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We can change the size of the ACFS file system online without requiring any umount or disable volume. We use the acfsutil tool for this.
For operations, the corresponding volume must be enabled and the file system must be mounted.
We do this with the root user.
To increase the size:
1 2 | bash-4.3# /usr/sbin/acfsutil size +500G /u01/backup acfsutil size: new file system size: 2735894167552 (2609152MB) |
To decrease the size:
1 2 | bash-4.3# /usr/sbin/acfsutil size -50G /u01/backup acfsutil size: new file system size: 2682207076352 (2557952MB) |
For information about ACFS, I suggest you read the article “How To Install ACFS (ASM Cluster File System) driver on RAC Database Servers“.
