Error
Error Code: ACFS-01164

Oracle Database Error ACFS-01164: Device Already in Use

📦 Oracle Database
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Description

This error occurs when attempting to create, mount, or configure an Oracle ASM Cluster File System (ACFS) on a storage device that is already recognized and managed by Oracle Clusterware (CRS) as part of an existing file system. It indicates a conflict where the specified device is not available for the intended operation because it's actively in use by another CRS-managed resource.
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Error Message

The specified device ' string ' is already in use with a CRS-managed file system.
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Known Causes

3 known causes
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Device Already in Use by ACFS
The specified storage device or partition is currently being used by another Oracle ACFS file system that is managed by Oracle Clusterware.
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Incorrect Device Path Specified
The path or name provided for the storage device is inaccurate, leading to an attempt to use a device already assigned to a CRS-managed resource.
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Stale CRS Resource Entry
A previous ACFS file system on the device might have been unmounted or deleted, but its associated CRS resource was not properly de-registered, making the device appear still in use.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service