[lustre-discuss] OST not being used

Alastair Basden a.g.basden at durham.ac.uk
Wed Jun 23 07:46:11 PDT 2021

Hi Megan,

Thanks - yes, lctl ping responds.

In the end, we did a writeconf, and this seems to have fixed the problem, 
so probably some previous transient.  I would however have expected it to 
heal whilst online - taking the filesystem down and doing a writeconf 
seems a bit drastic!


On Wed, 23 Jun 2021, Ms. Megan Larko via lustre-discuss wrote:

> Hi!
> Does the NIC on the OSS that serves OST 4-7 respond to an lctl ping? 
> You indicated that it does respond to regular ping, ssh, etc.  I would 
> review my /etc/lnet.conf file for the behavior of a NIC that times out. 
> Does the conf allow for asymmetrical routing?  (Is that what you wish?) 
> Is there only one path to those OSTs or is there a way failover NIC 
> address that did not work in this even for some reason?
> The Lustre Operations Manual Section 9.1 on lnetctl command shows how you can get more info on the NIC ( lnetctl show...)
> Good luck.
> megan

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