JFS file system
JFS (Journaled File System) a 64-bit journaling filesystem for Linux. It was created by IBM for its AIX OS and OS/2. The OS/2 version was later rewritten for Linux.
JFS is supported by Linux since the the kernel version 2.4.18pre9-ac4. It is considered to be a fast and reliable file system,
This file system supports filenams of up to 255 bytes, files of up to 4 PB and file systems of up to 32 PB (1 PB is 1000 TB).