Hi Alan, On Sunday 16 March 2008 14:55, Alan Cox wrote:According to you. A more accurate statement: if you have the ramdisk on the host, then the host is assumed to be reliable. If the ramdisk is external (http://www.violin-memory.com/products/violin1010.html) then your statement is untrue in every sense. But you did not address the logic of my statement above: that your fundamental design prevents you from operating at ramdisk speed during normal operation. No wait, it is completely normal. There is a barrier on every journal transaction. Constructing such a load is trivial. It is completely normal for a transaction processing system. I care about them, as do others. Exactly the purpose for which this driver was written. And as a bonus it happens to be useful for internal ramdisk applications as well. (It is useful for me, however your mileage may vary.) Device mapper already can, so I do not get your point. Also, what is this layering violation you refer to? If. Hostility does not equate to accuracy. Galileo comes to mind. I see people arguing that a server+linux+batteries+mirroring+replication cannot achieve enterprise grade reliability. Balderdash. Regards, Daniel --
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