[CentOS] [OT] 8-15 TB storage: any recommendations?

Thomas Harold thomas-lists at nybeta.com
Thu Jan 7 17:01:58 UTC 2010


On 1/7/2010 10:54 AM, John Doe wrote:
> From: Karanbir Singh<mail-lists at karan.org>
>> On 01/07/2010 02:30 PM, Boris Epstein wrote:
>>> KB, thanks. When you say "dont go over 1 TiB in storage per spindle"
>>> what are you referring to as spindle?
>>
>> disk. it boils down to how much data do you want to put under one
>> read/write stream.
>>
>> the other thing is that these days 1.5TB disks are the best
>> bang-for-the-buck in terms of storage/cost. So maybe thats something to
>> consider, and limit disk usage down initially - expand later as you need.
>>
>> Even better if your hba can support that, if not then mdadm ( have lots
>> of cpu right ? ), and make sure you understand recarving / reshaping
>> before you do the final design. Refactoring filers with large quantities
>> of data is no fun if you cant reshape and grow.
>
> I also heard that disks above 1TB might have reliability issues.
> Maybe it changed since then...
>

I remember rumors about the early 2TB Seagates.

Personally, I won't RAID SATA drives over 500GB unless they're 
enterprise-level ones with the limits on how long before the drive 
reports a problem back to the host when it has a read error.

Which should also take care of the reliability issue to a large degree.


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