Sort:  

Backup witness nodes require higher specifications than I thought.
Ubuntu must be available, and RAM must have 64G or more and 1TB SSD.

Thank you for that info. Yes, that requirement is quite high.
Just for curiosity, what are the sources to find out more specifications!

Coin Marketplace

STEEM 0.17
TRX 0.16
JST 0.029
BTC 60782.57
ETH 2381.28
USDT 1.00
SBD 2.64