/// <summary>
/// Adds the specified string collection of file exclusions.</summary>
/// <param name="writeToDb">If true, the object will be written to the Database.</param>
public async Task <LogicalVolume> AddLogicalVolume(LogicalVolume volume, bool writeToDb)
{
if (LogicalVolumes.Contains(volume))
{
return(LogicalVolumes.First(x => x.Equals(volume)));
}
LogicalVolumes.Add(volume);
if (writeToDb)
{
await Database.InsertLogicalVolumeAsync(volume);
}
return(volume);
}
private bool LogicalVolumeLayout()
{
var upSizeLock = new Dictionary <string, long>();
//Try to resize lv to fit inside newly created lvm
foreach (var volumeGroup in VolumeGroupHelpers)
{
//Tell the volume group it has a size of the physical volume to work with * 99% to account for errors to allow alittle over
//volumeGroup.AgreedPvSizeBlk = Convert.ToInt64(volumeGroup.AgreedPvSizeBlk * .99);
foreach (var partition in _imageSchema.HardDrives[HdNumberToGet].Partitions)
{
//Find the partition this volume group belongs to
if (_imageSchema.HardDrives[HdNumberToGet].Name + partition.Prefix + partition.Number !=
volumeGroup.Pv)
{
continue;
}
var singleLvVerified = false;
var percentCounter = -.1;
while (!singleLvVerified)
{
percentCounter += .1;
double totalPvPercentage = 0;
LogicalVolumes.Clear();
if (!partition.Active)
{
continue;
}
var isError = false;
foreach (var lv in partition.VolumeGroup.LogicalVolumes)
{
if (!lv.Active)
{
continue;
}
var clientPartitionLv = new ClientLogicalVolume
{
Name = lv.Name,
Vg = lv.VolumeGroup,
Uuid = lv.Uuid,
VgUuid = volumeGroup.Uuid,
FsType = lv.FsType
};
var logicalVolumeHelper = new ServiceClientPartition(_imageProfile).LogicalVolume(lv, LbsByte,
_newHdSize, HdNumberToGet);
var percentOfPvForThisLv = (double)logicalVolumeHelper.MinSizeBlk /
volumeGroup.AgreedPvSizeBlk;
var tmpClientPartitionSizeLvBlk = logicalVolumeHelper.MinSizeBlk;
if (volumeGroup.IsFusion)
{
clientPartitionLv.Size = 0;
LogicalVolumes.Add(clientPartitionLv);
singleLvVerified = true;
continue;
}
if (upSizeLock.ContainsKey(lv.Name))
{
tmpClientPartitionSizeLvBlk = upSizeLock[lv.Name];
}
else
{
if (logicalVolumeHelper.IsDynamicSize)
{
clientPartitionLv.SizeIsDynamic = true;
var percentOfOrigDrive = Convert.ToInt64(lv.Size) /
(double)
Convert.ToInt64(
_imageSchema.HardDrives[HdNumberToGet].Size);
if (Convert.ToInt64(NewHdBlk * percentOfOrigDrive) < logicalVolumeHelper.MinSizeBlk)
{
//This will never work because each loop only gets smaller
tmpClientPartitionSizeLvBlk =
Convert.ToInt64(NewHdBlk * (percentOfOrigDrive + percentCounter / 100));
if (logicalVolumeHelper.MinSizeBlk < tmpClientPartitionSizeLvBlk)
{
upSizeLock.Add(lv.Name, tmpClientPartitionSizeLvBlk);
}
}
else
{
if (percentOfOrigDrive - percentCounter / 100 <= 0)
{
tmpClientPartitionSizeLvBlk =
Convert.ToInt64(NewHdBlk * percentOfOrigDrive);
}
else
{
tmpClientPartitionSizeLvBlk =
Convert.ToInt64(NewHdBlk *
(percentOfOrigDrive - percentCounter / 100));
}
}
percentOfPvForThisLv = (double)tmpClientPartitionSizeLvBlk /
volumeGroup.AgreedPvSizeBlk;
}
}
if (logicalVolumeHelper.MinSizeBlk > tmpClientPartitionSizeLvBlk)
{
isError = true;
break;
}
clientPartitionLv.Size = tmpClientPartitionSizeLvBlk;
totalPvPercentage += percentOfPvForThisLv;
LogicalVolumes.Add(clientPartitionLv);
}
//Could not determine a partition layout that works with this hard drive
if (isError && percentCounter > 99)
{
return(false);
}
//This partition size doesn't work, continuation of break from earlier
if (isError)
{
continue;
}
if (totalPvPercentage <= 1)
{
long totalAllocatedBlk = 0;
var dynamicPartitionCount = 0;
//If totalPercentage is too far below 1 try to increase size of available resizable partitions
if (totalPvPercentage < .95)
{
foreach (var lv in LogicalVolumes)
{
totalAllocatedBlk += Convert.ToInt64(lv.Size);
if (lv.SizeIsDynamic)
{
dynamicPartitionCount++;
}
}
var totalUnallocated = volumeGroup.AgreedPvSizeBlk - totalAllocatedBlk;
if (dynamicPartitionCount > 0)
{
foreach (var lv in LogicalVolumes.Where(lv => lv.SizeIsDynamic))
{
lv.Size = lv.Size + totalUnallocated / dynamicPartitionCount;
}
}
}
singleLvVerified = true;
}
//Theoretically should never hit this, but added to prevent infinite loop
if (percentCounter > 100)
{
return(false);
}
}
}
}
return(true);
}
