Unit Instance

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{
    "translation": "https://translate-dev.freebsd.org/api/translations/freebsd-doc/boooks_handbook/en/?format=api",
    "source": [
        "<emphasis><varname>vfs.zfs.scrub_delay</varname></emphasis> - Number of ticks to delay between each I/O during a <link linkend=\"zfs-term-scrub\"><command>scrub</command></link>. To ensure that a <command>scrub</command> does not interfere with the normal operation of the pool, if any other <acronym>I/O</acronym> is happening the <command>scrub</command> will delay between each command. This value controls the limit on the total <acronym>IOPS</acronym> (I/Os Per Second) generated by the <command>scrub</command>. The granularity of the setting is determined by the value of <varname>kern.hz</varname> which defaults to 1000 ticks per second. This setting may be changed, resulting in a different effective <acronym>IOPS</acronym> limit. The default value is <literal>4</literal>, resulting in a limit of: 1000 ticks/sec / 4 = 250 <acronym>IOPS</acronym>. Using a value of <replaceable>20</replaceable> would give a limit of: 1000 ticks/sec / 20 = 50 <acronym>IOPS</acronym>. The speed of <command>scrub</command> is only limited when there has been recent activity on the pool, as determined by <link linkend=\"zfs-advanced-tuning-scan_idle\"><varname>vfs.zfs.scan_idle</varname></link>. This value can be adjusted at any time with <citerefentry><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>."
    ],
    "previous_source": "",
    "target": [
        "<emphasis><varname>vfs.zfs.scrub_delay</varname></emphasis> - Number of ticks to delay between each I/O during a <link linkend=\"zfs-term-scrub\"><command>scrub</command></link>. To ensure that a <command>scrub</command> does not interfere with the normal operation of the pool, if any other <acronym>I/O</acronym> is happening the <command>scrub</command> will delay between each command. This value controls the limit on the total <acronym>IOPS</acronym> (I/Os Per Second) generated by the <command>scrub</command>. The granularity of the setting is determined by the value of <varname>kern.hz</varname> which defaults to 1000 ticks per second. This setting may be changed, resulting in a different effective <acronym>IOPS</acronym> limit. The default value is <literal>4</literal>, resulting in a limit of: 1000 ticks/sec / 4 = 250 <acronym>IOPS</acronym>. Using a value of <replaceable>20</replaceable> would give a limit of: 1000 ticks/sec / 20 = 50 <acronym>IOPS</acronym>. The speed of <command>scrub</command> is only limited when there has been recent activity on the pool, as determined by <link linkend=\"zfs-advanced-tuning-scan_idle\"><varname>vfs.zfs.scan_idle</varname></link>. This value can be adjusted at any time with <citerefentry><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>."
    ],
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    "location": "book.translate.xml:42661",
    "context": "",
    "note": "(itstool) path: listitem/para\n(itstool) id: book.translate.xml#zfs-advanced-tuning-scrub_delay",
    "flags": "",
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    "position": 6987,
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    "has_comment": false,
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    "num_words": 154,
    "source_unit": "https://translate-dev.freebsd.org/api/units/157901/?format=api",
    "priority": 100,
    "id": 157901,
    "web_url": "https://translate-dev.freebsd.org/translate/freebsd-doc/boooks_handbook/en/?checksum=4c11b23dbda005a4",
    "url": "https://translate-dev.freebsd.org/api/units/157901/?format=api",
    "explanation": "",
    "extra_flags": "",
    "pending": false,
    "timestamp": "2020-04-18T18:15:42.168669Z"
}