public static void ExtendRAID5Volume(DiskGroupDatabase database, Raid5Volume volume, long numberOfAdditionalExtentSectors) { if (numberOfAdditionalExtentSectors % volume.SectorsPerStripe > 0) { throw new ArgumentException("Number of additional sectors must be multiple of stripes per sector"); } List <DatabaseRecord> records = new List <DatabaseRecord>(); VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid); volumeRecord = (VolumeRecord)volumeRecord.Clone(); volumeRecord.SizeLBA += (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(numberOfAdditionalExtentSectors * (volume.NumberOfColumns - 1), volume.BytesPerSector); records.Add(volumeRecord); foreach (DynamicColumn column in volume.Columns) { DynamicDiskExtent lastExtent = column.Extents[column.Extents.Count - 1]; ExtentRecord extentRecord = database.FindExtentByExtentID(lastExtent.ExtentID); extentRecord = (ExtentRecord)extentRecord.Clone(); extentRecord.SizeLBA += (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(numberOfAdditionalExtentSectors, volume.BytesPerSector); records.Add(extentRecord); DiskRecord diskRecord = database.FindDiskByDiskID(extentRecord.DiskId); // we should update the disk, see Database.cs diskRecord = (DiskRecord)diskRecord.Clone(); records.Add(diskRecord); } database.UpdateDatabase(records); }
/// <summary> /// Update the database to point to the new extent location (same or different disk) /// </summary> public static void UpdateExtentLocation(DiskGroupDatabase database, DynamicVolume volume, DynamicDiskExtent relocatedExtent) { PrivateHeader privateHeader = PrivateHeader.ReadFromDisk(relocatedExtent.Disk); DiskRecord targetDiskRecord = database.FindDiskByDiskGuid(privateHeader.DiskGuid); VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid); List <DatabaseRecord> records = new List <DatabaseRecord>(); ExtentRecord sourceExtentRecord = database.FindExtentByExtentID(relocatedExtent.ExtentID); ExtentRecord relocatedExtentRecord = (ExtentRecord)sourceExtentRecord.Clone(); relocatedExtentRecord.DiskId = targetDiskRecord.DiskId; relocatedExtentRecord.DiskOffsetLBA = (ulong)PublicRegionHelper.TranslateToPublicRegionLBA(relocatedExtent.FirstSector, privateHeader); records.Add(relocatedExtentRecord); // we should update the disk records foreach (DynamicDiskExtent extent in volume.Extents) { DiskRecord diskRecord = database.FindDiskByDiskID(relocatedExtentRecord.DiskId); // there could be multiple extents on the same disk, make sure we only add each disk once if (!records.Contains(diskRecord)) { diskRecord = (DiskRecord)diskRecord.Clone(); records.Add(diskRecord); } } // when moving to a new disk, we should update the new disk record as well if (!records.Contains(targetDiskRecord)) { records.Add(targetDiskRecord.Clone()); } database.UpdateDatabase(records); }
public static void ExtendStripedVolume(DiskGroupDatabase database, StripedVolume volume, long additionalNumberOfExtentSectors) { if (additionalNumberOfExtentSectors % volume.SectorsPerStripe > 0) { throw new ArgumentException("Number of additional sectors must be multiple of stripes per sector"); } List <DatabaseRecord> records = new List <DatabaseRecord>(); VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid); volumeRecord = (VolumeRecord)volumeRecord.Clone(); volumeRecord.SizeLBA += (ulong)(additionalNumberOfExtentSectors * volume.NumberOfColumns); records.Add(volumeRecord); // we only want to extend the last extent in each column foreach (DynamicColumn column in volume.Columns) { DynamicDiskExtent lastExtent = column.Extents[column.Extents.Count - 1]; ExtentRecord extentRecord = database.FindExtentByExtentID(lastExtent.ExtentID); extentRecord = (ExtentRecord)extentRecord.Clone(); extentRecord.SizeLBA += (ulong)additionalNumberOfExtentSectors; records.Add(extentRecord); DiskRecord diskRecord = database.FindDiskByDiskID(extentRecord.DiskId); // we should update the disk, see Database.cs diskRecord = (DiskRecord)diskRecord.Clone(); records.Add(diskRecord); } database.UpdateDatabase(records); }
