Is DAT 24e a LVD SCSI device?

[Miguel Cuesta]

Hello.

I've got several problems to perform any backup with my HP SureStore DAT24 (external, SCSI) connected to my X4000 PC.

Reading X4000 specifications, it's got a 68-pin connector for external LVD SCSI devices.

Reading DAT24e specifications, it's got a Ultra 2 SCSI connector.

Are DAT24e and X4000 compatibles? Is DAT24e a LVD SCSI device?

Thank you very muc.

P.S. This thread has been moved from General to Tape Libraries and Drives. - Hp Forum Moderator

[David Ruska]

> Is DAT24e a LVD SCSI device?

A DAT24e is a single-ended, fast narrow device. (A DAT40 is LVDS).

In theory you can hook a single-ended device to an LVDS bus, with a SE or autosensing terminator. You will also have to convert from 68pins to 50pins.

Note however, the recommended HBA is a single-ended card.

Here's the install manual:
http://h200002.www2.hp.com/bc/docs/support/SupportManual/lpg28876/lpg28876.pdf

[Miguel Cuesta]

Thank you very much for your answer.

I've got a lot of problems to communicate X4000 with DAT24e through SCSI.

So, the solutions you suggest are:
+) Placing an autosensing terminator on DAT24e, or
+) Connecting the DAT24e to a Single Ended card, or
+) Connecting X4000 to a DAT40e

Am I right?

Regards.

[David Ruska]

> So, the solutions you suggest are:
> +) Placing an autosensing terminator on DAT24e, or
> +) Connecting the DAT24e to a Single Ended card, or
> +) Connecting X4000 to a DAT40e

From easiest to hardest:

1) Use a narrow SE card. If it has an HD connector, you will need an HD50 to LD50 cable. Use an LD50 SE active terminator.

2) If you have an unused external 68pin LVD adapter, then get a 68pin HD to 50pn LD cable. Again, use an LD50 SE active terminator.

The LVD card will switch to SE mode automatically.

The auto-sensing terminators are typically only 68pin HD.

If the card has a BIOS, you should see the device ID when you boot.