Content-type: text/html Manpage of raidz_test

raidz_test

Section: User Commands (1)
Updated: 2016
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NAME

raidz_test - raidz implementation verification and benchmarking tool

SYNOPSIS

raidz_test <options>

DESCRIPTION

This manual page documents briefly the raidz_test command.

Purpose of this tool is to run all supported raidz implementation and verify results of all methods. Tool also contains a parameter sweep option where all parameters affecting RAIDZ block are verified (like ashift size, data offset, data size, etc...). The tool also supports a benchmarking mode using -B option.

OPTION

-h
: Print a help summary.
-a ashift (default: 9)
: Ashift value.
-o zio_off_shift (default: 0)
: Zio offset for raidz block. Offset value is 1 << (zio_off_shift)
-d raidz_data_disks (default: 8)
: Number of raidz data disks to use. Additional disks for parity will be used during testing.
-s zio_size_shift (default: 19)
: Size of data for raidz block. Size is 1 << (zio_size_shift).
-S(weep)
: Sweep parameter space while verifying the raidz implementations. This option will exhaust all most of valid values for -a -o -d -s options. Runtime using this option will be long.
-t(imeout)
: Wall time for sweep test in seconds. The actual runtime could be longer.
-B(enchmark)
: This options starts the benchmark mode. All implementations are benchmarked using increasing per disk data size. Results are given as throughput per disk, measured in MiB/s.
-v(erbose)
: Increase verbosity.
-T(est the test)
: Debugging option. When this option is specified tool is supposed to fail all tests. This is to check if tests would properly verify bit-exactness.
-D(ebug)
: Debugging option. Specify to attach gdb when SIGSEGV or SIGABRT are received.

AUTHORS

vdev_raidz, created for ZFS on Linux by Gvozden Nešković <neskovic@gmail.com>

This document was created by man2html, using the manual pages.
Time: 21:41:20 GMT, October 05, 2020