First, flashcache is unfriendly to sequential-write. Second, it use hash data structure to distributed IO requests at beginning, which will split the cache data in multi-tenant environment. Bcache use B-tree instead of hash-table to store data, it’s better for our requirements.
FlashCache. a fixed size high performant in memory cache. Fixed size, everything is done in memory, so control over maximum size is needed to prevent out of memory errors ONTAP Data Management Software | NetApp Merge new levels of simplicity and flexibility with NetApp ONTAP management software. Simplify your hybrid cloud and unify your data. Test-drive ONTAP management software today. Exadata: DROP FLASHCACHE MAY FAIL IF THE FLASH DISKS …
Sep 26, 2016
First, studies on FlashCache, Mercury, and vSphere flash read cache [21] [22][23] demonstrated that the adoption of flash caches in the data center is effective. Several studies about flash cache
flashcache | Robin on Linux
Make your RBD fly with flashcache | Sébastien Han R Note: flashcache puts a ‘lock‘ on the underneath block device, so basically it’s not possible to use our RBD device while flashcache is operating. II.2.2. Quick admin guide II.2.2.1. Stop the flashcache device. Here is how to stop the flashcache device: (PDF) The Effect of Flashcache and Bcache on I/O Performance Flashcache and Bcache are Linux kernel modules which implement caching of SATA/SAS hard drive data on SSDs, effectively allowing one to create hybrid SSD drives using software. In this paper, we