The Meaning of Information in TiDB Dashboard

This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tidb dashboard中信息含义

| username: EDG-给我冲

[TiDB Usage Environment] Production Environment
[TiDB Version] 6.5.10
[Encountered Problem: Phenomenon and Impact]
Beginner’s question: In the overview information of the TiDB dashboard, what does the tikv read 1GiBs shown under IO usage mean?
When I use iotop to check disk read and write, they are very small, just a few hundred K or a few M. Why does it show so much here?
Based on this read and write volume, what IOPS should I use for the disk? What is the appropriate throughput?
Is high latency positively correlated with IO usage?

| username: zhaokede | Original post link

See if this helps you:
UI - TiDB Dashboard - “TiDB v8.1 Chinese Documentation” - BookStack

| username: EDG-给我冲 | Original post link

The documentation here is too outdated. It’s completely different now.