DEC RF30 Integrated Storage Element Service Guide

Rob Jarratt robert.jarratt at
Thu Dec 23 03:45:06 CST 2021

I wonder if anyone knows what diagnostic code 300B means?

>>>set host/dup/uqssp/disk 2 params
PARAMS> status config

  Node DIA0   is an RF30 controller
  Software RFX V103 built on  5-MAY-1989 13:18:42
  Electronics module name is EN94019334
  Unit is inoperative, error code 300B(X)
  Last known unit failure code 300B(X)
  In 60233 power-on hours, power has cycled 189 times
  System time is  5-MAY-1989 13:19:46



> -----Original Message-----
> From: cctalk <cctalk-bounces at> On Behalf Of Rob Jarratt via
> cctalk
> Sent: 22 December 2021 15:59
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at>
> Subject: DEC RF30 Integrated Storage Element Service Guide
> I am looking for the service guide for the RF30 DSSI disk. It is not on
Manx and
> not on BitSavers. Does anyone know of a copy? The part number is
> apparently EK-RF30D-SV.
> Thanks
> Rob

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