cloud: add storage usage impact notes for TiKV and TiFlash

[huoyao1125]

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[ti-chi-bot]

Hi @huoyao1125. Thanks for your PR.

I'm waiting for a pingcap member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the clarity and helpfulness of the built-in alerting documentation for TiDB Cloud. By adding more specific details about the consequences of high storage utilization for TiKV and TiFlash, users will have a better understanding of why these alerts are critical and what issues they might indicate.

Highlights

• Documentation Clarity: Enhanced the descriptions for TiKV and TiFlash storage utilization alerts to provide more context on potential impacts like latency spikes and request errors.

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Changelog

• tidb-cloud/monitor-built-in-alerting.md
  • Updated the alert descriptions for TiKV and TiFlash storage utilization to include potential impacts like latency spikes and request errors.

Activity

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[gemini-code-assist]

Code Review

This pull request updates the recommended actions for two storage utilization alerts in monitor-built-in-alerting.md, adding more context about the potential impact of high storage usage. The changes are helpful. I've provided one suggestion to improve the clarity of the new text, in line with the repository's documentation style guide.

[ti-chi-bot]

@nizheming: adding LGTM is restricted to approvers and reviewers in OWNERS files.

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[Oreoxmt]

Rest LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-03-03 03:48:49.91760575 +0000 UTC m=+243574.495684944: ☑️ agreed by Oreoxmt.
• 2026-03-03 04:20:27.744885933 +0000 UTC m=+245472.322965128: ☑️ agreed by hfxsd.

[hfxsd]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hfxsd

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