How to enable L2 cache to accelerate writing

    Since version 3.0, L2 cache is able to accelerate disk writing. However, in order to reduce the write wear on the L2 device, by default, the L2 cache is set to only accelerate disk reading. If you want to enable L2 cache to accelerate writing, please modify the default settings as follows:

    1. In the cache configuration dialog, click the Advanced Level-2 Cache Options button.


    2. If you want the read cache and write cache to share the entire L2 cache space, uncheck the "Individual Read/Write Cache Space" option. Otherwise, move the slider to set the required write cache space size. Note that you cannot set the write cache ratio to 0%, as this means that the L2 cache is only used as a read cache.

    Now, L2 cache can speed up disk writing. Of course, you must enable Defer-Write at the same time, otherwise it will not improve the disk write performance.

    NOTE:
    For an L2 drive to provide write caching, the logical sector size of the drive being accelerated must not be smaller than that of the L2 drive itself. Therefore, a native 4K L2 drive cannot support write caching for a 512n or 512e drive.
    Tags
    cache-faq cache-config L2-cache defer-write
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