ZFS also does some fun things here if you want to build an SSD & spinning disk array - http://zfsonlinux.org/ On 11 January 2017 at 11:56, J Martin Rushton < martinrushton56 at btinternet.com> wrote: > Hmm, don't you just love changing terminology! I've been using HSM > systems at work since '99. BTW, DMAPI is the Data Management API which > was a common(ish) extension used by amongst others SGI and IBM. > > Back to lvmcache. It looks interesting. I'd earlier dismissed LVM > since it is block orientated, not file orientated. Probably because my > mental image is of files migrating to tapes in a silo. > > On 11/01/17 10:23, Andrew Holway wrote: > > HSM also stands for "Hardware security module" > > > > Maybe lvmcache would be interesting for you? HSM is more popularly known > as > > "tiering". > > > > Cheers, > > > > Andrew > > > > On 11 January 2017 at 11:15, J Martin Rushton < > > martinrushton56 at btinternet.com> wrote: > > > >> I think there may be some confusion here. By HSM I was referring to > >> Hierarchical Storage Management, whereby there are multiple levels of > >> storage (fast+expensive <-> slow+cheap) and files migrate up or down. > >> Originally it was used to keep data on tape with the metadata residing > >> on disk though it has been expanded to allow a SAS/SATA hierarchy. Quite > >> where PKI comes in I'm not sure, unless you are implementing it over an > >> external network. > >> > >> On 11/01/17 10:06, Andrew Holway wrote: > >>> Dogtag? http://pki.fedoraproject.org/wiki/PKI_Main_Page > >>> > >>> On 11 January 2017 at 10:30, J Martin Rushton < > >>> martinrushton56 at btinternet.com> wrote: > >>> > >>>> Purely from interest, is there any current FOSS implementation of HSM? > >>>> I note that XFS has dropped support for DMAPI, have other filesystems? > >>>> > >>>> Regards, > >>>> Martin > >>>> > >>>> > >>>> _______________________________________________ > >>>> CentOS mailing list > >>>> CentOS at centos.org > >>>> https://lists.centos.org/mailman/listinfo/centos > >>>> > >>>> > >>> _______________________________________________ > >>> CentOS mailing list > >>> CentOS at centos.org > >>> https://lists.centos.org/mailman/listinfo/centos > >>> > >> > >> > >> _______________________________________________ > >> CentOS mailing list > >> CentOS at centos.org > >> https://lists.centos.org/mailman/listinfo/centos > >> > >> > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > https://lists.centos.org/mailman/listinfo/centos > > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > >