Well, In fact I do (as you can see from my configuration). I have a similar server running with hot standby replication - and it runs two 3T HDD in a RAID1 array.
So - is it still very bad if I choose to put four intel 520 disks in a RAID10 array on the other production server? Den 12/12/2012 kl. 03.47 skrev Craig Ringer <cr...@2ndquadrant.com>: > On 12/12/2012 10:13 AM, Evgeny Shishkin wrote: >> >> Yes, i am aware of this issue. Never experienced this neither on intel 520, >> no ocz vertex 3. >> > > 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
