Async negotiation (Was: 2.0.36/5.1.4 and BIOS settings)
mikebw at bilow.bilow.uu.ids.net
Wed Dec 9 17:22:12 PST 1998
Dirk Lutzebaeck wrote in a message to Mike Bilow:
> My drive says (/proc/scsi/scsi)
> Host: scsi1 Channel: 00 Id: 06 Lun: 00
> Vendor: ARCHIVE Model: Python 04106-XXX Rev: 715G
> Type: Sequential-Access ANSI SCSI revision: 02
> which I would interpret to be Scorpion as far as the above document is
> concerned, since the revision number is 715G.
DL> cat /proc/scsi/scsi says:
DL> Host: scsi0 Channel: 00 Id: 06 Lun: 00
DL> Vendor: SEAGATE Model: DAT 02779-XXX Rev: 658A
DL> Type: Sequential-Access ANSI SCSI
DL> revision: 02
DL> (switching the DIP switch it says: ARCHIVE)
DL> Now, your Rev no. seems much higher. How can I flash the
DL> EEPROM in the DAT? I asked Seagate about this but haven't
DL> any answer yet.
You cannot compare firmware revision numbers between different products: a
higher number revision on one product could be older than a lower number
revision on another product.
Some of these drives use One-Time Programmable (OTP) chips to store their
firmware, and these chips are soldered onto the board; such drives cannot be
upgraded. Other drives use socketed conventional EPROM chips which are clearly
visible through a rectangular cutout on top of the drive assembly. There are
also a few drives which use Flash EEPROM chips which can be updated either
through a proprietary serial data connector on the circuit board or by using a
special tape written in a proprietary format.
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