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27 lines
993 B
27 lines
993 B
.. SPDX-License-Identifier: GPL-2.0 |
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====================================== |
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Linux SCSI Disk Driver (sd) Parameters |
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====================================== |
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cache_type (RW) |
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--------------- |
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Enable/disable drive write & read cache. |
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=========================== === === =========== ========== |
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cache_type string WCE RCD Write cache Read cache |
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=========================== === === =========== ========== |
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write through 0 0 off on |
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none 0 1 off off |
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write back 1 0 on on |
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write back, no read (daft) 1 1 on off |
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=========================== === === =========== ========== |
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To set cache type to "write back" and save this setting to the drive:: |
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# echo "write back" > cache_type |
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To modify the caching mode without making the change persistent, prepend |
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"temporary " to the cache type string. E.g.:: |
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# echo "temporary write back" > cache_type
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