49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
"""
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Linux BenchTools - Disk SMART Data Model
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"""
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from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey
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from sqlalchemy.orm import relationship
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from datetime import datetime
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from app.db.base import Base
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class DiskSMART(Base):
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"""
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SMART health and aging data for storage devices
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"""
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__tablename__ = "disk_smart_data"
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id = Column(Integer, primary_key=True, index=True, autoincrement=True)
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hardware_snapshot_id = Column(Integer, ForeignKey("hardware_snapshots.id"), nullable=False, index=True)
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captured_at = Column(DateTime, nullable=False, default=datetime.utcnow)
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# Disk identification
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device_name = Column(String(50), nullable=False) # e.g., "sda", "nvme0n1"
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model = Column(String(255), nullable=True)
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serial_number = Column(String(100), nullable=True)
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size_gb = Column(Float, nullable=True)
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disk_type = Column(String(20), nullable=True) # "ssd" or "hdd"
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interface = Column(String(50), nullable=True) # "sata", "nvme", "usb"
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# SMART Health Status
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health_status = Column(String(20), nullable=True) # "PASSED", "FAILED", or null
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temperature_celsius = Column(Integer, nullable=True)
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# Aging indicators
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power_on_hours = Column(Integer, nullable=True)
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power_cycle_count = Column(Integer, nullable=True)
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reallocated_sectors = Column(Integer, nullable=True) # Critical: bad sectors
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pending_sectors = Column(Integer, nullable=True) # Very critical: imminent failure
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udma_crc_errors = Column(Integer, nullable=True) # Cable/interface issues
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# SSD-specific
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wear_leveling_count = Column(Integer, nullable=True) # 0-100 (higher is better)
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total_lbas_written = Column(Float, nullable=True) # Total data written
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# Relationship
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hardware_snapshot = relationship("HardwareSnapshot", back_populates="disk_smart_data")
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def __repr__(self):
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return f"<DiskSMART(id={self.id}, device='{self.device_name}', health='{self.health_status}')>"
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