🚀 go-pugleaf

andreas@euler (Andreas Kaulfuss) writes:

>I am using my DEC Professional 350 with a 10MB-HD. Now I want to install
>a lager one. I heared about someone, who successfully installed a Seagate
>ST 225 (20 MB). What do I have to do if I want to install a 40 MB harddrive?
>Does the controller support this harddrives?
>My operating system is Venix 2.0.
>Please send replies to

> andreas.kaulfuss@fernuni-hagen.de

  I am using an ST225 in my PRO.  Before you install the drive, you need to
  make sure the ROMs on the hard disk controller card are up to the proper
  revision level.  ROM#1: 073B2, ROM#2: 072B2, ROM#3: 071B2.  If you don't
  have these ROMs, it probably won't work.  I'm running P/OS 3.2 on my
  system; I don't know about Venix 2.0 support for the larger drives.

  One other anomaly I noticed during installation:  when P/OS went to format
  the hard disk, it seemed to do an excessive amount of head seeks.  It
  seemed as though it was resetting the head to track 0 between each
  write, which didn't seem proper.  There may be a jumper option on the ST225
  that I didn't have set the same way as on the DEC version (the RD31).
  In any event, it was slow, but it did format correctly and I was able to
  install the O/S just fine afterwards.

  I obtained my upgrade ROMs from a local shop, DEKTECH in here in Sunnyvale
  California.

  Good luck!

  Kurt