[gpfsug-discuss] Dell Multipath

Jeno Cram jenocram at gmail.com
Mon Apr 25 21:37:18 BST 2016


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" <jan.finnerman at load.se> 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
>
> jan.finnerman at load.se
>
> _______________________________________________
> gpfsug-discuss mailing list
> gpfsug-discuss at spectrumscale.org
> http://gpfsug.org/mailman/listinfo/gpfsug-discuss
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/c412ca6b/attachment-0002.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: F1EE9474-7BCC-41E6-8237-D949E9DC35D3[5].png
Type: image/png
Size: 5565 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/c412ca6b/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: CertPowerSystems_sm[1][5].png
Type: image/png
Size: 6664 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/c412ca6b/attachment-0007.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: E895055E-B11B-47C3-BA29-E12D29D394FA[5].png
Type: image/png
Size: 8584 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/c412ca6b/attachment-0008.png>


More information about the gpfsug-discuss mailing list