Is multipathd running? Also make sure you don't have them blacklisted in your multipath.conf. On Apr 25, 2016 4:27 PM, "Jan Finnerman Load" <[email protected]> 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 > > > [image: 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] > > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > >
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