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?