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I use Zabbix agent to monitor my Linux servers. I start to receive this alarm: sdb: Disk read/write request responses are too high (read > 20 ms for 15m or write > 20 ms for 15m)

incident expression:
{server03:vfs.dev.read.await[sdb].min(15m)} > 20 or {server03:vfs.dev.write.await[sdb].min(15m)} > 20

How can I troubleshoot this alarm and check which process is stuck my disk?

fred_m
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  • What kind of disk is it? Do you have *heavy* disk workloads? What's the smart data for the disk showing? – vidarlo Aug 12 '22 at 20:35

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