[rescue] Sun 4/40 External HDD SCSI timeout

[Sandwich Maker]

" From: Giuseppe Francesco INDELLI <indelli at unict.it>
" 
" Hi All,
" 
" I have a Sun 4/40, SPARCstation IPC, equipped with two 207MB HDD SCSI 
" configured as follows:
" 
" Target  0 (internal disk)
" Unit 0        Disk        QUANTUM PD210S        SUN0207492W0492W2SS
" 
" Target  3 (external disk)
" Unit 0        Disk        CONNER CP30200        SUN020742349229P9BRV
" 
" At SPARCstation power on, the system hangs during booting just after the 
" following line:
" 
" esp0:    Target 0 now Synchronous at 3.572 mb/s max transmit rate
" 
" The system hangs in the line above for about one minute, then the 
" following line message appears:
" 
" esp0:    polled command timeout
" 
" Then the system rebooting automatically.
" 
" Please, any help would be greatly appreciated.

my first suspicion - the internal drive has failed / is failing.  also
possible: the polled cmd timeout could be for target 3.

what happens if you try booting with the external drive disconnected?
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