[nmglug] filesystem optimization on software raid 5

[Andres Paglayan]

what's your bandwidth?
may be you are tackling something which doesn't need to be addressed  
beyond a regular standard,



Andres Paglayan

--"Harmony is more important than being right"
Bapak




On Jun 13, 2007, at 6:32 PM, Jason Schaefer wrote:

> So, back to "filesystem optimization" ??
>
>
>
> Ken Long wrote:
>> On 13 Jun 2007 at 7:55, Aaron wrote:
>>
>>
>>> RAID5, in general, is a bit dangerous.  Software RAID5, even more  
>>> so.
>>> As one disk dies, it tends to produce some bad data, which in turn,
>>> corrupts the other drives.  Some data is often lost.
>>> I'm not an expert at the recovery tools...  but theoretically,
>>> you should only loose a little data if you can re-build the rest OK.
>>>
>>
>> People use raid 5 in their servers because it is more reliable. If  
>> you lose one drive you can keep on running with no loss of data  
>> while you schedule the drive replacement. That's the whole point.
>>
>> After the failed drive has been replaced no one is the wiser.  
>> (Except the poor system admin who has grown several more grey  
>> hairs over the whole incident.)
>>
>> Physical security, power protection and daily backups are also  
>> part of the overall strategy.
>>
>> Ken
>>
>>
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>
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