Hacker News Reader

Does Heroku have an SLA? (I could not find it)

At some point they're exposing themselves to serious risk. Rackspace had to pay out ~$3MM (in free service credits) after an outage in 2009:

http://www.networkworld.com/news/2009/070609-rackspace-outag...

View on HN

This is offtopic, but what's MM? What's the second M for?

M = 1000 in Roman numerals, but the confusing bit is not reading them like Roman numerals (2000) but rather interpreting them as one thousand thousands, or one million.

Hmm, so who uses this? How is it better than just saying $3M?

This came up in a thread a while back (http://news.ycombinator.com/item?id=1483667). Bottom line is that "MM" comes from the banking/finance world. In banking, $3M actually means $3,000 and $3MM means $3,000,000.

I see, thank you. I prefer the SI, kilodollars, megadollars, etc.

MM is the standard abbreviation for million in the financial world. "The great thing about standards is that there are so many to choose from."

Reply on news.ycombinator.com