Why in SunOS 5, SubBlade1000, instead of c2t1d0s0, the disk is defined as c2t2100002037f0da78d0s2?

Question

linux

Only one old doctor knows how to use the station, and it was turned off for a long time.
The station did not turn on, one of the monitors did too. I dragged it to myself, vacuumed it, turned it on - it works, but one of the monitors is striped (even without a signal from the outside, and everything looks fine inside). Turned off and returned home. Enabled. Gone, wandered, returned. The monitor is dead. Writes -

Dragged. Turned on, dead monitor (knocks out the fuse). I connected the usual one, there was not enough connector for the green wire.
Copied discs with "dd". Day poured from scsi disks, via (probably) usb1, with a speed (as dd wrote: 8xx kb per sec.) 18G and 36G. Booted from the gentoo installer for sparc64. It didn't recognize the disk layout. DD didn't give any errors. There were no scary sounds from the discs either.
Rebooted. Tried what it suggests - fsck -f ufs /dev... for existing drives.

1. Why could this happen? (Mixed on a trolley, two monitors and a PC, shocks are excluded. The battery is smaller than usual, I didn’t change it. The place there is not cursed, our canyons are cursed.)
2. How can I set a target for a disk?
3. Why are they 2, not 1. Disks with small crooked connectors (I could not find a machine or adapter with such ones), the choice of the disk is probably outside on the board (in the basket, I did not pull it out). From the basket, the tape goes to the board. Moved. Did not help.
4. How to copy the contents of NVRAM (or whatever they call it) Software licenses are most likely in it ...
5. If you virtualize this deadness (cards of video cards are non-standard, there are no processors and memory to replace, ... sooner or later the hardware will die) on QEMU - will it work? For the same performance, which platform is suitable? (better which one to look for in our list :)

Answer 1

I am adding.
If "cheating": rewriting vfstab to replace the old disk names with new ones ... But this is an extreme case.