我如何使用C＃读取扩展智能数据？

我知道一些C + +和Java，但我想自己学习C＃。 混乱，我试图读取我的硬盘驱动器的SMART数据。 我有这个C＃代码，但我不知道如何修改它来读取额外的内存值：它显然读取“值”值，而不是“最差”或“阈值”值。 我想将这两个数据值（最差和阈值）添加到程序中。 如何做到这一点将有助于我学习一点C＃。

C＃示例：（我想要使用的）

// (c) Microsoft Corporation // Author: Clemens Vasters ([email protected]) // Code subject to MS-PL: http://opensource.org/licenses/ms-pl.html // SMART Attributes and Background: http://en.wikipedia.org/wiki/SMART // SMART Attributes Overview: http://www.t13.org/Documents/UploadedDocuments/docs2005/e05171r0-ACS-SMARTAttributes_Overview.pdf namespace SmartDataApp { using System; using System.Collections.Generic; using System.Management; using System.Runtime.InteropServices; public enum SmartAttributeType : byte { ReadErrorRate = 0x01,ThroughputPerformance = 0x02,SpinUpTime = 0x03,StartStopCount = 0x04,ReallocatedSectorsCount = 0x05,ReadChannelMargin = 0x06,SeekErrorRate = 0x07,SeekTimePerformance = 0x08,PowerOnHoursPOH = 0x09,SpinRetryCount = 0x0A,CalibrationRetryCount = 0x0B,PowerCycleCount = 0x0C,SoftReadErrorRate = 0x0D,SATADownshiftErrorCount = 0xB7,EndtoEnderror = 0xB8,HeadStability = 0xB9,InducedOpVibrationDetection = 0xBA,ReportedUncorrectableErrors = 0xBB,CommandTimeout = 0xBC,HighFlyWrites = 0xBD,AirflowTemperatureWDC = 0xBE,TemperatureDifferencefrom100 = 0xBE,GSenseErrorRate = 0xBF,PoweroffRetractCount = 0xC0,LoadCycleCount = 0xC1,Temperature = 0xC2,HardwareECCRecovered = 0xC3,ReallocationEventCount = 0xC4,CurrentPendingSectorCount = 0xC5,UncorrectableSectorCount = 0xC6,UlTradMACRCErrorCount = 0xC7,MultiZoneErrorRate = 0xC8,WriteErrorRateFujitsu = 0xC8,OffTrackSoftReadErrorRate = 0xC9,DataAddressMarkerrors = 0xCA,RunOutCancel = 0xCB,SoftECCCorrection = 0xCC,ThermalAsperityRateTAR = 0xCD,FlyingHeight = 0xCE,SpinHighCurrent = 0xCF,SpinBuzz = 0xD0,OfflineseekPerformance = 0xD1,VibrationDuringWrite = 0xD3,ShockDuringWrite = 0xD4,diskShift = 0xDC,GSenseErrorRatealt = 0xDD,LoadedHours = 0xDE,LoadUnloadRetryCount = 0xDF,LoadFriction = 0xE0,LoadUnloadCycleCount = 0xE1,LoadInTime = 0xE2,TorqueAmplificationCount = 0xE3,PowerOffRetractCycle = 0xE4,GMRHeadamplitude = 0xE6,DriveTemperature = 0xE7,HeadFlyingHours = 0xF0,TransferErrorRateFujitsu = 0xF0,TotalLBAsWritten = 0xF1,TotalLBAsRead = 0xF2,ReadErrorRetryRate = 0xFA,FreeFallProtection = 0xFE,} public class SmartData { readonly Dictionary<SmartAttributeType,SmartAttribute> attributes; readonly ushort structureversion; public SmartData(byte[] arrvendorSpecific) { attributes = new Dictionary<SmartAttributeType,SmartAttribute>(); for (int offset = 2; offset < arrvendorSpecific.Length; ) { var a = FromBytes<SmartAttribute>(arrvendorSpecific,ref offset,12); // Attribute values 0x00,0xfe,0xff are invalid if (a.AttributeType != 0x00 && (byte)a.AttributeType != 0xfe && (byte)a.AttributeType != 0xff) { attributes[a.AttributeType] = a; } } structureversion = (ushort)(arrvendorSpecific[0] * 256 + arrvendorSpecific[1]); } public ushort Structureversion { get { return this.structureversion; } } public SmartAttribute this[SmartAttributeType v] { get { return this.attributes[v]; } } public IEnumerable<SmartAttribute> Attributes { get { return this.attributes.Values; } } static T FromBytes<T>(byte[] bytearray,ref int offset,int count) { IntPtr ptr = IntPtr.Zero; try { ptr = Marshal.AllocHGlobal(count); Marshal.copy(bytearray,offset,ptr,count); offset += count; return (T)Marshal.PtrToStructure(ptr,typeof(T)); } finally { if (ptr != IntPtr.Zero) { Marshal.FreeHGlobal(ptr); } } } } [StructLayout(LayoutKind.Sequential)] public struct SmartAttribute { public SmartAttributeType AttributeType; public ushort Flags; public byte Value; [MarshalAs(UnmanagedType.ByValArray,SizeConst = 8)] public byte[] vendorData; public bool Advisory { get { return (Flags & 0x1) == 0x0; // Bit 0 unset? } } public bool FailureImminent { get { return (Flags & 0x1) == 0x1; // Bit 0 set? } } public bool OnlineDataCollection { get { return (Flags & 0x2) == 0x2; // Bit 0 set? } } } public class Program { public static void Main() { try { var searcher = new ManagementObjectSearcher("root\WMI","SELECT * FROM MsstorageDriver_ATAPISmartData"); foreach (ManagementObject queryObj in searcher.Get()) { Console.WriteLine("-----------------------------------"); Console.WriteLine("MsstorageDriver_ATAPISmartData instance"); Console.WriteLine("-----------------------------------"); var arrvendorSpecific = (byte[])queryObj.GetPropertyValue("vendorSpecific"); // Create SMART data from 'vendor specific' array var d = new SmartData(arrvendorSpecific); foreach (var b in d.Attributes) { Console.Write("{0} :{1} : ",b.AttributeType,b.Value); foreach (byte vendorByte in b.vendorData) { Console.Write("{0:x} ",vendorByte); } Console.WriteLine(); } } } catch (ManagementException e) { Console.WriteLine("An error occurred while querying for WMI data: " + e.Message); } } }

}

最大的问题是弄清楚它是什么意思，因为它确实是“供应商特定的”。 数据被组织成12字节的属性数据块。 数组的第一个字节给出了属性块的数量。 每个属性块的格式为：

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请注意，并非所有SMART HDD信息都可以从单个WMI查询中获取。

您需要查询以下所有内容以确定当前值，最差值，阈值，驱动器状态和属性状态：

Win32_diskDrive MsstorageDriver_FailurePredictStatus MsstorageDriver_FailurePredictData MsstorageDriver_FailurePredictThresholds

有关C＃/ WMI全面解决方案的详细信息，请参阅此解决方案http://www.kNow24.net/blog/C+WMI+HDD+SMART+@R_230_404[email protected] （请注意：我拥有此开发博客）