SSD storage-engine for Aerospike in Docker on a VPS not working

Thank you for clarification-

storage-engine device {
	file /opt/aerospike/data/test.dat
	filesize 4G
	write-block-size 128K
	data-in-memory true
}

One last question, documentation says that for better performance on SSD write-block-size should be 128K, considering that I’m on a VPS with SSD storage and using file configuration should I use write-block-size 128K? I want to avoid OOM problem.

Also with the above file config I am getting the following log warning every 5 secs.

WARNING (hardware): (hardware.c:2262) failed to resolve mounted device /dev/vda1: 2 (No such file or directory)

I read this (High memory usage on Kubernetes GKE using helm chart) discussion but couldn’t find a solution.