Ahh, I see and good question. Not sure myself of the exact numbers, however if the load on the filer is already light, it may even be possible that you are not even using half of the original NVRAM size before the 10 second timer expires anyway. In this case I would think the net performance hit would be 0%
But as far as performance effect as a result of more writes, I should probably leave that one for someone else...
--Lee
On Fri, 18 Feb 2000, Jay Orr wrote:
Yea, I figured as such, but I was looking for a more quantative answer. Our CPU isn't that taxed, so in theory would we not notice any performance hit? I mean, regardless of the amount of NVRAM, the info has to be written back - I would just imagine that less ram means more writes. How does this factor into the big picture of "performance of the filer" ?
Hi Jay,
This will affect write performance. In essence, there will only be half as much space in NVRAM to hold write data before flushing to disk, so you will most likely end up flushing to disk more often.
--Lee
On Fri, 18 Feb 2000, Jay Orr wrote:
Here's a question - we had to replace some parts in our F330, and ended up only putting 2 of the 4 simms from the NVRAM card back onto the card. What kind of performance does more/less NVRAM have on a filer?
Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO
Lee Razo (lrazo@netapp.com) Network Appliance Europe Hoofddorp, Netherlands
"Very difficult it is to do poetry in this world of constant Denny's being open all night" -Don Van Vliet
Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO
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Lee Razo (lrazo@netapp.com) Network Appliance Europe Hoofddorp, Netherlands
"Very difficult it is to do poetry in this world of constant Denny's being open all night" -Don Van Vliet