/// <inheritdoc/>
public override async Task ObserveAsync(CancellationToken token)
{
this.SetErrorWarningThresholds();
DriveInfo[] allDrives = DriveInfo.GetDrives();
var diskUsage = new DiskUsage();
this.diskInfo = new StringBuilder();
try
{
int readyCount = 0;
foreach (var d in allDrives)
{
token.ThrowIfCancellationRequested();
if (d.IsReady)
{
readyCount++;
// This section only needs to run if you have the FabricObserverWebApi app installed...
// Always log since these are the identifiers of each detected drive...
this.diskInfo.AppendFormat("\n\nDrive Name: {0}\n", d.Name);
// Logging...
this.diskInfo.AppendFormat("Drive Type: {0}\n", d.DriveType);
this.diskInfo.AppendFormat(" Volume Label : {0}\n", d.VolumeLabel);
this.diskInfo.AppendFormat(" Filesystem : {0}\n", d.DriveFormat);
this.diskInfo.AppendFormat(" Total Disk Size: {0} GB\n", d.TotalSize / 1024 / 1024 / 1024);
this.diskInfo.AppendFormat(" Root Directory : {0}\n", d.RootDirectory);
this.diskInfo.AppendFormat(" Free User : {0} GB\n", d.AvailableFreeSpace / 1024 / 1024 / 1024);
this.diskInfo.AppendFormat(" Free Total: {0} GB\n", d.TotalFreeSpace / 1024 / 1024 / 1024);
this.diskInfo.AppendFormat(" % Used : {0}%\n", diskUsage.GetCurrentDiskSpaceUsedPercent(d.Name));
// Setup monitoring data structures...
string id = d.Name.Substring(0, 1);
// Since these live across iterations, do not duplicate them in the containing list...
if (!this.diskIOReadsData.Any(data => data.Id == id))
{
this.diskIOReadsData.Add(new FabricResourceUsageData <float>("Disk sec/Read (ms)", id));
}
if (!this.diskIOWritesData.Any(data => data.Id == id))
{
this.diskIOWritesData.Add(new FabricResourceUsageData <float>("Disk sec/Write (ms)", id));
}
// Disk space %...
if (!this.diskSpacePercentageUsageData.Any(data => data.Id == id))
{
this.diskSpacePercentageUsageData.Add(new FabricResourceUsageData <double>("Disk Space Consumption %", id));
}
if (!this.diskSpaceUsageData.Any(data => data.Id == id))
{
this.diskSpaceUsageData.Add(new FabricResourceUsageData <double>("Disk Space Consumption MB", id));
}
if (!this.diskSpaceAvailableData.Any(data => data.Id == id))
{
this.diskSpaceAvailableData.Add(new FabricResourceUsageData <double>("Disk Space Available MB", id));
}
if (!this.diskSpaceTotalData.Any(data => data.Id == id))
{
this.diskSpaceTotalData.Add(new FabricResourceUsageData <double>("Disk Space Total MB", id));
}
// Current disk queue length...
if (!this.diskAverageQueueLengthData.Any(data => data.Id == id))
{
this.diskAverageQueueLengthData.Add(new FabricResourceUsageData <float>("Average Disk Queue Length", id));
}
// Generate data over time (_monitorDuration...) for use in ReportAsync health analysis...
this.stopWatch?.Start();
while (this.stopWatch?.Elapsed <= this.monitorDuration)
{
token.ThrowIfCancellationRequested();
this.diskIOReadsData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.PerfCounterGetDiskIOInfo(d.Name.Substring(0, 2), "LogicalDisk", "Avg. Disk sec/Read") * 1000);
this.diskIOWritesData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.PerfCounterGetDiskIOInfo(d.Name.Substring(0, 2), "LogicalDisk", "Avg. Disk sec/Write") * 1000);
this.diskSpacePercentageUsageData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.GetCurrentDiskSpaceUsedPercent(id));
this.diskSpaceUsageData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.GetUsedDiskSpace(id, SizeUnit.Megabytes));
this.diskSpaceAvailableData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.GetAvailabeDiskSpace(id, SizeUnit.Megabytes));
this.diskSpaceTotalData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.GetTotalDiskSpace(id, SizeUnit.Megabytes));
this.diskAverageQueueLengthData.FirstOrDefault(
x => x.Id == id)
.Data.Add(diskUsage.GetAverageDiskQueueLength(d.Name.Substring(0, 2)));
Thread.Sleep(250);
}
// This section only needs to run if you have the FabricObserverWebApi app installed...
this.diskInfo.AppendFormat(
"{0}",
this.GetWindowsPerfCounterDetailsText(
this.diskIOReadsData.FirstOrDefault(
x => x.Id == d.Name.Substring(0, 1)).Data,
"Avg. Disk sec/Read"));
this.diskInfo.AppendFormat(
"{0}",
this.GetWindowsPerfCounterDetailsText(
this.diskIOWritesData.FirstOrDefault(
x => x.Id == d.Name.Substring(0, 1)).Data,
"Avg. Disk sec/Write"));
this.diskInfo.AppendFormat(
"{0}",
this.GetWindowsPerfCounterDetailsText(
this.diskAverageQueueLengthData.FirstOrDefault(
x => x.Id == d.Name.Substring(0, 1)).Data,
"Avg. Disk Queue Length"));
this.stopWatch.Stop();
this.stopWatch.Reset();
}
}
}
finally
{
diskUsage.Dispose();
diskUsage = null;
}
await this.ReportAsync(token).ConfigureAwait(true);
this.LastRunDateTime = DateTime.Now;
}