Well, it turns out that Exabyte themselves came through!
I called their customer service center at 913.492.6002 and told them what 
I wanted to do.  They sent me a 19-page FAX detailing everything I ever 
wanted to know about connecting *any* exabyte tape product to Solaris 1.X 
and Solaris 2.X.
Anyhow, with SunOS 4.1.3[_U1], for an EXB-4200 and 4200c, the entries that
you make in /sys/scsi/targets/st_conf.c are: 
/* Exabyte 4mm 2GB cartridge */
{
  "Exabyte EXB-4200 4mm Helical Scan", 16, "EXABYTE EXB-4200",
  ST_TYPE_DEFAULT, 1024,
  (ST_VARIABLE | ST_BSF | ST_BSR),
  5000, 5000,
  {  0, 0, 0, 0 },
  {  0, 0, 0, 0 }
},
/* Exabyte 4mm 4GB w/compression cartridge */
{
  "Exabyte EXB4200c 4mm Helical Scan", 17, "EXABYTE EXB-4200c",
  ST_TYPE_DEFAULT, 1024,
  (ST_VARIABLE | ST_BSF | ST_BSR),
  5000, 5000,
  {  0x63, 0x43, 0x0c, 0x0c },
  {  0, 0, 0, 0 }
},
A previous summary listed the steps to add this drive to a Solaris 2.X
machine; Exabyte's information differs from that in the summary.  FYI, the
additions (as given by Exabyte) are: 
tape-config-list =
  "EXABYTE EXB-4200", "Exabyte 4mm EXB-4200", "EXBT-4200",
  "EXABYTE EXB-4200c", "Exabyte 4mm EXB-4200c", "EXBT-4200c"
  EXBT-4200 = 1,0x34,1024,0x0029,4,0x63,0,0,0,3; 
  EXBT-4200c = 1,0x34,1024,0x0029,4,0x63,0,0x13,0,3; 
Exabyte also recommends that the following levels of code should be used 
in the 4mm tape drives:
EXB-4200     No restriction, but recommend level 148 or higher
EXB-4200c    Level 149 minimum (mode select for compression)
I have tested both configurations and they seem to work just fine.
My original message:
> Greetings and all that.
> 
> We have recently been given 2 4mm Exabyte FS400 drives.  These were 
> originally intended for Intel-based systems, but through some mixup they 
> ordered the wrong drives.
> 
> Anyhow, I now have these things, and I'm trying to figure out how to get 
> them to work on our Suns.  We are running 4.1.3_U1 Rev B, and will be 
> upgrading to 2.4 soon.
> 
> What changes do I have to make to st_conf.c (and other files) to get 
> these to work?  probe-scsi reports   
> 
>   removable tape      EXABYTE EXB-4200c      124
> 
> Any clues?
Dave
______________________________________________________________________________
Dave Hightower              |    opinion? I'm allowed to have an opinion?
Systems Manager             | well, if I DID have one, it'd be mine, all mine!
Air Force Wargaming Center  |             "Dum vivimus, vivamus!"
hightower@afwc.af.mil       |
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This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:09:15 CDT