Hi all, I am new to Nutanix and am looking for best practices around swap space on Nutanix AHV VMs. Having SSD drives it is understood swap (writes) will decrease hardware life. Can swap be allocated only to HDD drives only and/or is it best to use a low swappiness value to lower the amount of swaps? Thanks,

A Linux best practice is to have your swap on a seperate vdisk from your root of "/" directory. Use LVM and break up your logical volumes as you wish, but I always make sure my swap is on a seperate vdisk from my root. It's meant as a last resort and you don't want the churn from swap taking away from OS performance. The same is true with Windows and your pagefile. The Microsoft best practice is to move your pagefile to a dedicated vdisk. Realistically in terms of ssd and hdd, we've never pinned our swap drives to ssd. You will see decreased performance on hdd, but it's meant as a temporary safety net, not a permanent solution for additional memory. If you did use SSD pinning for swap, I don't see how it would decrease ssd life unless you're constantly living in swap space. You're okay either way. Make sure you've enabled AHV Turbo (multi-queueing). For even better performance. I'll share a link once I'm at a desktop.Hope this helps!

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混合Nutanix集群交换存储器SSD+HDD)

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