9.4 How can I get an Exabyte to work on an HP?

People have under HP-UX 8.07 used device files with major number 54,
minor numbers 0x201202 and 0x201203 for /dev/rmt/2m and /dev/rmt/2mn,
respectively, for low density. Other people had used 0x201242 and 0x201243.

Note that with HP-UX 9.01, low density means 8200 format in 8500 drives.
Major #54, minor numbers 0x201202 and 0x201203 are low density handles.
With 8200 drives the density does not matter. Software compression
control with 8505 drives will require a patch to HP-UX 9.01.

Caveats: some Exabyte drives will not support a "dump" blocking factor
greater than 64 from the HP.  Others are apparently limited in the commands
they will accept (e.g. TTI noted that their 8501 tape drive will not properly
interface with the HP under all conditions; however, the TTI 8510 does
interface correctly). TTI had a firmware problem which should be
corrected in recent 8510s.

Note that 8500 drives act as SCSI-2, while 8200s are SCSI-1. People appear
to have been more successful with getting the 8500s to work with 9.01.

Experience has also shown that you may need PHKL_2898. People have
also reported that you need patch PHKL_2838 for HP_UX 9.x to get
compression to work.

(Thanks to Mike Peterson for much of this.)

According to jerryk@Exabyte.COM
     just letting you know we are working on drivers for s800 systems for
     exabyte products (tape and changers) for hpux 9 and 10. When they are
     fully tested we will make them available on our web site.