[mythtv-users] Migrating RAID

Rudy Zijlstra mythtv at grumpydevil.homelinux.org
Sun Nov 4 00:29:24 UTC 2007


Dan Ritter wrote:
> On Sat, Nov 03, 2007 at 05:10:38PM -0600, Brian Wood wrote:
>   
>> Rudy Zijlstra wrote:
>>
>>     
>>>>>> A lightning strike might take them both out, especially if the
>>>>>> cable is copper. Can you replace it with a fiber-optic link?
>>>>>>       
>>>>>>             
>>>>> Or just use a surge protector for the CAT5 cable on each end.
>>>>>     
>>>>>           
>>>> That's not going to work. 
>>>>
>>>> -dsr-
>>>>
>>>>   
>>>>         
>>> Can you explain why not? installing surge protectors i can, exchanging 
>>> to fiber-optic is much more difficult, as i would have to learn how to 
>>> make the connector on the fiber cable..... Also, i run big risk of 
>>> damaging a fiber cable when pulling it into place :(
>>>       
>
> Brian gave a good explanation.
>
> You can buy premade fiber cables of varying lengths.  100 meters even
> is not unusual.
>
> You'll want to run it through a conduit of some sort, but --
> aren't you running the copper through a conduit now? Otherwise I
> would assume that you will be replacing it several times a year
> -- lawn mowing, for instance.
>
> -dsr-
>   
It is running though a conduit.. which is pretty full. Which means i 
have no space for the connector to pull through :(
Also, inside i have to go through some small spaces, and increasing 
space for this is a major work :(  Cat 5e cable can stand quit a bit off 
pulling, and sharp corners. Not so certain on fiber optic cable in that 
respect.

hmmm, could do it for a short run, simply to have the isolation. Do not 
care too much about a device being fried. Problem with an almost direct 
hit is, i am rather afraid it would not only fry the switches at both 
ends of that cable, but might actually continue on through those 
switches onto the rest of the network.

Rudy



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