The index was about 32GB. I was using the default settings and tried running some crawls on quite large sites. I think I tried about 10 or more sites.
I wouldn’t mind caching the results, if they could be made of use to the rest of YaCy users. I could see some improvement in the search results I had after those few crawls, which were still in progress when allocated space became full.
By the way, if I wish to reinstall YaCy to a larger drive, is it an easy process to copy paste a folder into the new installation to avoid having to go through the crawling again?