Posted Dec 26, 2008 21:16 UTC (Fri) by zdzichu (subscriber, #17118)
Parent article: Justifying FS-Cache
The beatiful example of this second level caching is available in other opearting system for over a year. Imagine caching content from local HDD in insanely fast (hundreds of MB/s) Intel SSD. Using FS-cache, all linux filesystem could gain feature known as L2ARC in ZFS.
(the second interesting ZFS feature, separate intent log, we already have in the form of external journal device in ext3/4).