只是关于在节点（在新的同质群集中）中SSD容量尺寸的HDD容量尺寸的快速问题。当在节点中指定驱动空间时，最低节点的SSD百分比是多少。有没有人可以指向我的最佳实践指南？我不是在询问HDDS的数量与SSD的数量。
问题是关于容量，而不是数字或驱动器。例如我配置了一个带有4TB的SSD（2x1.92tb）和60TB HDD（10 x 6tb）的节点，而Nutanix Sizer表示这很好。这大约是6.25％的SSD，但是我应该拥有的混合节点的最低SSD容量是6％，还是应该更像是10％或20％（或更多）？
最好的答案谢尔盖·伊万诺夫（Sergei Ivanov）
The problem there may possibly be with the performance of the cluster. It will greatly depend on what kind of workload you run there. If you want to run OLTP databases or any heavy IOPS workload with low latency expectations, it might be a good idea to size more SSD. If you plan to have a lot of cold data and latency is not that important, smaller SSD tier size will do. We generally recommend to never size the SSD tier below 10% of the total capacity, but overall the higher SSD ratio, the better performance you will get.<\/p>
You should also check your working set size and it should fit into the SSD tier. Check with the application owners how much new data\u00a0do their applications write per day. You can also check the incremental backup sizes. Incremental daily backups will have the data from the last day only, so it will provide some indication of how much new data is generated daily. Aim to make sure that the working set will fit into the 75% of the SSD tier and don\u2019t forget about the RF2\/RF3. And of course leave some free space for the future growth.<\/p>","className":"post__content__best_answer"}">
