Connecting both internal and external SCSI devices to the same SCSI channel on a MegaRAID SCSI controller



Document ID: 98080401

 

Posted Date: 2003-03-13

 

Last Updated: 2003-03-13

 

Distribution: View Public Website

 

Issue

When connecting SCSI devices to both the internal and external connectors on the RAID controller, you must disable termination on the SCSI channel you are connecting the external device to on the RAID controller. Failure to change this setting prior to connecting an external SCSI device may result in damage to the MegaRAID controller. Please call Toshiba technical support if this occurs.
You can call Toshiba Technical Support at 1-800-457-7777

Resolution

Disable the termination for the SCSI channel you are connecting both internal and external devices to using the following procedure.

  1. Enter the MegaRAID Configuration Utility by pressing CTRL+M when the MegaRAID Controller version is displayed.
  2. Under the Management Menu select "Objects".
  3. Under the Objects menu select "SCSI Channel".
  4. Under SCSI Channel select the appropriate SCSI Channel and set the "Termination State" to "Disable".
  5. Answer "Yes" to Change Parameter and use the "Esc" key to exit from the MegaRAID Configuration Utility and reboot the server.

COMMENTS:
After disabling termination on the SCSI channel of the MegaRAID controller you must enable termination on the external SCSI device. Consult the Users Guide for the SCSI device for instructions.
NOTE: The internal SCSI hard drives provided by Toshiba are already terminated.

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