[CentOS] Recommendations for a “real RAID" 1 card on Centos box

Fri Mar 14 13:34:16 UTC 2008
Toby Bluhm <tkb at MidwestInstruments.com>

Toby Bluhm wrote:
> Therese Trudeau wrote:
>>>> You can turn on write back caching if you have a UPS as well
>>>>  (provided your UPS is wired into your system for a graceful shutdown)
>>> Hopefully you have a redundant PS unit. Having a UPS is not going to
>>> help if your PS fails.
>> That's a very good point never thought of that.  Acrtually this RAID 
>> 1 setup I'm planning
>> is for my desktop machine, problem is is's not built like a server so 
>> there is not the traditional slid in bay for a second PS as do many 1 
>> and 2u rack servers have.  Unless there is some
>> specialty product available that somehow fits in to a tower case. 
>> Could you reccomend a redundant PS for a desktop machine (if they 
>> exist)?
> The whole system needs to be designed for dual supplies. You can't 
> just plop down two power supplies in parallel without some circuitry 
> that  attempts to monitor & balance them out.
> I'm curious - why does your desktop needs so much redundancy ?

Just for fun, the first hit on a google for "redundant atx power supply"


Seems you can just plop one into your std atx chassis . . .

Toby Bluhm
Alltech Medical Systems America, Inc.
30825 Aurora Road Suite 100
Solon Ohio 44139