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Re: [OCLUG-Tech] SATA RAID Recommendations for Linux

* Milan Budimirovic <milan [ dot ] budimirovic [ at ] sympatico [ dot ] ca> [060619 20:15]:
> Since you asked:
> 
> *********************************************************
> root@oconnor:/etc# hdparm -tT /dev/sda1
> 
> /dev/sda1:
> Timing cached reads:   4188 MB in  2.00 seconds = 2094.00 MB/sec
> Timing buffered disk reads:  218 MB in  3.01 seconds =  72.43 MB/sec
> 
> *********************************************************

The numbers are almost identical to software raid
(http://www.jukie.net/~bart/blog/raid10-performance).  
But I bet you get 0 cpu overhead :)

> The drives are 160G Seagate SATAII drives. There are 4 drives in a RAID 
> 10 configuration.

Good choice as far as manufacturer goes -- I have a few, and I do
recommended them.  

I still think you should have varied your drives...  especially the ones
in the mirror set.  Recall my warning from emails ago about drives with
similar serial numbers, coming of the same production line, having the
same flaws.  Hopefully I am wrong.

-Bart

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