3 ms·
4-nines is 99.99% reliability (downtime of about 1 hour per year). More detail :http://en.wikipedia.org/wiki/High_availability http://en.wikipedia.org/wiki/Hig
by mdda 15y ago
4-nines is 99.99% reliability (downtime of about 1 hour per year). More detail :http://en.wikipedia.org/wiki/High_availability http://en.wikipedia.org/wiki/High_availability