Need help with a 11/23+ and a M8061 RL02 card.

The M8029 and the M8061 are totally separate devices and do NOT interact with each other. The standard CSR,VECTOR for each are totally different. If both are working correctly, you can remove one or the other and still operate. IMPORTANT!!!!!!!!! A BA23 has the top 3 slots ABCD. The other 5 slots are ABAB and must be filled to provide bus continuity up to that point in the chain. An RQDX1 MUST be the last board in the chain since it does not provide bus continuity. Unused slots at the end of the bus grant chain are not a problem and can remain empty. If you remove the M8029, move up the M8061 and the M8639 boards one slot since you can't leave the 3rd slot empty. BUT, if you place the M8061 in the 3rd slot, on a BA23, the M8029 will require a bus grant card in the dual slot beside it in the 4th quad slot or the M8639 below it will not work. If the M8639 in an RQDX2 (an RQDX2 is an M8639-YB), then you can place the M8639-YB in the 4th slot and the M8029 in the far right of the 5th slot - otherwise you will require an M9047 in the far right of the 5th slot if the M8029 is in the far left of the 5th slot. The configuration you have right now with slot 2 and slot 3 half filled is correct. Each of the dual boards in slot 2 and slot 3 are on the extreme left which is correct. If the boards were not in the correct place, you could not boot with the RX02. Since the RX02, RX50 and Hard drive all boot, I would suggest that the RL02 hardware seems to have an isolated problem. After you boot RT-11, perform: SHOW DEVICE command and see if the M8061 controller has been recognized. Since you have strapped the M8061 as the factory setting, it should be at the standard CSR and VECTOR. RT-11 will display: "Not installed" if the M8061 is not recognized (something is not working). If: "Installed" is displayed, then the M8061 is being recognized, although that does not mean the M8061 is working correctly. Which you obviously realize, but are asking for help in determining what exactly is the problem: (a) M8061 controller (b) RL02 drive (c) Cables (d) Rl02 pack While cables may be OK, it is possible to connect them backwards. If I remember correctly, when that happens, the RL02 RED fault light is on - unless it is burned out. Of course, one of the cables could have a broken wire. At this point, it seems like you have the RL02 isolated as the problem, but you will need help from a hardware individual to figure out the best way to solve the problem. BUT, be very careful since a bad pack can damage a drive which then damages other packs. Jerome Fine

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