From SQL 2012 BOL...
Data Transfer Options
The options enable you to optimize data transfer from the backup device.
BUFFERCOUNT = { buffercount | @buffercount_variable }
Supported by: RESTORE
Specifies the total number of I/O buffers to be used for the restore operation. You can specify any positive integer; however, large numbers of buffers might cause "out of memory" errors because of inadequate virtual address space in the Sqlservr.exe process.
The total space used by the buffers is determined by: buffercount*maxtransfersize.
MAXTRANSFERSIZE = { maxtransfersize | @maxtransfersize_variable }
Supported by: RESTORE
Specifies the largest unit of transfer in bytes to be used between the backup media and SQL Server. The possible values are multiples of 65536 bytes (64 KB) ranging up to 4194304 bytes (4 MB).
Key point is that SQL Server supports a value up to 4194304 bytes form MaxTransferSize whereas SQLBackup limits this value to 1048576 bytes. It also doesn't have an option for buffercount.
The reason I ask is that I am trying to reduce the restore time of the REDO phase of a highly active transaction log. I have read that increasing these values can help that.
Data Transfer Options
The options enable you to optimize data transfer from the backup device.
BUFFERCOUNT = { buffercount | @buffercount_variable }
Supported by: RESTORE
Specifies the total number of I/O buffers to be used for the restore operation. You can specify any positive integer; however, large numbers of buffers might cause "out of memory" errors because of inadequate virtual address space in the Sqlservr.exe process.
The total space used by the buffers is determined by: buffercount*maxtransfersize.
MAXTRANSFERSIZE = { maxtransfersize | @maxtransfersize_variable }
Supported by: RESTORE
Specifies the largest unit of transfer in bytes to be used between the backup media and SQL Server. The possible values are multiples of 65536 bytes (64 KB) ranging up to 4194304 bytes (4 MB).
Key point is that SQL Server supports a value up to 4194304 bytes form MaxTransferSize whereas SQLBackup limits this value to 1048576 bytes. It also doesn't have an option for buffercount.
The reason I ask is that I am trying to reduce the restore time of the REDO phase of a highly active transaction log. I have read that increasing these values can help that.