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Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Chris Dunlop <chris@onthe.net.au> Signed-off-by: Peter Wirdemo <peter.wirdemo@gmail.com> Closes #8855
98 lines
2.9 KiB
Groff
98 lines
2.9 KiB
Groff
'\" t
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.\"
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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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.\"
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.\" Copyright (c) 2016 Gvozden Nešković. All rights reserved.
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.\"
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.TH raidz_test 1 "2016" "ZFS on Linux" "User Commands"
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.SH NAME
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\fBraidz_test\fR \- raidz implementation verification and benchmarking tool
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.SH SYNOPSIS
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.LP
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.BI "raidz_test <options>"
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.SH DESCRIPTION
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.LP
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This manual page documents briefly the \fBraidz_test\fR command.
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.LP
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Purpose of this tool is to run all supported raidz implementation and verify
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results of all methods. Tool also contains a parameter sweep option where all
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parameters affecting RAIDZ 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 -B option.
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.SH OPTION
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.HP
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.BI "\-h" ""
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.IP
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Print a help summary.
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.HP
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.BI "\-a" " ashift (default: 9)"
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.IP
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Ashift value.
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.HP
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.BI "\-o" " zio_off_shift" " (default: 0)"
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.IP
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Zio offset for raidz block. Offset value is 1 << (zio_off_shift)
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.HP
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.BI "\-d" " raidz_data_disks" " (default: 8)"
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.IP
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Number of raidz data disks to use. Additional disks for parity will be used
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during testing.
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.HP
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.BI "\-s" " zio_size_shift" " (default: 19)"
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.IP
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Size of data for raidz block. Size is 1 << (zio_size_shift).
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.HP
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.BI "\-S(weep)"
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.IP
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Sweep parameter space while verifying the raidz implementations. This option
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will exhaust all most of valid values for -a -o -d -s options. Runtime using
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this option will be long.
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.HP
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.BI "\-t(imeout)"
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.IP
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Wall time for sweep test in seconds. The actual runtime could be longer.
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.HP
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.BI "\-B(enchmark)"
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.IP
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This options starts the benchmark mode. All implementations are benchmarked
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using increasing per disk data size. Results are given as throughput per disk,
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measured in MiB/s.
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.HP
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.BI "\-v(erbose)"
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.IP
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Increase verbosity.
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.HP
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.BI "\-T(est the test)"
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.IP
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Debugging option. When this option is specified tool is supposed to fail
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all tests. This is to check if tests would properly verify bit-exactness.
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.HP
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.BI "\-D(ebug)"
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.IP
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Debugging option. Specify to attach gdb when SIGSEGV or SIGABRT are received.
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.HP
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.SH "SEE ALSO"
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.BR "ztest (1)"
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.SH "AUTHORS"
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vdev_raidz, created for ZFS on Linux by Gvozden Nešković <neskovic@gmail.com>
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