[gpfsug-discuss] Dell Multipath

[Matt Weil]

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
>
> jan.finnerman at load.se <mailto:jan.finnerman at load.se>
>
>
>
> _______________________________________________
> gpfsug-discuss mailing list
> gpfsug-discuss at spectrumscale.org
> http://gpfsug.org/mailman/listinfo/gpfsug-discuss



____
This email message is a private communication. The information transmitted, including attachments, is intended only for the person or entity to which it is addressed and may contain confidential, privileged, and/or proprietary material. Any review, duplication, retransmission, distribution, or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is unauthorized by the sender and is prohibited. If you have received this message in error, please contact the sender immediately by return email and delete the original message from all computer systems. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/db9bf0fa/attachment-0002.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 8584 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/db9bf0fa/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 5565 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/db9bf0fa/attachment-0007.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 6664 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160425/db9bf0fa/attachment-0008.png>