What is true about cache dirty page?

The correct answer is A. Data that has changed but is not yet written to disk. Cache Management As cache fills, the storage system must take action to flush dirty pages (data written into the cache but not yet written to the disk) to manage space availability. Flushing is the process that commits data from cache to the disk.

Pre-Checks and Planning

Question

Options

AData that has changed but is not yet written to disk
BData read from disk but not accessed by the host
CData that has changed and has been written to disk
DData requested by the host but not yet fetched

How the community answered

(48 responses)

A
79% (38)
B
2% (1)
C
6% (3)
D
13% (6)

Explanation

Cache Management As cache fills, the storage system must take action to flush dirty pages (data written into the cache but not yet written to the disk) to manage space availability. Flushing is the process that commits data from cache to the disk.

Topics

#cache dirty page#write cache#data consistency#storage cache

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