So how critical is system uptime to your organisation?  Uptime or Availability is calculated as a percentage of time that a system is fully operational.  When your systems stop, your business stops.  Do you want your staff twiddling their thumbs and your customers going elsewhere in frustration – or do you need great system availability?

 

We’ve done our own calculations on exactly what availability represents in terms of days, hours and minutes of downtime.  Bear in mind that public cloud is typically only between 99.95 and 99.9% uptime and high availability clusters are around 99.95% uptime.  That’s still a considerable amount of downtime for your business critical systems.

 

If you need real system availability then think about the Stratus suite of products.  Stratus everRun high availability software and Stratus ftServer provide ‘five nines’ and ‘six nines’ uptime for your business.  What does your business need?

AVAILABILITY DOWNTIME/YEAR DOWNTIME/MONTH DOWNTIME/WEEK
90% (‘one nine’) 36.5 days 73 hours 16.8 hours
95% 18.25 days 36.5 hours 8.4 hours
97% 10.96 days 21.9 hours 5.05 hours
98% 7.3 days 14.4 hours 3.36 hours
99% (‘two nines’) 3.65 days 7.3 hours 1.68 hours
99.5% 1.83 days 3.65 hours 50.4 minutes
99.8% 17.52 hours 87.6 minutes 20.2 minutes
99.9% (‘three nines’) 8.76 hours 43.8 minutes 10.1 minutes
99.95% 4.38 hours 21.9 minutes 5.05 minutes
99.99% (‘four nines’) 52.56 minutes 4.38 minutes 1.01 minutes
99.999% (‘five nines’) 5.26 minutes 26.3 seconds 6.06 seconds
99.9999% (‘six nines’) 31.5 seconds 2.63 seconds 0.605 seconds

 

Is your IT system resilience good enough? Check your ‘9’s