I've installed Arcserve Backup, but I'm having trouble seeing my tape drives. What can I do to fix this?
To address this problem, try the following:
Verify that all cards, cables, and devices are connected properly. If you installed a new card in your system before installing Arcserve Backup, verify it is seated properly in its slot. If that does not work, try putting the card in a different slot.
Ensure that your SCSI bus is terminated properly. The general rule for terminating devices chained to a SCSI bus is that there must be two sets of terminating resistors, one at the beginning of the chain and one at the end. If you only have one drive connected to your server, you have two devices on the SCSI bus - the host adapter card and the tape drive. Both the host adapter card and the tape drive should be terminated.
Verify that each SCSI device in the chain has a unique ID number. If you have two tape drives attached to the SCSI bus, each with a SCSI ID of 2, neither device will work. Set each drive to a unique SCSI ID. Check the documentation that came with your hardware for information about changing the ID of the device.
Verify that all the tape drives are turned on. If one device in a chain is not turned on, the other devices behave erratically.
Ensure that your computer's power supply is up to the task. The more cards and peripherals you add to a server, the more demands you place on the power supply.
Verify that the jumper settings on your adapter board are correct. Check the documentation that came with the board to verify the jumpers are set correctly for use with your hardware.
Replace the cables you are using with ones you know are good.