Linux Filesystem Testing Tools

Filesystems:
 

Bonnie	Bonnie++ is test suite, which performs several hard drive/ filesystem tests.
dbench	Filesystem benchmark that generates good filesystem load
fs_inode	Part of the LTP: This test creates several subdirectories and files off of two parent directories and removes directories and files as part of the test.
fs_maim	Part of the LTP: a set of scripts to test and stress filesystem and storage management utilities
IOZone	Filesystem benchmark tool (read, write, re-read, re-write, read backwards, read strided, fread, fwrite, random read, pread, aio_read, aio_write)
lftest	Part of the LTP:lftest is a tool/test designed to create large files and lseek from the beginning of the file to the end of the file after each block write. This test verifies large file support and can be used to generate large files for other filesystem tests.	Files up to 2Tb have been created using this tool. This test is VERY picky about glibc version.
LTP	The Linux Test Project is a collection of tools for testing the Linux kernel and related features.
PostMark	Filesystem benchmark that simulates load generated by enterprise applications such as email, news and web-based commerce.
stress	puts the system under a specified amount of load
mongo	set of the programs to test linux filesystems for performance and functionality
fsx	File system exerciser from Apple.	The test is most effective if you let it run for a minute or two, so that it overlaps the periodic sync that most Unix systems do.
xdd	Storage I/O Performance Characterization tool that runs on most UNIX-like systems and Windows.	Has been around since 1992 and is in use at various government labs.