Re: postgresql random io test with 2 SSD Kingston V+100 500GB in (software) Raid1

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On 04/19/2011 05:15 AM, Laurent Laborde wrote:
2 kingston V+100 500GB

Thanks for the performance report. The V+100 is based on a Toshiba T6UG1XBG controller, and it doesn't have any durable cache from either a battery or capacitor. As such, putting a database on that drive is very risky. You can expect the database to be corrupted during an unusual power outage event. See http://wiki.postgresql.org/wiki/Reliable_Writes for more information.

At this point most people considering one of Kingston's drives for a database would be better off getting an Intel 320 series drive, which is around the same price but doesn't have this issue.

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Greg Smith   2ndQuadrant US    greg@xxxxxxxxxxxxxxx   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us
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