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@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxx> 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
> >>>>
> >>>>
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