Software RAID issues (was Re: Suggestions solicited, server bring up)

[Bruce Labitt]

Bill McGonigle wrote:
> On 11/18/2009 03:33 PM, Ben Scott wrote:
>   
>>   I've found hardware RAID to be more reliable when booting with a
>> degraded disk set.  A smart controller will just fail the bad member
>> disk and ignore it.  Software-based solutions -- which don't kick in
>> until the OS is running -- sometimes get caught up trying to boot from
>> a failed disk.
>>     
>
> To steal a line from one of my LUG members, "Please don't use RAID-5".
> :)  A healthy, properly configured (and tested) RAID-1 will boot nicely.
>
> -Bill
>
>   
Bill, why not RAID-5?  Isn't RAID-5 supposed to be ultra-reliable?  As 
in hot swap disks?  Or does this just apply to software RAID-5...

-Bruce
who knows very little about this RAID stuff...