= Proposed Self Contained Change: LVM Cache Logical Volumes = https://fedoraproject.org/wiki/Changes/Cache_Logical_Volumes
Change owner(s): Alasdair G. Kergon <a...@redhat.com>, David Cantrell <dcant...@redhat.com>, Dave Lehman <dleh...@fedoraproject.org> LVM can now use fast block devices (e.g. SSDs and PCIe Flash) to improve the performance of larger but slower block devices. These hierarchical or layered logical volumes are called Cache Logical Volumes in LVM. == Detailed Description == LVM is now capable of using fast block devices (e.g. SSDs) as write-back or write-though caches for larger slower block devices. Users can create cache logical volumes to improve the performance of their existing logical volumes or create new cache logical volumes composed of a small and fast device coupled with a large and slow device. These cache logical volumes can be used with most LVM segment types, including RAID 1/4/5/6/10, linear, stripe and thin pools. == Scope == * Proposal owners: The LVM team must deliver the lvm2 package implementing cache LV (already included in release 2.02.106) * Other developers: N/A (not a System Wide Change) The Anaconda team must develop a UI for configuring cache LVs during installation. If Anaconda support is not provided, users will have to configure cache LVs after installation or by dropping into a command line. Also, Anaconda could fail if installing a new OS onto an existing cache LV if support is not provided. Anaconda team signed as co-owners of this Change. The dracut team must provide boot support. If dracut does not provide support, cache LVs will not be usable as root devices. * Release engineering: N/A (not a System Wide Change) * Policies and guidelines: N/A (not a System Wide Change) _______________________________________________ devel-announce mailing list devel-announce@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel-announce
