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long options for ztest
This change introduces long options for ztest. It builds the usage message as well as the long_options array from a single table. It also adds #defines for the default values. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Manoj Joseph <manoj.joseph@delphix.com> Closes #12117
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Manoj Joseph
+51
-31
@@ -63,93 +63,113 @@ can re-use these files in your next \fBztest\fR run by using the -E
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option.
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.SH OPTIONS
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.HP
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.BI "\-?" ""
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.BR "\-h, -?, --help"
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.IP
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Print a help summary.
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.HP
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.BI "\-v" " vdevs" " (default: 5)
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.BR "\-v, --vdevs=" " (default: 5)
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.IP
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Number of vdevs.
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.HP
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.BI "\-s" " size_of_each_vdev" " (default: 64M)"
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.BR "\-s, --vdev-size=" " (default: 64M)"
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.IP
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Size of each vdev.
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.HP
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.BI "\-a" " alignment_shift" " (default: 9) (use 0 for random)"
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.BR "\-a, --alignment-shift=" " (default: 9) (use 0 for random)"
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.IP
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Used alignment in test.
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Alignment shift used in test.
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.HP
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.BI "\-m" " mirror_copies" " (default: 2)"
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.BR "\-m, --mirror-copies=" " (default: 2)"
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.IP
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Number of mirror copies.
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.HP
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.BI "\-r" " raidz_disks / draid_disks" " (default: 4 / 16)"
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.BR "\-r, --raid-disks=" " (default: 4 for raidz/ 16 for draid)"
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.IP
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Number of raidz disks.
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Number of raidz/draid disks.
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.HP
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.BI "\-R" " raid_parity" " (default: 1)"
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.BR "\-R, --raid-parity=" " (default: 1)"
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.IP
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Raid parity (raidz & draid).
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.HP
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.BI "\-K" " raid_kind" " (default: 'random') raidz|draid|random"
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.BR "\-K, --raid-kind=" " (default: 'random') raidz|draid|random"
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.IP
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The kind of RAID config to use. With 'random' the kind alternates between raidz and draid.
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.HP
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.BI "\-D" " draid_data" " (default: 4)"
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.BR "\-D, --draid-data=" " (default: 4)"
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.IP
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Number of data disks in a dRAID redundancy group.
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.HP
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.BI "\-S" " draid_spares" " (default: 1)"
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.BR "\-S, --draid-spares=" " (default: 1)"
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.IP
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Number of dRAID distributed spare disks.
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.HP
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.BI "\-C" " vdev_class_state" " (default: random)"
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.IP
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The vdev allocation class state: special=on|off|random.
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.HP
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.BI "\-d" " datasets" " (default: 7)"
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.BR "\-d, --datasets=" " (default: 7)"
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.IP
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Number of datasets.
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.HP
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.BI "\-t" " threads" " (default: 23)"
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.BR "\-t, --threads=" " (default: 23)"
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.IP
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Number of threads.
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.HP
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.BI "\-g" " gang_block_threshold" " (default: 32K)"
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.BR "\-g, --gang-block-threshold=" " (default: 32K)"
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.IP
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Gang block threshold.
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.HP
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.BI "\-i" " initialize_pool_i_times" " (default: 1)"
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.BR "\-i, --init-count=" " (default: 1)"
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.IP
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Number of pool initialisations.
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Number of pool initializations.
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.HP
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.BI "\-k" " kill_percentage" " (default: 70%)"
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.BR "\-k, --kill-percentage=" " (default: 70%)"
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.IP
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Kill percentage.
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.HP
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.BI "\-p" " pool_name" " (default: ztest)"
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.BR "\-p, --pool-name=" " (default: ztest)"
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.IP
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Pool name.
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.HP
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.BI "\-V(erbose)"
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.BR "\-f, --vdev-file-directory=" " (default: /tmp)"
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.IP
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Verbose (use multiple times for ever more blather).
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File directory for vdev files.
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.HP
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.BI "\-E(xisting)"
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.BR "\-M, --multi-host"
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.IP
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Multi-host; simulate pool imported on remote host.
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.HP
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.BR "\-E, --use-existing-pool"
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.IP
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Use existing pool (use existing pool instead of creating new one).
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.HP
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.BI "\-T" " time" " (default: 300 sec)"
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.BR "\-T, --run-time=" " (default: 300 sec)"
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.IP
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Total test run time.
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.HP
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.BI "\-z" " zil_failure_rate" " (default: fail every 2^5 allocs)
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.BR "\-P, --pass-time=" " (default: 60 sec)"
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.IP
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Injected failure rate.
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Time per pass.
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.HP
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.BI "\-G"
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.BR "\-F, --freeze-loops=" " (default: 50)"
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.IP
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Dump zfs_dbgmsg buffer before exiting.
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Max loops in spa_freeze().
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.HP
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.BR "\-B, --alt-ztest="
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.IP
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Alternate ztest path.
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.HP
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.BR "\-C, --vdev-class-state=on|off|random" " (default: random)"
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.IP
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The vdev allocation class state.
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.HP
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.BR "\-o, --option="
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.IP
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Set global variable to an unsigned 32-bit integer value.
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.HP
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.BR "\-G, --dump-debug"
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.IP
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Dump zfs_dbgmsg buffer before exiting due to an error.
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.HP
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.BR "\-V, --verbose"
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.IP
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Verbose (use multiple times for ever more verbosity).
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.SH "EXAMPLES"
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.LP
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To override /tmp as your location for block files, you can use the -f
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