samedi 20 février 2016

SMART HDD/SSD : Obtenir les infos SMART d'un disque dur

Travaillant actuellement sur un projet d'optimisation HDD/SSD, cela a nécessité de récupérer les informations SMART d'un disque dur de type SSD ou HDD en s'appuyant sur les objets WMI :

Voilà à quoi pourrait ressembler une telle librairie avec l'espace de nom "Smart" (en c#) :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Management;
 
namespace Smart
{
    public class Infos
    {
 
        public byte[] VendorSpecByte { get; set; }
        public string InstanceN { get; set; }
        public List Datas { get; set; }
 
        public Infos()
        {
            Datas = new List();
            LoadInfos();
        }
 
        private void LoadInfos()
        {
            using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\WMI", "SELECT VendorSpecific, InstanceName FROM MSStorageDriver_FailurePredictData"))
            {
                foreach (ManagementObject data in searcher.Get())
                {
                    try
                    {
                        this.VendorSpecByte = (byte[])data.GetPropertyValue("VendorSpecific");
                        this.InstanceN = (string)data.GetPropertyValue("InstanceName");
                        for (int i = 0; i <= 29; i++)
                        {
                            int id = VendorSpecByte[i * 12 + 2];
                            int flags = VendorSpecByte[i * 12 + 4];
                            bool failureImminent = (flags & 0x1) == 0x1;
                            UInt32 vendordata = BitConverter.ToUInt32(VendorSpecByte, i * 12 + 7);
                            if (!(id == 0))
                            {
                                PropertyContent pInfos = new PropertyContent();
                                pInfos.Id = id;
                                pInfos.Value = Convert.ToString(vendordata);
                                pInfos.IsOk = (failureImminent == false);
                                this.Datas.Add(pInfos);
                            }
                        }
                    }
                    catch (ManagementException ex)
                    {
                        throw new ManagementException("Erreur WMI", ex);
                    }
                }
            }
        }
 
        public string FormatToString()
        {
            string str = String.Empty;
            foreach (PropertyContent d in Datas)
            {
                str += ("ID:"
                             + (d.Id + ("\r\n" + ("PropertyName:"
                             + (d.PropertyName + ("\r\n" + ("PropertyValue:"
                             + (d.Value + ("\r\n" + ("PropertyState:"
                             + (Convert.ToString(d.IsOk) + "\r\n")))))))))));
            }
 
            return str;
        }
 
    }
 
    public class PropertyContent
    {
 
        private int m_Id;
        public int Id
        {
            get { return m_Id; }
            set
            {
                m_Id = value;
                switch (m_Id)
                {
                    case 1:
                        m_PropertyName = PropertyNames.RawReadErrorRate;
                        break;
                    case 2:
                        m_PropertyName = PropertyNames.ThroughputPerformance;
                        break;
                    case 3:
                        m_PropertyName = PropertyNames.SpinUpTime;
                        break;
                    case 4:
                        m_PropertyName = PropertyNames.StartStopCount;
                        break;
                    case 5:
                        m_PropertyName = PropertyNames.ReallocatedSectorCount;
                        break;
                    case 6:
                        m_PropertyName = PropertyNames.ReadChannelMargin;
                        break;
                    case 7:
                        m_PropertyName = PropertyNames.SeekErrorRate;
                        break;
                    case 8:
                        m_PropertyName = PropertyNames.SeekTimePerformance;
                        break;
                    case 9:
                        m_PropertyName = PropertyNames.PowerOnHours;
                        break;
                    case 10:
                        m_PropertyName = PropertyNames.SpinRetryCount;
                        break;
                    case 11:
                        m_PropertyName = PropertyNames.CalibrationRetryCount;
                        break;
                    case 12:
                        m_PropertyName = PropertyNames.PowerCycleCount;
                        break;
                    case 171:
                        m_PropertyName = PropertyNames.ProgramFailBlockCount;
                        break;
                    case 172:
                        m_PropertyName = PropertyNames.EraseFailBlockCount;
                        break;
                    case 173:
                        m_PropertyName = PropertyNames.UnknownAttribute;
                        break;
                    case 174:
                        m_PropertyName = PropertyNames.UnexpectedPowerLossCount;
                        break;
                    case 187:
                        m_PropertyName = PropertyNames.ReportedUncorrectableErrors;
                        break;
                    case 192:
                        m_PropertyName = PropertyNames.PoweroffRetractCount;
                        break;
                    case 193:
                        m_PropertyName = PropertyNames.LoadCycleCount;
                        break;
                    case 194:
                        m_PropertyName = PropertyNames.Temperature;
                        break;
                    case 196:
                        m_PropertyName = PropertyNames.ReallocationEventCount;
                        break;
                    case 197:
                        m_PropertyName = PropertyNames.CurrentPendingSectorCount;
                        break;
                    case 198:
                        m_PropertyName = PropertyNames.OfflineScanUncorrectableSectorCount;
                        break;
                    case 199:
                        m_PropertyName = PropertyNames.UltraDMACRCErrorCount;
                        break;
                    case 201:
                        m_PropertyName = PropertyNames.SoftReadErrorRate;
                        break;
                    case 220:
                        m_PropertyName = PropertyNames.DiskShift;
                        break;
                    case 230:
                        m_PropertyName = PropertyNames.LifeCurveStatus;
                        break;
                    case 232:
                        m_PropertyName = PropertyNames.AvailableReservedSpace;
                        break;
                    case 234:
                        m_PropertyName = PropertyNames.Reserved;
                        break;
                    case 241:
                        m_PropertyName = PropertyNames.LifetimeWritesFromHost;
                        break;
                    case 242:
                        m_PropertyName = PropertyNames.LifetimeReadsFromHost;
                        break;
                }
            }
        }
 
