enable
mpathconf --enable --with_multipathd y
show config
multipathd show config
On 4/25/16 3:27 PM, Jan Finnerman Load wrote:
> Hi,
>
> I realize this might not be strictly GPFS related but I’m getting a
> little desperate here…
> I’m doing an implementation of GPFS/Spectrum Scale 4.2 at a customer
> and struggle on a question of disk multipathing for the intended NSD
> disks with their direct attached SAS disk systems.
> If I do a /*multipath –ll*/, after a few seconds I just get the
> prompt back. I expected to see the usual big amount of path info, but
> nothing there.
>
> If I do a /*multipathd –k*/ and then a show config, I see all the Dell
> disk luns with reasonably right parameters. I can see them as
> /dev/sdf, /dev/sdg, etc. devices.
> I can also add them in PowerKVM:s Kimchi web interface and even deploy
> a GPFS installation on it. The big question is, though, how do I get
> multipathing to work ?
> Do I need any special driver or setting in the multipath.conf file ?
> I found some of that but more generic e.g. for RedHat 6, but now we
> are in PowerKVM country.
>
> The platform consists of:
> 4x IBM S812L servers
> SAS controller
> PowerKVM 3.1
> Red Hat 7.1
> 2x Dell MD3460 *SAS* disk systems
> No switches
>
> Jan
>
> ///Jan
>
>
> Jan Finnerman
>
> Senior Technical consultant
>
>
> CertTiv_sm
>
>
> Kista Science Tower
>
> 164 51 Kista
>
> Mobil: +46 (0)70 631 66 26
>
> Kontor: +46 (0)8 633 66 00/26
>
> [email protected] <mailto:[email protected]>
>
>
>
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