Hallo Mike, > This is also have another way. > * for CONF 2,3 replace 200Gb SSD to 800Gb and add another 1-2 SSD to > each node. > * make tier1 read-write cache on SSDs > * also you can add journal partition on them if you wish - then data > will moving from SSD to SSD before let down on HDD > * on HDD you can make erasure pool or replica pool
Do you have some experience (performance ?) with SSD as caching tier1? Maybe some small benchmarks? From the mailing list, I "feel" that SSD-tearing is not much used in productive. regards Danny
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