[CentOS] Infrastructure HELP!

Ryan Wagoner rswagoner at gmail.com
Thu Oct 29 20:03:06 UTC 2009

If you want performance stick with RAID 10. In general the more drives
(spindles) the faster the array. The Western Digital RE3 500 GB drives
are a good deal. You should be able to get 4 of those in the low
$200s. In RAID 10 this would give you better performance than 2 x 1TB
in RAID 1.


On Thu, Oct 29, 2009 at 2:36 PM, ML <mailinglists at mailnewsrss.com> wrote:
> On Oct 29, 2009, at 11:11 AM, Neil Aggarwal wrote:
>> RAID 10 is striping across mirrored drives.
>> So, if you have 4 x 1TB drives, think of it as two separate
>> 1 TB volumes.  The system will write half your data to
>> volume A and the other half to volume B.  The data in volume
>> A and B do not overlap.
>> Now, each volume is composed of a mirrored set of drives.
>> Anything written to volume A is actually stored on two drives.
>> Anything written to volume B is actually stores on the other two
>> drives.
>> Does this make sense?
>> Let me know if you need any more explanation.
> No it makes sense.
> I am contemplating if I really need 4 x 1tb in this system. I mean how
> much space with some photo's, web pages and MySQL take up if there are
> 5,000 subscribers to start up?
> Would 2 x 1TB enterprise drives be enough mirrored?
>> Also, when you move to a hosted solution, I would appreciate
>> your considering my company for it.
> Sure, I will be doing a lot of research on that for sure.
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