private static List <DynamicColumn> GetDynamicVolumeColumns(DiskGroupDatabase database, ComponentRecord componentRecord, VolumeRecord volumeRecord) { // extentRecords are sorted by offset in column List <ExtentRecord> extentRecords = database.FindExtentsByComponentID(componentRecord.ComponentId); if (componentRecord.NumberOfExtents != extentRecords.Count || extentRecords.Count == 0) { // database record is invalid throw new InvalidDataException("Number of extents in component record does not match actual number of extent records"); } SortedList <uint, List <DynamicDiskExtent> > columns = new SortedList <uint, List <DynamicDiskExtent> >(); foreach (ExtentRecord extentRecord in extentRecords) { 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); if (columns.ContainsKey(extentRecord.ColumnIndex)) { columns[extentRecord.ColumnIndex].Add(extent); } else { List <DynamicDiskExtent> list = new List <DynamicDiskExtent>(); list.Add(extent); columns.Add(extentRecord.ColumnIndex, list); } } List <DynamicColumn> result = new List <DynamicColumn>(); foreach (List <DynamicDiskExtent> extents in columns.Values) { result.Add(new DynamicColumn(extents)); } return(result); }
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"); } }
/// <summary> /// Update the database (add the new extent) /// </summary> /// <param name="volume">RAID-5 or striped volume</param> /// <returns>new extent ID</returns> public static ulong AddNewExtentToVolume(DiskGroupDatabase database, DynamicVolume volume, DiskExtent newExtent) { PrivateHeader privateHeader = PrivateHeader.ReadFromDisk(newExtent.Disk); List <DatabaseRecord> records = new List <DatabaseRecord>(); VolumeRecord volumeRecord = database.FindVolumeByVolumeGuid(volume.VolumeGuid); if (volumeRecord == null) { throw new MissingDatabaseRecordException("Volume record is missing"); } volumeRecord = (VolumeRecord)volumeRecord.Clone(); volumeRecord.SizeLBA += (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(newExtent.TotalSectors, privateHeader); records.Add(volumeRecord); ComponentRecord componentRecord = database.FindComponentsByVolumeID(volumeRecord.VolumeId)[0]; if (componentRecord == null) { throw new MissingDatabaseRecordException("Component record is missing"); } componentRecord = (ComponentRecord)componentRecord.Clone(); componentRecord.NumberOfExtents++; componentRecord.NumberOfColumns++; records.Add(componentRecord); DiskRecord diskRecord = database.FindDiskByDiskGuid(privateHeader.DiskGuid); if (diskRecord == null) { throw new MissingDatabaseRecordException("Disk record is missing"); } diskRecord = (DiskRecord)diskRecord.Clone(); records.Add(diskRecord); ExtentRecord newExtentRecord = new ExtentRecord(); newExtentRecord.Name = GetNextExtentName(database.ExtentRecords, diskRecord.Name); newExtentRecord.ComponentId = componentRecord.ComponentId; newExtentRecord.DiskId = diskRecord.DiskId; newExtentRecord.DiskOffsetLBA = (ulong)PublicRegionHelper.TranslateToPublicRegionLBA(newExtent.FirstSector, privateHeader); newExtentRecord.SizeLBA = (ulong)PublicRegionHelper.TranslateToPublicRegionSizeLBA(newExtent.TotalSectors, privateHeader); newExtentRecord.HasColumnIndexFlag = true; newExtentRecord.ColumnIndex = (uint)volume.Columns.Count; // zero based records.Add(newExtentRecord); // we should update the disk records and extent records foreach (DynamicDiskExtent extent in volume.Extents) { ExtentRecord extentRecord = database.FindExtentByExtentID(extent.ExtentID); if (extentRecord == null) { throw new MissingDatabaseRecordException("Extent record is missing"); } extentRecord = (ExtentRecord)extentRecord.Clone(); records.Add(extentRecord); diskRecord = database.FindDiskByDiskID(extentRecord.DiskId); if (diskRecord == null) { throw new MissingDatabaseRecordException("Disk record is missing"); } // there could be multiple extents on the same disk, make sure we only add each disk once if (!records.Contains(diskRecord)) { diskRecord = (DiskRecord)diskRecord.Clone(); records.Add(diskRecord); } } database.UpdateDatabase(records); return(newExtentRecord.ExtentId); }