public static MountedDiskInfo GetMountedDiskInfo(string serverName, int driveNumber)
{
MountedDiskInfo diskInfo = new MountedDiskInfo {
DiskNumber = driveNumber
};
// find mounted disk using VDS
AdvancedDisk advancedDisk = null;
Pack diskPack = null;
// first attempt
Thread.Sleep(3000);
HostedSolutionLog.LogInfo("Trying to find mounted disk - first attempt");
FindVdsDisk(serverName, diskInfo.DiskNumber, out advancedDisk, out diskPack);
// second attempt
if (advancedDisk == null)
{
Thread.Sleep(20000);
HostedSolutionLog.LogInfo("Trying to find mounted disk - second attempt");
FindVdsDisk(serverName, diskInfo.DiskNumber, out advancedDisk, out diskPack);
}
if (advancedDisk == null)
{
throw new Exception("Could not find mounted disk");
}
// Set disk address
diskInfo.DiskAddress = advancedDisk.DiskAddress;
var addressParts = diskInfo.DiskAddress.ParseExact("Port{0}Path{1}Target{2}Lun{3}");
var portNumber = addressParts[0];
var targetId = addressParts[2];
var lun = addressParts[3];
// check if DiskPart must be used to bring disk online and clear read-only flag
bool useDiskPartToClearReadOnly = false;
if (ConfigurationManager.AppSettings[Constants.CONFIG_USE_DISKPART_TO_CLEAR_READONLY_FLAG] != null)
{
useDiskPartToClearReadOnly = Boolean.Parse(ConfigurationManager.AppSettings[Constants.CONFIG_USE_DISKPART_TO_CLEAR_READONLY_FLAG]);
}
// determine disk index for DiskPart
Wmi cimv2 = new Wmi(serverName, Constants.WMI_CIMV2_NAMESPACE);
ManagementObject objDisk = cimv2.GetWmiObject("win32_diskdrive",
"Model='Msft Virtual Disk SCSI Disk Device' and ScsiTargetID={0} and ScsiLogicalUnit={1} and scsiPort={2}",
targetId, lun, portNumber);
if (useDiskPartToClearReadOnly)
{
// *** Clear Read-Only and bring disk online with DiskPart ***
HostedSolutionLog.LogInfo("Clearing disk Read-only flag and bringing disk online");
if (objDisk != null)
{
// disk found
// run DiskPart
string diskPartResult = RunDiskPart(serverName, String.Format(@"select disk {0}
attributes disk clear readonly
online disk
exit", Convert.ToInt32(objDisk["Index"])));
HostedSolutionLog.LogInfo("DiskPart Result: " + diskPartResult);
}
}
else
{
// *** Clear Read-Only and bring disk online with VDS ***
// clear Read-Only
if ((advancedDisk.Flags & DiskFlags.ReadOnly) == DiskFlags.ReadOnly)
{
HostedSolutionLog.LogInfo("Clearing disk Read-only flag");
advancedDisk.ClearFlags(DiskFlags.ReadOnly);
while ((advancedDisk.Flags & DiskFlags.ReadOnly) == DiskFlags.ReadOnly)
{
Thread.Sleep(100);
advancedDisk.Refresh();
}
}
// bring disk ONLINE
if (advancedDisk.Status == DiskStatus.Offline)
{
HostedSolutionLog.LogInfo("Bringing disk online");
advancedDisk.Online();
while (advancedDisk.Status == DiskStatus.Offline)
{
Thread.Sleep(100);
advancedDisk.Refresh();
}
}
}
// small pause after getting disk online
Thread.Sleep(3000);
// get disk again
FindVdsDisk(serverName, diskInfo.DiskNumber, out advancedDisk, out diskPack);
// find volumes using VDS
List <string> volumes = new List <string>();
HostedSolutionLog.LogInfo("Querying disk volumes with VDS");
foreach (Volume volume in diskPack.Volumes)
{
string letter = volume.DriveLetter.ToString();
if (letter != "")
{
volumes.Add(letter);
}
}
// find volumes using WMI
if (volumes.Count == 0 && objDisk != null)
{
HostedSolutionLog.LogInfo("Querying disk volumes with WMI");
foreach (ManagementObject objPartition in objDisk.GetRelated("Win32_DiskPartition"))
{
foreach (ManagementObject objVolume in objPartition.GetRelated("Win32_LogicalDisk"))
{
volumes.Add(objVolume["Name"].ToString().TrimEnd(':'));
}
}
}
HostedSolutionLog.LogInfo("Volumes found: " + volumes.Count);
// Set volumes
diskInfo.DiskVolumes = volumes.ToArray();
return(diskInfo);
}
