/// <summary>
/// This stage initializes both the requester (this program) and
/// any writers on the system in preparation for a backup and sets
/// up a communcation channel between the two.
/// </summary>
void InitializeBackup()
{
// Here we are retrieving an OS-dependent object that encapsulates
// all of the VSS functionality. The OS indepdence that this single
// factory method provides is one of AlphaVSS's major strengths!
IVssFactory vss = VssFactoryProvider.Default.GetVssFactory();
// Now we create a BackupComponents object to manage the backup.
// This object will have a one-to-one relationship with its backup
// and must be cleaned up when the backup finishes (ie. it cannot
// be reused).
//
// Note that this object is a member of our class, as it needs to
// stick around for the full backup.
_backup = vss.CreateVssBackupComponents();
// Now we must initialize the components. We can either start a
// fresh backup by passing null here, or we could resume a previous
// backup operation through an earlier use of the SaveXML method.
_backup.InitializeForBackup(null);
// At this point, we're supposed to establish communication with
// the writers on the system. It is possible before this step to
// enable or disable specific writers via the BackupComponents'
// Enable* and Disable* methods.
_backup.GatherWriterMetadata();
}
static void Main(string[] args)
{
IVssFactory vssImplementation = VssFactoryProvider.Default.GetVssFactory();
using (IVssBackupComponents backup = vssImplementation.CreateVssBackupComponents())
{
backup.InitializeForBackup(null);
backup.SetContext(VssSnapshotContext.All);
foreach (VssSnapshotProperties prop in backup.QuerySnapshots())
{
Console.WriteLine("Snapshot ID: {0:B}", prop.SnapshotId);
Console.WriteLine("Snapshot Set ID: {0:B}", prop.SnapshotSetId);
Console.WriteLine("Original Volume Name: {0}", prop.OriginalVolumeName);
Console.WriteLine();
}
}
}
