F20 System Wide Change: SSD cache

[Jaroslav Reznik]

= Proposed System Wide Change: SSD cache =
https://fedoraproject.org/wiki/Changes/SSD_cache

Change owner(s): Rolf Fokkens <rolf at rolffokkens.nl>

Using recent kernel (3.9 and later) features for (fast) SSD caching of (slow) 
ordinary hard disks. 

== Detailed description ==
Recent Linux kernels support the use of Solid State Drives as caches for 
rotational hard disks. Because the high cost per GB for SSD devices this 
feature may bring the best of both: fast end big yet affordable storage 
capacity. Linux kernel 3.9 introduced dm-cache, kernel 3.10 introduces bcache.

== Scope ==
Proposal owners: Enable caching features in new kernels 

Other developers: Support the caching features in their respective packages. 
Special focus should be on making the system boot from a cached root FS. 

Release engineering: All packages should operate in close harmony te make this 
work. Only a rebuild of the relevant packages is required. 

Policies and guidelines: No changes I think. 
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