Messages in this thread | | | From | Bernd Eckenfels <> | Subject | Re: [ANNOUNCE] Ramback: faster than a speeding bullet | Date | Sun, 16 Mar 2008 00:18:55 +0100 |
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In article <200803151417.13899.phillips@phunq.net> you wrote: >> RAID controllers do not have half a terabyte of RAM. > > And? Either you have battery backed ram with critical data in it or > you do not. Exactly how much makes little difference to the question.
Besides, some SAN Storage Devices do have that amount of Ram. However it is better protected as in your typical PC. With Mirroring, it can be removed (including the battery packs) - and there is a procedure to actually replay the buffers once the new devices are in place.
But thats not an argument against or in favor of Ramback, its just two different things. You would be suprised how many databases run on write back mode disks without fdsync() any nobody cares :)
Greetings Bernd
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