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On 12/12/2012 10:13 AM, Evgeny Shishkin
wrote:
I wouldn't trust either of those drives. The 520 doesn't have Intel's " Enhanced Power Loss Data Protection"; it's going to lose its buffers if it loses power. Similarly, the Vertex 3 doesn't have any kind of power protection. See: http://www.intel.com/content/www/us/en/solid-state-drives/ssd-320-series-power-loss-data-protection-brief.html http://ark.intel.com/products/family/56572/Intel-SSD-500-Family http://www.ocztechnology.com/res/manuals/OCZ_SSD_Breakdown_Q2-11_1.pdf The only way I'd use those for a production server was if I had synchronous replication running to another machine with trustworthy, durable storage - and if I didn't mind some downtime to restore the corrupt DB from the replica after power loss. -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services |
