To modify  vm.min_free_kbytes , complete the following steps: #free -k The IBM Spectrum Scale default maximum number of inodes is fine for most configurations.  However, for large systems that might have millions of files or more, the maximum number of  inodes to set at file system creation time might need to be changed or increased after file  system creation time. The maximum number of inodes must be larger than the expected sum  of files and file system objects being managed by IBM Spectrum Archive EE (including the  IBM Spectrum Archive EE metadata files if there is only one GPFS file system). Inodes are allocated when they are used. When a file is deleted, the inode is reused, but  inodes are never deallocated. When setting the maximum number of inodes in a file system,  there is an option to preallocate inodes. However, in most cases there is no need to  preallocate inodes because by default inodes are allocated in sets as needed.  8.8 Increasing the default maximum number of inodes in IBM  Spectrum Scale 1. Check the total memory of the system by running the following command: 2. Calculate 5-6% of the total memory in KB with a max of 2000000. 3. Add  vm.min_free_kbytes = <value from step 2>  to the  /etc/sysctl.conf  file. 4. Run  sysctl -p /etc/sysctl.conf  to permanently set the value. 1. For file systems that are supporting parallel file creates, as the total number of free inodes  drops below 5% of the total number of inodes, there is the potential for slowdown in the file  system access. Take this situation into consideration when creating or changing your file  system. 2. Excessively increasing the value for the maximum number of files might cause the  allocation of too much disk space for control structures. If you do decide to preallocate inodes, be careful not to preallocate more inodes than will be  used. Otherwise, the allocated inodes unnecessarily consume metadata space that cannot  be reclaimed. Further considerations when managing inodes: To view the current number of used inodes, number of free inodes, and maximum number of  inodes, run the following command: mmdf Device To set the maximum inode limit for the file system, run the following command: mmchfs Device --inode-limit MaxNumInodes[:NumInodesToPreallocate] 234  IBM Spectrum Archive Enterprise Edition V1.2.6: Installation and Configuration Guide