It looks to me like you've got:

1. "cds:"
2. not-slashes up to a slash (strain)
3. not-slashes up to a slash (location)
4. not-slashes, a slash then not-whitespace up to a whitespace (ID)
5. 4 digits, slash, 2 digits, slash, 2 digits (date)
6. the rest of the line (???)

Since the field separations are sometimes slashes, and sometimes whitespace, a regex with 4 or 5 captures in it sounds like the way to go.