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#!/usr/bin/env python3
import subprocess
import json
from pprint import pprint
smart_result = subprocess.run(["sudo", "smartctl", "-Aij", "/dev/sda"], capture_output=True, text=True)
smart_result = json.loads(smart_result.stdout)
sector_size = smart_result["logical_block_size"]
from typing import NamedTuple
class RawValue(NamedTuple):
value: int
string: str
class Flags(NamedTuple):
value: int
string: str
prefailure: bool
updated_online: bool
performance: bool
error_rate: bool
event_count: bool
auto_keep: bool
class SmartAttribute(NamedTuple):
id: int
name: str
value: int
worst: int
thresh: int
when_failed: str
flags: dict
raw: dict
attributes = {}
for attr in smart_result["ata_smart_attributes"]["table"]:
attr_l = SmartAttribute(**attr)
attributes[attr_l.id] = attr_l
if 241 in attributes:
lbas_written = attributes[241].raw["value"]
print((lbas_written * sector_size) / 10**12)
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