Quick Question on Industry Standard
From my understanding there is a 99.97% up time value that most companies try and match. Is this a hard and fast rule or is this a value that we all try and emulate as best as we can? Do I have the value incorrect? Is it higher or lower? I had always thought that it was 99.97% but have not found anywhere to reference that figure, it was just via talking with others and checking available uptime statistics. My understanding also takes into account that it does not include controlled downtime due to any maintenances.
Any thoughts? Kim
From my understanding there is a 99.97% up time value that most companies try and match. Is this a hard and fast rule or is this a value that we all try and emulate as best as we can? Do I have the value incorrect? Is it higher or lower? I had always thought that it was 99.97% but have not found anywhere to reference that figure, it was just via talking with others and checking available uptime statistics. My understanding also takes into account that it does not include controlled downtime due to any maintenances.
Any thoughts?
From my point of view, and the clients I deal with, like to keep there core network and systems at 5 nines (99.999%). But that is the regulated lottery world, and we can be fined heavily if we don't meet that level of uptime. Oh and scheduled outages aren't included, but everything is redundant so we just work on one then the other so there is network wide outage, just a lack of redundancy for x number of minutes.
-Vince
On Sat, 6 Apr 2002, K. Graham wrote:
From my understanding there is a 99.97% up time value that most companies try and match. Is this a hard and fast rule or is this a value that we all try and emulate as best as we can? Do I have the value incorrect? Is it higher or lower? I had always thought that it was 99.97% but have not found anywhere to reference that figure, it was just via talking with others and checking available uptime statistics. My understanding also takes into account that it does not include controlled downtime due to any maintenances.
There is no industry technical standard. Different Internet service providers advertise a wide-variety of numbers set by their marketing departments. Depending on the customer and provider, you may negogiate other values more suitable for your budget and requirements. It is common for ISPs to advertise 100% uptime guarantee*. That asterisk is the critical piece of information. Most service providers loath to call anything an "outage" no matter how bad the service gets. Just what is emergency scheduled maintenance or routine emergency operation?
On Sat, Apr 06, 2002 at 06:18:02PM -0500, Sean Donelan wrote:
There is no industry technical standard. Different Internet service providers advertise a wide-variety of numbers set by their marketing departments. Depending on the customer and provider, you may negogiate other values more suitable for your budget and requirements. It is common for ISPs to advertise 100% uptime guarantee*. That asterisk is the critical piece of information. Most service providers loath to call anything an "outage" no matter how bad the service gets. Just what is emergency scheduled maintenance or routine emergency operation?
My personal favorite example along this line came from Verio, who tried to claim that they shouldn't have to pay an SLA credit for a 24 hour outage because, even though their monitoring clearly showed that their router would route for 30 seconds and then not route for 30 seconds, that was a "bunch of 30 second outages" and not a 24 hour outage. Just remember, it's not an outage, it's an (quoting AboveNet here) "unscheduled network event". :) -- Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6)
participants (4)
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K. Graham -
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