Hardware Compression

Enables hardware compression on drives capable of hardware compression.


Disconnect

This option is only for SCSI devices.  This option is enabled by default, and should not be changed if your SCSI device works properly.


Sync data transfer

This option is for SCSI devices only.  This option is enabled by default for tape drives.  This option should not be changed if your SCSI device works properly.


DMA

Enables use of DMA for this drive.


Transfer Rate

This is the rate that data is written to the tape.  Change this setting if you are experiencing unrecoverable read errors or timeout errors, when backup performance is slow, or when DMA conflicts occur.


Address

Defines the address used to select the drive.


Burst Mode

This enables a faster DMA mode.  If you are experiencing DMA errors, changing this setting may fix your problem.  If this setting does not fix your DMA problem, you can also try disabling concurrent video update.


Concurrent Video

This enables concurrent screen updates while accessing the tape drive.  Some hardware configurations may cause aborted DMA transfers when DMA transfers are being performed at the same time as screen updates.

First try changing the high speed burst transfer setting before disabling this setting.


Concurrent Disk I/O

This enables concurrent access to the hard drive and tape.  Disable this if you are experiencing DMA conflicts or hardware crashes.


Parallel Port Mode

This changes the parallel port mode of operation.  Occasionally a parallel port can have problems communicating with a tape drive at the more advanced modes.  Change this setting if you are experiencing data communication failures, drive communication failures, or error correction failures.  Try changing the port delay before changing this setting.


Parallel Port Delay

This will reduce the rate which data is sent through the parallel port.  Change this setting if you are experiencing data communication failures, drive communication failures, or error correction failures.   You can also try changing the parallel port mode to fix these problems.


Current Drive Letter Assignment

Specifies which drive letter is currently assigned to this drive.


Preferred Drive Letter

Specifies which drive letter is reserved for the device.  If this drive letter is not available then the next available drive letter is selected.

NOTE: DTA (Direct Tape Access) must be installed to map a drive letter to a tape device.  For more information on DTA please visit Seagate Software’s web site at:

 www.seagatesoftware.com