[lustre-discuss] Multiple Lustre filesystem

[Vicker, Darby (JSC-EG311)]

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>