[lustre-discuss] help ldev.conf usage clarification

[Hans Henrik Happe]

Hi,

The third column should be the Lustre target names like:

MGS
<fs name>-MDT0000
<fs-name>-OST0000
<fs-name>-OST0001

Check 'man ldev.conf'.

Cheers,
Hans Henrik

On 13-09-2018 00:11, Riccardo Veraldi wrote:
> Hello,
> 
> I wanted to ask some clarifiaction on ldev.conf usage and features.
> 
> I am using ldev.conf only on my ZFS lustre OSSes and MDS.
> 
> Anyway I hae a doubt on what should go in that file.
> 
> I have seen people having only the metadata configuration in it like for
> example:
> 
> mds01 - mgs zfs:lustre01-mgs/mgs
> mds01 - mdt0 zfs:lustre01-mdt0/mdt0
> 
> and people filling hte file with both mgs settings and listing also all
> the OSSes/OSTs then spreading the same ldev.conf file over all the OSSes
> like in this example with
> 
> 3 OSSes where each one has one OST:
> 
> 
> mds01 - mgs zfs:lustre01-mgs/mgs
> mds01 - mdt0 zfs:lustre01-mdt0/mdt0
> #
> drp-tst-ffb01 - OST01 zfs:lustre01-ost01/ost01
> drp-tst-ffb02 - OST02 zfs:lustre01-ost02/ost02
> drp-tst-ffb03 - OST03 zfs:lustre01-ost03/ost03
> 
> is this correct or only the metadata information should stay in ldev.conf ?
> 
> Also can ldev.conf be used with ldiskfs based cluster ? On ldiskfs based
> clsuters I usually mount the metadata partition and OSS partitions in
> fstab and my ldev.conf is empty.
> 
> thanks
> 
> Rick
> 
> 
> 
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