[gpfsug-discuss] LROC

[Matt Weil]

On 12/29/16 10:09 AM, Sven Oehme wrote:
> i agree that is a very long name , given this is a nvme device it
> should show up as /dev/nvmeXYZ
> i suggest to report exactly that in nsddevices and retry.
> i vaguely remember we have some fixed length device name limitation ,
> but i don't remember what the length is, so this would be my first
> guess too that the long name is causing trouble.
I will try that.  I was attempting to not need to write a custom udev
rule for those. Also to keep the names persistent.  Rhel 7 has a default
rule that makes a sym link in /dev/disk/by-id.
0 lrwxrwxrwx 1 root root  13 Dec 29 10:08
nvme-Dell_Express_Flash_NVMe_SM1715_1.6TB_SFF_______S29GNYAH200016 ->
../../nvme0n1
0 lrwxrwxrwx 1 root root  13 Dec 27 11:20
nvme-Dell_Express_Flash_NVMe_SM1715_1.6TB_SFF_______S29GNYAH300161 ->
../../nvme1n1
>
>
> On Thu, Dec 29, 2016 at 5:02 PM Aaron Knister
> <aaron.s.knister at nasa.gov <mailto:aaron.s.knister at nasa.gov>> wrote:
>
>     Interesting. Thanks Matt. I admit I'm somewhat grasping at straws
>     here.
>
>     That's a *really* long device path (and nested too), I wonder if
>     that's
>     causing issues.
>
>     What does a "tspreparedisk -S" show on that node?
>
>     Also, what does your nsddevices script look like? I'm wondering if you
>     could have it give back "/dev/dm-XXX" paths instead of
>     "/dev/disk/by-id"
>     paths if that would help things here.
>
>     -Aaron
>
>     On 12/29/16 10:57 AM, Matt Weil wrote:
>     >
>     >
>     >>  ro_cache_S29GNYAH200016 0A6403AA586531E1
>     >>
>     /dev/disk/by-id/nvme-Dell_Express_Flash_NVMe_SM1715_1.6TB_SFF_______S29GNYAH200016
>     >> dmm      ces1.gsc.wustl.edu <http://ces1.gsc.wustl.edu>     
>      server node
>     >
>     >
>     > On 12/28/16 5:19 PM, Aaron Knister wrote:
>     >> mmlssnsd -X | grep 0A6403AA58641546
>     >
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>     --
>     Aaron Knister
>     NASA Center for Climate Simulation (Code 606.2)
>     Goddard Space Flight Center
>     (301) 286-2776 <tel:%28301%29%20286-2776>
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