Has an adjustable read and write disk cache for improved disk throughput.
However, unflushed changes to the file system are nevertheless lost, as the disk cache is typically stored in volatile memory.
On low-memory systems, the disk cache can be disabled altogether or set to smaller limit, to save memory.
The buffer is then moved into the disk cache without being copied.
It uses almost all the extra RAM as disk cache.
ZFS uses different layers of disk cache to speed up read and write operations.
A more efficient recommendation is to have a disk cache attached to the jukebox for a higher number of simultaneous users.
A disk cache uses a hard disk as a backing store, for example.
These are sometimes called "disk cache", but this is wrong.
A page cache or disk cache is a buffer of pages certain operating systems keep in memory.