VDT (Visual Disk Test) performs various I/O tests on files and devices such as whole hard disks, partitions, and logical volumes. It provides visual feedback on screen while offering a broad selection of addressing methods and test area selection.
This version implements stress tests for copy and comparison. It also has an updated 'makefile' and 'configure' in order to provide clean builds on HP-UX with the HP standard ANSI C compiler, and AIX 5 as well.
This version brings over 15 improvements. Among them are the "--daze" option that enables full buffer and file random pattern filling, the "--part" option to report alternate buffer size statistics, the "--bias" option to skip possibly cached blocks, hardened command-line parameter parsing, better signal and error descriptions, the "-Z" option to limit test duration by size transferred, the "-D" option to end tests at a given date and time, fixed Solaris configuration phase and manual page installation, and choice of random cache hit illustration.
This version implements an option (-M) to limit the number of "passes" per test when the "wrap" and "time" flags are selected. It also brings improvements to the documentation (README, man-page, and usage-help), as well as a bugfix related to the combination of the time-limit flag with the "slab" region selection.
This version implements a "poke" test, enhanced log and on-screen information, and the ability to produce a partial report upon interruption. It also enables the proper combination of the "--uniq" and "--perc" flags. This version includes the option to pass the elapsed time limit to the "-t" flag in the form of "hh:mm:ss". The validation test has been enlarged to include a broader set of features and flag combinations. This version has been tested to be stable on AIX 5-6, Solaris 8-10, Linux, HP-UX 11, BSD, and CygWin.
This version implements an option (-P) to provide a 'bit pattern' that will be used to fill the output buffer. This version also includes a 'force flag' (-F) to allow overwriting of existing files on the 'make' test. This version was tested and validated 'Stable' on Solaris 10, AIX 6, HP-UX 11.31, and CentOS 5.4.
CentOs, Linux, HP-UX, AIX, Solaris, Stable, force flag, pattern