How to check if a chain/hashboard physically exists?

[comby]

Hi there,

I have a few S9 in a remote datacenter and would like to know if there's a ssh command to check if a hashboard physically exists?

Thank you!

[mikeywith]

I don't think such command exists, your only way would be checking the kernel log, especially the part where it shows finding asics on each chain, the only problem with this method is that hashboars showing 0 asics might be plugged and toasted or simply don't exists which could give you a false positive/negative, but there is probably another part in the kernel log that shows more details, let me know what gear do you have (s9, i,j,k) i i will try to look for clues in the kernel.