public static bool IsVolumeRetained(SimpleVolume volume, out bool isBootVolume)
{
isBootVolume = false;
DynamicDisk disk = DynamicDisk.ReadFromDisk(volume.Disk);
long bootPartitionStartLBA;
List <ExtentRecord> retained = GetRetainedExtentsOnDisk(disk, out bootPartitionStartLBA);
foreach (ExtentRecord record in retained)
{
if (record.ExtentId == volume.DiskExtent.ExtentID)
{
if ((long)(disk.PrivateHeader.PublicRegionStartLBA + record.DiskOffsetLBA) == bootPartitionStartLBA)
{
isBootVolume = true;
}
return(true);
}
}
return(false);
}
public static void ExtendSimpleVolume(DiskGroupDatabase database, SimpleVolume volume, long numberOfAdditionalSectors)
{
VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid);
volumeRecord = (VolumeRecord)volumeRecord.Clone();
volumeRecord.SizeLBA += (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(numberOfAdditionalSectors, volume.BytesPerSector);
ExtentRecord extentRecord = database.FindExtentByExtentID(volume.DiskExtent.ExtentID);
extentRecord = (ExtentRecord)extentRecord.Clone();
extentRecord.SizeLBA += (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(numberOfAdditionalSectors, volume.BytesPerSector);
DiskRecord diskRecord = database.FindDiskByDiskID(extentRecord.DiskId); // we should update the disk, see Database.cs
diskRecord = (DiskRecord)diskRecord.Clone();
List <DatabaseRecord> records = new List <DatabaseRecord>();
records.Add(volumeRecord);
records.Add(extentRecord);
records.Add(diskRecord);
database.UpdateDatabase(records);
}
public static void ExtendSimpleVolume(DiskGroupDatabase database, SimpleVolume volume, long additionalNumberOfSectors)
{
VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid);
volumeRecord = (VolumeRecord)volumeRecord.Clone();
volumeRecord.SizeLBA += (ulong)additionalNumberOfSectors;
ExtentRecord extentRecord = database.FindExtentByExtentID(volume.DiskExtent.ExtentID);
extentRecord = (ExtentRecord)extentRecord.Clone();
extentRecord.SizeLBA += (ulong)additionalNumberOfSectors;
DiskRecord diskRecord = database.FindDiskByDiskID(extentRecord.DiskId); // we should update the disk, see Database.cs
diskRecord = (DiskRecord)diskRecord.Clone();
List <DatabaseRecord> records = new List <DatabaseRecord>();
records.Add(volumeRecord);
records.Add(extentRecord);
records.Add(diskRecord);
database.UpdateDatabase(records);
}
private static SimpleVolume GetSimpleVolume(DiskGroupDatabase database, ComponentRecord componentRecord, VolumeRecord volumeRecord)
{
List <ExtentRecord> extentRecords = database.FindExtentsByComponentID(componentRecord.ComponentId);
if (extentRecords.Count == 1)
{
ExtentRecord extentRecord = extentRecords[0];
DiskRecord diskRecord = database.FindDiskByDiskID(extentRecord.DiskId);
DynamicDisk disk = DynamicDiskHelper.FindDisk(database.Disks, diskRecord.DiskGuid); // we add nulls as well
DynamicDiskExtent extent = DynamicDiskExtentHelper.GetDiskExtent(disk, extentRecord);
SimpleVolume volume = new SimpleVolume(extent, volumeRecord.VolumeGuid, database.DiskGroupGuid);
volume.VolumeID = volumeRecord.VolumeId;
volume.Name = volumeRecord.Name;
volume.DiskGroupName = database.DiskGroupName;
return(volume);
}
else
{
// component / extent records are invalid
throw new InvalidDataException("Number of extents in component record does not match actual number of extent records");
}
}
