" \
      --query 'Reservations[0].Instances[0].Tags[?Key==`Name`]|[0].Value' \
      --output text)
    echo -e "$VOL\t$INSTANCE_ID\t$NAME"
  else
    echo -e "$VOL\t(no instance attached)"
  fi
done

output:
VOLUME ID                       INSTANCE ID                  INSTANCE NAME
vol-0123456789abcdef0          i-0a1b2c3d4e5f6g7h8           web-prod-1
vol-0fedcba9876543210          i-09f8e7d6c5b4a3f2e           db-staging
vol-0a1b2c3d4e5f6a7b8          (no instance attached)