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Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #13116
102 lines
3.0 KiB
Groff
102 lines
3.0 KiB
Groff
.\"
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.\" CDDL HEADER START
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.\"
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.\" The contents of this file are subject to the terms of the
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.\" Common Development and Distribution License (the "License").
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.\" You may not use this file except in compliance with the License.
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.\"
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.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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.\" or http://www.opensolaris.org/os/licensing.
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.\" See the License for the specific language governing permissions
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.\" and limitations under the License.
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.\"
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.\" When distributing Covered Code, include this CDDL HEADER in each
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.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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.\" If applicable, add the following below this CDDL HEADER, with the
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.\" fields enclosed by brackets "[]" replaced with your own identifying
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.\" information: Portions Copyright [yyyy] [name of copyright owner]
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.\"
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.\" CDDL HEADER END
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.\"
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.\" Copyright (c) 2016 Gvozden Nešković. All rights reserved.
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.\"
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.Dd May 26, 2021
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.Dt RAIDZ_TEST 1
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.Os
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.
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.Sh NAME
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.Nm raidz_test
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.Nd raidz implementation verification and benchmarking tool
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.Sh SYNOPSIS
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.Nm
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.Op Fl StBevTD
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.Op Fl a Ar ashift
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.Op Fl o Ar zio_off_shift
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.Op Fl d Ar raidz_data_disks
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.Op Fl s Ar zio_size_shift
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.Op Fl r Ar reflow_offset
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.
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.Sh DESCRIPTION
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The purpose of this tool is to run all supported raidz implementation and verify
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the results of all methods.
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It also contains a parameter sweep option where all
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parameters affecting a RAID-Z block are verified (like ashift size, data offset,
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data size, etc.).
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The tool also supports a benchmarking mode using the
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.Fl B
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option.
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.
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.Sh OPTION
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.Bl -tag -width "-B(enchmark)"
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.It Fl h
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Print a help summary.
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.It Fl a Ar ashift Pq default: Sy 9
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Ashift value.
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.It Fl o Ar zio_off_shift Pq default: Sy 0
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ZIO offset for each raidz block.
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The offset's value is
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.Em 2^zio_off_shift .
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.It Fl d Ar raidz_data_disks Pq default: Sy 8
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Number of raidz data disks to use.
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Additional disks will be used for parity.
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.It Fl s Ar zio_size_shift Pq default: Sy 19
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Size of data for raidz block.
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The real size is
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.Em 2^zio_size_shift .
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.It Fl r Ar reflow_offset Pq default: Sy uint max
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Set raidz expansion offset.
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The expanded raidz map allocation function will
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produce different map configurations depending on this value.
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.It Fl S Ns Pq weep
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Sweep parameter space while verifying the raidz implementations.
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This option
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will exhaust all most of valid values for the
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.Fl aods
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options.
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Runtime using this option will be long.
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.It Fl t Ns Pq imeout
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Wall time for sweep test in seconds.
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The actual runtime could be longer.
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.It Fl B Ns Pq enchmark
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All implementations are benchmarked using increasing per disk data size.
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Results are given as throughput per disk, measured in MiB/s.
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.It Fl e Ns Pq xpansion
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Use expanded raidz map allocation function.
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.It Fl v Ns Pq erbose
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Increase verbosity.
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.It Fl T Ns Pq est the test
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Debugging option: fail all tests.
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This is to check if tests would properly verify bit-exactness.
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.It Fl D Ns Pq ebug
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Debugging option: attach
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.Xr gdb 1
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when
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.Sy SIGSEGV
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or
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.Sy SIGABRT
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are received.
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.El
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.
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.Sh "SEE ALSO"
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.Xr ztest 1
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