Hi Thomas, For every backend (like NFS, Ceph, CIFS, etc, etc) FS-Cache needs a custom module. So in theory it should work with Ceph, but someone would have to write a backend for it. I don't really know what the benefit would be for Ceph, sometimes caching can slow things down rather then speeding up. -- Met vriendelijke groet, Wido den Hollander Hoofd Systeembeheer / CSO Telefoon Support Nederland: 0900 9633 (45 cpm) Telefoon Support België: 0900 70312 (45 cpm) Telefoon Direct: (+31) (0)20 50 60 104 Fax: +31 (0)20 50 60 111 E-mail: support@xxxxxxxxxxxx Website: http://www.pcextreme.nl Kennisbank: http://support.pcextreme.nl/ Netwerkstatus: http://nmc.pcextreme.nl On Wed, 2010-06-09 at 14:55 +0000, Tomasz Chmielewski wrote: > Am 08.06.2010 19:51, Sage Weil wrote: > > On Tue, 8 Jun 2010, Tomasz Chmielewski wrote: > >> I'd like to build a cluster for storing large amounts of data. > >> > >> The cluster would consist of slow (cheap) storage and fast (expensive) > >> storage. > >> > >> I would like to migrate data from fast (expensive) storage to slow (cheap) > >> storage if it wasn't accessed for, say, 6 months. > >> > >> Would ceph somehow help me achieve that? > > > > We don't currently have that functionality. In principle it's certainly > > something the system could do, and the underlying storage architecture > > lends itself to that: > > Hmm, since quite recently, Linux kernel has FS-Cache, which: > > This facility is a general purpose cache for network > filesystems, though it could be used for caching other things > such as ISO9660 filesystems too. > > > I wonder if it could work with ceph and/or traditional filesystems, too? > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