        private string m_PropertyName;
        public string PropertyName
        {
            get { return m_PropertyName; }
        }
 
        public string Value { get; set; }
        public bool IsOk { get; set; }
 
        private struct PropertyNames
        {
            public const string RawReadErrorRate = "Raw Read Error Rate";
            public const string ThroughputPerformance = "Throughput Performance";
            public const string SpinUpTime = "Spin Up Time";
            public const string StartStopCount = "Start/Stop Count";
            public const string ReallocatedSectorCount = "Reallocated Sector Count";
            public const string ReadChannelMargin = "Read Channel Margin";
            public const string SeekErrorRate = "Seek Error Rate";
            public const string SeekTimePerformance = "Seek Time Performance";
            public const string PowerOnHours = "Power-On Hours";
            public const string SpinRetryCount = "Spin Retry Count";
            public const string CalibrationRetryCount = "Calibration Retry Count";
            public const string PowerCycleCount = "Power Cycle Count";
            public const string ProgramFailBlockCount = "Program Fail Block Count";
            public const string EraseFailBlockCount = "Erase Fail Block Count";
            public const string UnknownAttribute = "Unknown Attribute";
            public const string UnexpectedPowerLossCount = "Unexpected Power Loss Count";
            public const string ReportedUncorrectableErrors = "Reported Uncorrectable Errors";
            public const string PoweroffRetractCount = "Power-off Retract Count";
            public const string LoadCycleCount = "Load Cycle Count";
            public const string Temperature = "Temperature";
            public const string ReallocationEventCount = "Reallocation Event Count";
            public const string CurrentPendingSectorCount = "Current Pending Sector Count";
            public const string OfflineScanUncorrectableSectorCount = "Off-line Scan Uncorrectable Sector Count";
            public const string UltraDMACRCErrorCount = "Ultra DMA CRC Error Count";
            public const string SoftReadErrorRate = "Soft Read Error Rate";
            public const string DiskShift = "Disk Shift";
            public const string LifeCurveStatus = "Life Curve Status";
            public const string AvailableReservedSpace = "Available Reserved Space";
            public const string Reserved = "Reserved";
            public const string LifetimeWritesFromHost = "Lifetime Writes From Host";
            public const string LifetimeReadsFromHost = "Lifetime Reads From Host";
        }
    }
}


J'ai volontairement créer une méthode ToString afin de pouvoir deboguer le rendu :

SmartInfos infos = new Smart.Infos();
MessageBox.Show(Convert.ToString(infos));

PS : Je me suis inspiré de ce billet pour obtenir les données de retour :
SMART

Bon codage à tous.

dimanche 7 février 2016

SSD Detector - Outil en ligne de commande

Salut à tous,

Cet outil en ligne de commande permet de savoir si un lecteur spécifié est situé sur un disque SSD. Il est également possible de lister tous les lecteurs de votre système afin de savoir s'ils sont situés sur un disque SSD.

Ce projet repose sur essentiellement 2 librairies :




Disponible ici : https://bitbucket.org/3dotdev/ssddetector


Bon codage à tous.