Re: looking for RAID 1+0 setup instructions?

[Götz Reinicke <goetz.reinicke@xxxxxxxxxxxxxxx>]

Miguel Medalha schrieb:
>> what is your purpose with this Level? I'm asking because I had done some 
>> raid level tests some time ago with hardware raid controllers/systems 
>> from 3ware, sun and iscsi-raidsystems and some softwareraid setups.
>>   
> 
> The purpose of using RAID 10 is, of course, performance coupled with 
> full redundancy.

> 
>> I haven't seen significant performance differences using different 
>> levels. (I'm not comparing the controllers.)
>>   
> 
> Did you test RAID 10 also?

> I am using software RAID 10 with CentOS 5.3 and I surely did see a 
> *huge* performance increase with RAID 10 compared to RAID 1 only.

I tested 1+0 vers 0+1 vers 5 on the 3ware, the sun build in raid system 
and using softwareraid on an other (older) server.

On the iscsi systems and the 3ware controller I tested raid 5 vers. 6 as 
well.

May be I should have mentioned that.

My conclusion on my systems was:

Level 5 is the best concerning performance/capacity.

Regards,

	Götz
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