OK, I've been getting adventurous today. I've been digging through a bunch of my parts and tapes. I discovered that I've got two ESDI controllers, instead of the one that I knew about, one is a Emulex QD21 which I found the manual online for, the other a "Webster WQESD" which I have the manual for. Figured out how to get both to work, and verified that at least one of the three 150Mb ESDI drives I've got work. I decided to go with the WQESD controller since the directions are easier to follow (the ASCII files are a bit messy on the QD21). Plus the WQESD controller looks to be the better of the two controllers. My configuration is as follows for reference BA123 Cabinet M8192-YB {11/73} M8067-LF {RAM} M8043 {DLV11J, used for console} Dilog DQ606 {floppy controller, boot ROMs} CSR=17772150 Webster WQESD {Quad-Height, boot ROMs turned off} CSR=17760334 M7504 M7546 {TK50 controller} NOTE: The DQ606 and WQESD both had the same CSR initially The drive is a CDC, and I identified all three drives as 150Mb drives when I got them, but for the life of me I can't find any kind of ID on it at the moment. It was formated on the WQESD controller. Next I decided to see about getting RSX11M onto the drive. So I started looking through my media, including for some reason my TK50's. Based on the labeling they are backups of DU disks, so the system that I got with V4.3 must have had DU disks at one point, despite the fact it was running on a single RL02 when I got it. I booted off one of my bootable TK50's, giving the RSX equivalent of Standalone Backup the proper CSR for the WQESD controller, and pulled out the manuals to try to figure out what I'm doing. Unfortunatly when I try to "BAD" the disk I get the following: BAD>du0:/list BAD -- DU0: Uncoverable error -65. BAD> And a "BRU" in the following: BRU>/ini From: mu0: To: du0: BRU - Starting Tape 1 MUA0: BRU -- *FATAL* -- Home block write error I/O error code -65 BRU> According to the Utilities manual error -65 needs to be looked up in the "IAS/RSX-11 I/O Operations Reference Manual", which I'm not sure if or where I've got. The manual for the WQESD mentions that non-DEC drives must be compatible with those listed below: *RX50 *RD51 *RD52 *RC25 *RA60 *RA80 *RA81 So does this mean that it needs to look like one of these drives for the OS to like it? If so, I guess that explains the above error. In order to test this theory, I was threatening to replace the ESDI controller and drive with a RQDX3 and RD52, however, I don't seem to have a documentation for the RQDX3, just the 1 & 2. Are the 11 jumpers at the bottom of the board for setting the CSR, and are they the same as on a RQDX2? They appear to be. I realize that using the DQ606 and DLV11J in the place of a proper board, such as a MXV11, to boot off of is far from ideal, unfortunalty it's currently the best solution I've got. I'd thought of trying to use the PDP-11/23+ CPU I've got, but discovered it doesn't support TMSCP tape drives as a boot device, where the DQ606 does. Somehow I don't really feel like trying to type in the bootstrap for a TK50 if I can help it (yes, I'm being lazy). Does anyone have any thoughts or suggestions on this mess? Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |