[OT] Re: [Cialug]voip

[Dave Weis]

neal daringer wrote:
> isn't there a standard for how data centers are supposed to be powered 
> in the event of failure? or is that more of a decision of the persons 
> who design it. i've only been physically in one data center before (at 
> AEGON in C.R.) they had like 3 huge diesel generators and rows and rows 
> of batteries. one floor of switches and another floor of servers. 
> something that large has to have a good plan in place for power failure.

The outside plant world is very different from the data center :-)

I don't imagine they've had huge data center failures but if you have a 
box on a pole or in a pedestal every few blocks it's not cost effective 
to have a 12 hour battery backup on all of them. That design made sense 
when people's TV's and computers were off at the same time the power was 
out but when people would like their phones to work at the same time 
that layout doesn't work as well.

> Dave Weis wrote:
>> neal daringer wrote:
>>> UPS? i have a ups with enough juice to power my cable modem, switch, 
>>> and ATA for a good 8 hours. i dont think i need to worry about having 
>>> less reliability than POTS. the difference between POTS and voip can 
>>> be negligible, you just have to be willing to take the extra 
>>> steps(most of which the POTS systems has in place but you never see 
>>> i.e. diesel generators, etc.)
>>
>> There's still large parts of Mediacom's network that either doesn't 
>> have battery backup or very short duration backup.
>>
>> One of the things the telco has right is fewer bigger boxes with large 
>> strings of batteries in them and generator taps on the side in case 
>> the batteries run out.