3 November 2022

State of Advanced Contextual Report 2022

In Whitepaper2 Minutes

Asm Health Checker Found 1 New Failures Updated -

Run the following SQL query within the SQL*Plus environment of the affected ASM instance to identify the disk group's operational mode:

Intermittent loss of connectivity to the SAN/LUNs causes heartbeat timeout warnings (e.g., Waited 15 secs for write IO ).

The Oracle Automatic Storage Management (ASM) Health Checker periodically polls the storage environment's overall health. Below are the most common scenarios that trigger this alert: asm health checker found 1 new failures updated

Too many offline disks in the PST disable the read quorum, triggering a forced dismount.

Instant Fix for Oracle ASM Disk Failures When this error appears in the ASM alert log, it is usually preceded by underlying I/O dropouts or timeout warnings. This requires immediate DBA intervention to prevent data loss or complete cluster eviction. 🛠️ Root Causes of the ASM Failure Alert Run the following SQL query within the SQL*Plus

SELECT group_number, name, state, type, total_mb, free_mb FROM v$asm_diskgroup; Use code with caution.

A manual or automatic rebalance may clear the problem if the disk group maintains redundancy. Check the background work status: Instant Fix for Oracle ASM Disk Failures When

# Locate your ASM Alert log using the ADRCI tool adrci> show alert -p "message_text like '%ASM Health Checker%'" Use code with caution. 2. Verify Your Current Disk Group Status

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