[CentOS] Infrastructure HELP!

Clint Dilks clintd at scms.waikato.ac.nz
Thu Oct 29 21:57:15 UTC 2009



Curt Mills wrote:
> On Thu, 29 Oct 2009, Matt wrote:
>
>   
>> What is the cheapest SATA hardware raid card I can get at newegg.com?
>> Seems like most turn out not to be true hardware raid that I have
>> found and will not run on CentOS 4.8 without a great deal of grief.
>>     
>
> Not a direct answer to your question, but be careful of SATA drives.
>
> As I understand it SAS drives (Serially Attached SCSI) are designed
> to handle server duty (multiple processes stepping the head 24/7),
> whereas SATA drives (Serially attached ATA) are not.  SATA drives if
> used in servers will fail prematurely.  They're great/cheap for home
> use though.
>
> I've also heard that SATA-2 drives are more like SAS or SCSI drives
> in this respect, as in they're designed for server duty.
>
> I probably heard the above on this very list in the past.
>
> Can someone confirm or deny?  Making me look like a fool is ok, I'm
> used to it.  ;-)
>
>   
We use SATA in a number of Production Systems.  If its server class 
hardware I haven't seen issues.  So I wouldn't treat this as a big concern.


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