39 lines
1.2 KiB
ReStructuredText
39 lines
1.2 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
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.. include:: ../disclaimer-zh_CN.rst
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:Original: Documentation/scsi/sd-parameters.rst
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:翻译:
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郝栋栋 doubled <doubled@leap-io-kernel.com>
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:校译:
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============================
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Linux SCSI磁盘驱动（sd）参数
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============================
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缓存类型（读/写）
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------------------
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启用/禁用驱动器读写缓存。
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=========================== ===== ===== ======= =======
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缓存类型字符串 WCE RCD 写缓存 读缓存
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=========================== ===== ===== ======= =======
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write through 0 0 关闭 开启
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none 0 1 关闭 关闭
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write back 1 0 开启 开启
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write back, no read (daft) 1 1 开启 关闭
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=========================== ===== ===== ======= =======
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将缓存类型设置为“write back”并将该设置保存到驱动器::
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# echo "write back" > cache_type
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如果要修改缓存模式但不使更改持久化，可在缓存类型字符串前
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添加“temporary ”。例如::
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# echo "temporary write back" > cache_type
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