public static bool IsDynamicDisk(Disk disk)
{
MasterBootRecord mbr = MasterBootRecord.ReadFromDisk(disk);
if (mbr != null)
{
if (mbr.PartitionTable[0].PartitionType == (byte)PartitionTypeName.DynamicData)
{
return(true);
}
else if (mbr.IsGPTBasedDisk)
{
List <GuidPartitionEntry> entries = GuidPartitionTable.ReadEntriesFromDisk(disk);
if (entries != null)
{
if (GuidPartitionEntryCollection.ContainsPartitionTypeGuid(entries, GPTPartition.PrivateRegionPartitionTypeGuid) &&
GuidPartitionEntryCollection.ContainsPartitionTypeGuid(entries, GPTPartition.PublicRegionPartitionTypeGuid))
{
return(true);
}
}
}
return(false);
}
else
{
// if the disk has no master boot record, it can be a dynamic disk if it has a valid PrivateHeader at sector 6
PrivateHeader privateHeader = PrivateHeader.ReadFromDiskStart(disk);
return(privateHeader != null);
}
}
public static PrivateHeader ReadFromGPTBasedDisk(Disk disk)
{
List <GuidPartitionEntry> entries = GuidPartitionTable.ReadEntriesFromDisk(disk);
int index = GuidPartitionEntryCollection.GetIndexOfPartitionTypeGuid(entries, GPTPartition.PrivateRegionPartitionTypeGuid);
// the private header will be located at the last sector of the private region
PrivateHeader privateHeader = PrivateHeader.ReadFromDisk(disk, (long)entries[index].LastLBA, true);
if (privateHeader != null)
{
if (privateHeader.IsChecksumValid)
{
return(privateHeader);
}
else
{
// primary has invalid checksum, try secondary private header
long sectorIndex = (long)(privateHeader.PrivateRegionStartLBA + privateHeader.SecondaryPrivateHeaderLBA);
return(ReadFromDisk(disk, sectorIndex, false));
}
}
return(null);
}
