Can I connect an external DLT Tape drive to the SCSI connector on an E450

Hi... totally new to SPARC. I have inherited an E450. It appears to have the 8 bay option. I have 6 scsi disk drives installed in slots 0 through 5. Internally, there is one ultra scsi controller in slot 2 and two internal cables running from the top of the card, one for each channel. I do have an extra ultra pci scsi card, but when I plugged it into a pci slot, the system would not boot. Bottom line, can I connect an external DLT drive to either Channel A or Channel B at the rear of the Unit and not intefere with other SCSI devices (i.e. the disk drives). Currently, the DLT is set to SCSI ID 8. If this isn't recommended, how do I install the secondary ultra scsi card and have the system recognize it ? Note that the Hard drives have been wiped and I WILL be loading Solaris 10, but have not yet. I wanted to make sure all of the hardware worked first. The second PCI Scsi controller I have is an Adaptec 39160, and I'm assumming it will work IF needed. I'd prefer not to use it if necessary.... ANY HELP is sincerely appreciated ! Thanks, Randy

I suggest you leave the current internal connections just as they are.
You never know when you'll need to add more disks.
That Adaptec card is for PC's.
It won't work in a Sun SPARC-based system.
What sort of SCSI interface is required for that tape device?
Single-Ended? High Voltage Differential? Low Voltage Differential?
You need a card that matches that interface type if you hope it to "drive" the tape.
One quick way to tell, is to examine the chassis of the tape peripheral
and find the small icon that should be at the port for the SCSI cable.
For example, Sun's 375-0005 card is Single-ended and is what you already have inside your E450.
Sun's 375-0006 is a HVD card and would be correct for A1000 and D1000 arrays or L7 or L25 tape libraries.
Sun's 375-3057 card is LVD and would be appropriate for Sun's D2 array.
The manual for that 375-3057 card happens to have pictures of the SCSI icons I just mentioned.
See page 35 in that manual.
http://192.18.109.11/816-2156-11/816-2156-11.pdf
Once you confirm what's needed by the tape peripheral, we may be able to suggest how to connect it properly.

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