Some progress with my PDP-11/73 system

I've made some progress on getting my PDP-11/73 system up and running. I have successfully created an RX50 XXDP boot floppy and have booted XXDP. My next step was to try to format the RD54 hard drive. I did this by running the ZRQCH0 (where does this name come and got the following failure. Does this indicate that my RQDX3 controller is bad or is this likely to indicate a bad hard drive? .R ZRQCH0 ZRQCH0.BIN DRSSM-G2 ZRQC-H-0 RQDX3 Disk Formatter Utility UNIT IS Formattable Winchester (RDnn) or Floppy (RX33) Drives RSTRT ADR 145702 DR>START CHANGE HW (L) ? Y # UNITS (D) ? 1 UNIT 0 Enter controller IP Address (O) 172150 ? What unit do you want to format [0-255] (D) 0 ? Would you like to revector a single LBN only [Y/N] (L) N ? Do you want to use the "AUTOFORMAT" Mode [Y/N] (L) Y ? Enter unit serial number [1-32000] (D) 12345 ? **** WARNING **** ALL DATA ON SELECTED DRIVE WILL BE DESTROYED Write protect all drives not being formatted. Please verify that the selected drive is ON LINE and NOT write protected. If formatting RX33 media, insert media to be formatted in the selected drive. Do you wish to continue [Y/N] (L) Y ? ZRQC SYS FTL ERR 00013 ON UNIT 00 TST 001 SUB 000 PC: 105742 Autosizer Failed. Status: Controller Chip Never Interrupted. ZRQC SYS FTL ERR 00006 ON UNIT 00 TST 001 SUB 002 PC: 105742 Fatal Controller Error During Initialization. ZRQC EOP 1 2 TOTAL ERRS DR>