rp4440 scsi hookup

[gsb_2]

On a rp4440, I have my DDS3 tape drive hooked up to the external connector A on the Scsi card. I have the card in simplex mode so the tape drive is on the same channel as both root mirrored disks. Is this slowing the scsi bus down and if I move it to channel B do I need a terminator on channel A?

[Craig A. Sharp]

The bus should run at the speed of the slowest device on the chain (DDS3).

Although you really dont need the terminator, you should always terminate the bus.

[gsb_2]

I thought some HP scsi cards were self terminating. I don't know if this one (A6829A) is or not. So I should shut the system down and move the tape drive. Yes or No.

[Sameer_Nirmal · Accepted solution]

Hi GSB,

Yes, current connection does slow down the SCSI channel throughtput and limit to DDS3 device speed.It is better to put the DDS3 drive on separate SCSI Channel B in your case.

A6829A has auto termination enable/disable jumper for both channels A & B. If it is enabled for channel A, then you won't need terminator.
Refer this link as well
http://docs.hp.com/en/A6829-96002/ch01s01.html

[gsb_2]

I will move the tape. Thanks for the help