[gpfsug-discuss] Device mapper

[Bryan Banister]

Hi Nick,

You are correct.  You need to update the nsddevices file to look in /dev/mapper.

Cheers,
-Bryan

From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Nick Savva
Sent: Monday, April 09, 2018 5:51 PM
To: gpfsug-discuss at spectrumscale.org
Subject: [gpfsug-discuss] Device mapper

Note: External Email
________________________________
Hi all,

Apologies in advance if this has been covered already in discussions.

I'm building a new spectrum scale cluster and I am trying to get consistent device names across all nodes. I am attempting to use aliases in the multipath.conf which actually works and creates the /dev/mapper/<disk name> link.

I understand you can also copy the bindings file but I think aliases is probably easier to maintain.

However Spectrum scale will not accept the /dev/mapper device it only looks for dm-X devices that are in the /proc/partitions file. I know SONAS is pointing to Device mapper so there must be a way?

Im looking at the /var/mmfs/etc/nsddevices is it a case of editing this file to find the /dev/mapper device?

Appreciate the help in advance,

Nick







________________________________

Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you are hereby notified that any review, dissemination or copying of this email is strictly prohibited, and to please notify the sender immediately and destroy this email and any attachments. Email transmission cannot be guaranteed to be secure or error-free. The Company, therefore, does not make any guarantees as to the completeness or accuracy of this email or any attachments. This email is for informational purposes only and does not constitute a recommendation, offer, request or solicitation of any kind to buy, sell, subscribe, redeem or perform any type of transaction of a financial product.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20180410/8654da15/attachment-0002.htm>