JFS file systems can be created with mkfs on any EVMS or compatibility volume (at least 16 MB in size) that does not already have a file system. The following options are available for creating JFS file systems:
- badblocks
Perform a read-only check for bad blocks on the volume before creating the file system. The default is false.
- caseinsensitive
Mark the file system as case-insensitive (for OS/2 compatibility). The default is false.
- vollabel
Specify a volume label for the file system. The default is none.
- journalvol
Specify the volume to use for an external journal. This option is only available with version 1.0.20 or later of the JFS utilities. The default is none.
- logsize
Specify the inline log size (in MB). This option is only available if the journalvol option is not set. The default is 0.4% of the size of the volume up to 32 MB.