Hi, could you elaborate what you mean with "re-layout"? Thanks, Manuel On Tue, Jul 20, 2021 at 10:36 PM Nathan Fish <lordcirth@xxxxxxxxx> wrote: > You are welcome! Just realized I didn't CC the list properly. > > On Tue, Jul 20, 2021 at 12:18 PM huxiaoyu@xxxxxxxxxxxx > <huxiaoyu@xxxxxxxxxxxx> wrote: > > > > Hi, Nathan, > > > > thanks a lot for the suggestions. Indeed it looks quite feasible with > re-layout > > > > best regards, > > > > samuel > > > > ________________________________ > > huxiaoyu@xxxxxxxxxxxx > > > > > > From: Nathan Fish > > Date: 2021-07-20 00:42 > > To: huxiaoyu@xxxxxxxxxxxx > > Subject: Re: How to make CephFS a tiered file system? > > https://docs.ceph.com/en/latest/cephfs/file-layouts/ > > > > Make a fast pool and a slow pool, set the fast pool as the default > > layout at the top level, then have a job look for old files and > > re-layout them? Should work. > > > > On Mon, Jul 19, 2021 at 5:28 PM huxiaoyu@xxxxxxxxxxxx > > <huxiaoyu@xxxxxxxxxxxx> wrote: > > > > > > Dear Cepher, > > > > > > I have a requirement to use CephFS as a tiered file system, i.e. the > data will be first stored onto an all-flash pool (using SSD OSDs), and then > automatically moved to an EC coded pool (using HDD OSDs) according to > threshold on file creation time (or access time). The reason for such a > file system is due to the fact that, files are created and most likely > accessed within the first 6 months or 1 year, and after that period, those > files have much less chance to be accessed and thus could be moved to a > slower and cheap pool. > > > > > > Does CephFS already support such a tiered feature? and if yes, how to > implement such feature with a pool of all SSD pool and a pool of EC-coded > HDD pool? > > > > > > Any suggestion, ideas, comments are highly appreciated, > > > > > > best regards, > > > > > > samuel > > > > > > > > > > > > huxiaoyu@xxxxxxxxxxxx > > > _______________________________________________ > > > ceph-users mailing list -- ceph-users@xxxxxxx > > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |