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Why do you think consumer disks are better for a search engine? Everything is a balance between CPU/RAM/Disk. Having one of this resource that is far superior
by jlemoine 13y ago
Why do you think consumer disks are better for a search engine?
Everything is a balance between CPU/RAM/Disk. Having one of this resource that is far superior than the other would be a waste of resource. Our balance is globally to have about 16 cores/32threads per host with latest XEON >= 3.5Ghz, 256G of RAM and about 1TB of SSD (2X512G)
We perform a lot of IO, so the compromise is between price and number of IOPS we can get. Having the same IOPS than our two SSD in raid0, would require a lot of consumer disk, which leads to two problems:
1) We would have too many disk space and we will not have enough CPU to use all this space
2) It would not fit in a 1U server and would increase a lot the price of the server
- gabriel34 13y agoI was thinking more of an architecture comprising either: 1. more servers with less capacity (CPU,RAM,Disk) each 2. same number of servers, but six + Hard Drive Raid0 in each Both of which could be better for other apps but include their own set of problems and, as you pointed out, could result in higher costs. I think I was misunderstood. I was not questioning the architecture chosen, sorry if I sounded that way. I want to learn why was it chosen since I don't see many like it. So far you have provided me with some very satisfying answers, and for that I thank you.