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Using transaction entries to achieve crash consistency when performing write-behind caching using a flash storage-based cache
Using transaction entries to achieve crash consistency when performing write-behind caching using a flash storage-based cache
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机译:使用基于闪存的缓存执行写后缓存时,使用事务条目来实现崩溃一致性
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摘要
Techniques for achieving crash consistency when performing write-behind caching using a flash storage-based cache are provided. In one embodiment, a computer system receives from a virtual machine a write request that includes data to be written to a virtual disk and caches the data in a flash storage-based cache. The computer system further logs a transaction entry for the write request in the flash storage-based cache, where the transaction entry includes information usable for flushing the data from the flash storage-based cache to a storage device storing the virtual disk. The computer system then communicates an acknowledgment to the VM indicating that the write request has been successfully processed.
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