The disk group has dropped offline. This indicates a loss of disk quorum. 3. Check for Ongoing Rebalance Operations
Slow response times from the storage subsystem cause the Oracle ASM instance to drop the impacted disks. asm health checker found 1 new failures updated
The disk group is normal; the issue might be confined to a single disk. The disk group has dropped offline
Re-scans, OS reboots, or sector size changes ( ORA-15085 ) on the SAN break the shared storage layer. 📋 Comprehensive Troubleshooting Guide Check for Ongoing Rebalance Operations Slow response times
# 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
Before making any changes, retrieve the trace file that corresponds to the background error. Look for lines right above the alert in your ASM alert log to identify the specific RBAL or GMON background trace file.