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Does ACFS Use inode architecture? (Doc ID 2026700.1)

Last updated on FEBRUARY 24, 2022

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

1) Monitoring a 20TB ACFS filesystem (using "df -i" command) alerted that very few files are using many inodes.

2) Per 'df -i' command, e.g.  Inodes is = 41943040000, IUsed is = 419430400, and IFree is = 41523609600:

 

4) Per 'ls -lR | wc -l' lists just 246 files.

5) It was unclear why 246 files + small number of directories is using 419,430,400  Inodes.

6) Can anything be done to increase # of inodes in ACFS filesystems?


Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
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