Is SSD required?

[elpsycongroo]

When deploying Milvus core components (nodes&coords) on Kubernetes without using SSDs, what aspects of performance might be impacted?

[yhmo]

The hardware/software requirement of milvus:
https://milvus.io/docs/prerequisite-docker.md
https://milvus.io/docs/prerequisite-helm.md

It mentioned etcd requires high-speed disk:
https://milvus.io/docs/prerequisite-docker.md#Additional-disk-requirements

If you use DISKANN index type, it also requires high-speed disk:
https://milvus.io/docs/disk_index.md#On-disk-Index

And, sometimes you need to query and return vector data or scalar fields data. Since query node only loads index, the original data is on-disk, query node need to read the original data from storage. In this case, mmap will help improving performance, mmap requires high-speed disk:
https://milvus.io/docs/mmap.md#MMap-enabled-Data-Storage

[xiaofan-luan]

When deploying Milvus core components (nodes&coords) on Kubernetes without using SSDs, what aspects of performance might be impacted?

SSD is required for etcd.

Fro the rest of the component, let's based on whether you need. to enable features like mmap and diskann