[lustre-discuss] Multiple Lustre filesystem

[Colin Faber]

Hi,

It appears that In such a case you're still utilizing different targets for
your MDT(s) (on the same MDS), that said, I do not know what the
ramifications of running multiple MDT's for different file systems against
the same MDS would be as I have never attempted such a configuration.

-cf


On Fri, Sep 15, 2017 at 10:29 AM, Vicker, Darby (JSC-EG311) <
darby.vicker-1 at nasa.gov> wrote:

>
> From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf
> of Colin Faber <colin.faber at seagate.com>
> Date: Friday, September 15, 2017 at 9:48 AM
> To: Ravi Konila <ravibhatk at gmail.com>
> Cc: Lustre Discuss <lustre-discuss at lists.lustre.org>
> Subject: Re: [lustre-discuss] Multiple Lustre filesystem
>
> >> 3. With single MDT can I have multiple Lustre file system?
> >>
> > No
>
> I don't think that's right.  We are serving 2 separate file systems with
> the same MDT.  We are using 2.10 with a ZFS backend.  Our /etc/ldev.conf
> looks something like this:
>
> #local  foreign/-  label       [md|zfs:]device-path   [journal-path]/-
> [raidtab]
>
> # primary hpfs-fsl (aka /nobackup) lustre file system
> hpfs-fsl-mds0.jsc.nasa.gov  hpfs-fsl-mds1.jsc.nasa.gov  hpfs-fsl-MDT0000
> zfs:metadata/meta-fsl
>
> hpfs-fsl-oss00.jsc.nasa.gov hpfs-fsl-oss01.jsc.nasa.gov hpfs-fsl-OST0000
> zfs:oss00-0/ost-fsl
> hpfs-fsl-oss01.jsc.nasa.gov hpfs-fsl-oss00.jsc.nasa.gov hpfs-fsl-OST0001
> zfs:oss01-0/ost-fsl
> <cut>
>
> # primary eadc (aka /eadc_lustre) lustre file system
> hpfs-fsl-mds0.jsc.nasa.gov  hpfs-fsl-mds1.jsc.nasa.gov  eadc-MDT0000
> zfs:metadata/meta-eadc
>
> hpfs-fsl-oss00.jsc.nasa.gov hpfs-fsl-oss01.jsc.nasa.gov eadc-OST0000
> zfs:oss00-0/ost-eadc
> hpfs-fsl-oss01.jsc.nasa.gov hpfs-fsl-oss00.jsc.nasa.gov eadc-OST0001
> zfs:oss01-0/ost-eadc
> <cut>
>
>
>
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