Re: Contemplating SSD Hardware RAID - Mailing list pgsql-performance

From Yeb Havinga
Subject Re: Contemplating SSD Hardware RAID
Date
Msg-id 4E004E74.5020209@gmail.com
Whole thread Raw
In response to Re: Contemplating SSD Hardware RAID  (Yeb Havinga <yebhavinga@gmail.com>)
Responses Re: Contemplating SSD Hardware RAID
List pgsql-performance
On 2011-06-21 09:51, Yeb Havinga wrote:
> On 2011-06-21 08:33, Greg Smith wrote:
>> On 06/20/2011 11:54 PM, Dan Harris wrote:
>>
>>> I'm exploring the combination of an Areca 1880ix-12 controller with
>>> 6x OCZ Vertex 3 V3LT-25SAT3 2.5" 240GB SATA III drives in RAID-10.
>>> Has anyone tried this combination?  What nasty surprise am I
>>> overlooking here?

I forgot to mention that with an SSD it's important to watch the
remaining lifetime. These values can be read with smartctl. When putting
the disk behind a hardware raid controller, you might not be able to
read them from the OS, and the hardware RAID firmware might be to old to
not know about the SSD lifetime indicator or not even show it.

--
Yeb Havinga
http://www.mgrid.net/
Mastering Medical Data


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