| From: | Florian Weimer <fweimer(at)bfk(dot)de> |
|---|---|
| To: | Yeb Havinga <yebhavinga(at)gmail(dot)com> |
| Cc: | Greg Smith <greg(at)2ndQuadrant(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Contemplating SSD Hardware RAID |
| Date: | 2011-06-21 11:19:43 |
| Message-ID: | 82d3i777ow.fsf@mid.bfk.de |
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| Lists: | pgsql-performance |
* Yeb Havinga:
> 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.
3ware controllers offer SMART pass-through, and smartctl supports it.
I'm sure there's something similar for Areca controllers.
--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99
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