/// <summary>
/// For all MS SQL databases it enumerate all associated paths using VSS data
/// </summary>
/// <returns>A collection of DBs and paths</returns>
public void QueryDBsInfo()
{
if (!IsMSSQLInstalled)
{
return;
}
m_DBs.Clear();
using (var vssBackupComponents = new VssBackupComponents())
{
var writerGUIDS = new [] { MSSQLWriterGuid };
try
{
vssBackupComponents.SetupWriters(writerGUIDS, null);
}
catch (Exception)
{
throw new Interface.UserInformationException("Microsoft SQL Server VSS Writer not found - cannot backup SQL databases.", "NoMsSqlVssWriter");
}
foreach (var o in vssBackupComponents.ParseWriterMetaData(writerGUIDS))
{
m_DBs.Add(new MSSQLDB(o.Name, o.LogicalPath + "\\" + o.Name, o.Paths.ConvertAll(m => m[0].ToString().ToUpperInvariant() + m.Substring(1))
.Distinct(Utility.Utility.ClientFilenameStringComparer)
.OrderBy(a => a).ToList()));
}
}
}
/// <summary>
/// Constructs a new backup snapshot, using all the required disks
/// </summary>
/// <param name="sources">Sources to determine which volumes to include in snapshot</param>
/// <param name="options">A set of commandline options</param>
public WindowsSnapshot(IEnumerable <string> sources, IDictionary <string, string> options)
{
// For Windows, ensure we don't store paths with UNC prefix
sources = sources.Select(SystemIOWindows.StripUNCPrefix);
try
{
_vssBackupComponents = new VssBackupComponents();
// Default to exclude the System State writer
var excludedWriters = new Guid[] { new Guid("{e8132975-6f93-4464-a53e-1050253ae220}") };
if (options.ContainsKey("vss-exclude-writers"))
{
excludedWriters = options["vss-exclude-writers"]
.Split(';')
.Where(x => !string.IsNullOrWhiteSpace(x) && x.Trim().Length > 0)
.Select(x => new Guid(x))
.ToArray();
}
_vssBackupComponents.SetupWriters(null, excludedWriters);
_vssBackupComponents.InitShadowVolumes(sources);
_vssBackupComponents.MapVolumesToSnapShots();
//If we should map the drives, we do that now and update the volumeMap
if (Utility.Utility.ParseBoolOption(options, "vss-use-mapping"))
{
_vssBackupComponents.MapDrives();
}
}
catch (Exception ex1)
{
Logging.Log.WriteVerboseMessage(LOGTAG, "WindowsSnapshotCreation", ex1, "Failed to initialize windows snapshot instance");
//In case we fail in the constructor, we do not want a snapshot to be active
try
{
Dispose();
}
catch (Exception ex2)
{
Logging.Log.WriteVerboseMessage(LOGTAG, "VSSCleanupOnError", ex2, "Failed during VSS error cleanup");
}
throw;
}
}
/// <summary>
/// For all Hyper-V guests it enumerate all associated paths using VSS data
/// </summary>
/// <returns>A collection of VMs and paths</returns>
private static IEnumerable <WriterMetaData> GetAllVMsPathsVSS()
{
using (var vssBackupComponents = new VssBackupComponents())
{
var writerGUIDS = new [] { HyperVWriterGuid };
try
{
vssBackupComponents.SetupWriters(writerGUIDS, null);
}
catch (Exception)
{
throw new Interface.UserInformationException("Microsoft Hyper-V VSS Writer not found - cannot backup Hyper-V machines.", "NoHyperVVssWriter");
}
foreach (var o in vssBackupComponents.ParseWriterMetaData(writerGUIDS))
{
yield return(o);
}
}
}
