After the 2nd outage we decided to take up additional colo space elsewhere in the country. This has worked for years and any failures in our life datacenter have quickly been switched over to a hot backup datacenter.
We have had around a half dozen minor interruptions caused by server component failures ( psu / hard drive). This is because it takes a few minutes to detect the failure and switch over to a backup.
3, The last major failure was with our DNS hosting. They decided to scratch our main zone from there records because of a billing error. Luckily for us it happened on the Friday before a weeks school holiday. Needless to say we took our business elsewhere.
I'm sure we have had other instances of downtime I can't remember, but that's pretty much us in a nutshell. No idea what our uptime on paper would be, funnily.
That's not too bad. But does that all add up to more than 9 hours a year of downtime? If so, you're already doing worse than 99.9% uptime.
I would also bet your uptime is worse than you think if you're not actively measuring it. However, I'm sure it is "good enough". I doubt it is worth spending an order of magnitude more money to get better than 3 9's for your business, which is more or less the point of the article imo.
We have had 3 incidents in the last 7+ years. The first 2 occurred when we only had servers in one site.
1, http://www.risktec.co.uk/news/business-continuity-%E2%80%93-... (lasted days!!) 2, A thunderstorm knocked out the power to our datacenter, the backup UPS and generators both failed to engage. (lasted a day, we also took our business elsewhere)
After the 2nd outage we decided to take up additional colo space elsewhere in the country. This has worked for years and any failures in our life datacenter have quickly been switched over to a hot backup datacenter.
We have had around a half dozen minor interruptions caused by server component failures ( psu / hard drive). This is because it takes a few minutes to detect the failure and switch over to a backup.
3, The last major failure was with our DNS hosting. They decided to scratch our main zone from there records because of a billing error. Luckily for us it happened on the Friday before a weeks school holiday. Needless to say we took our business elsewhere.
I'm sure we have had other instances of downtime I can't remember, but that's pretty much us in a nutshell. No idea what our uptime on paper would be, funnily.