“howoldami” would be nice….
What is the model number/name on the box
Sparc 1, Sparc 10, -> 10-15 years old
Sparc Classic, Sparc 5 -> 5-10 years old
SuperSparc 5, etc. roughly 5 years, give or take
Does it use SCSI or IDE hard drives? Unless it’s a serious server, most Solaris boxes in the last 5+ years have used IDE
How much memory does it have vs. is capable of holding? This has also been scaling up over the years
What is the hard drive capacity – also scaling up over the years.
The Model name/number is still the best determinant.