[gpfsug-discuss] Analyse steps if disk are down after reboot
IBM Spectrum Scale
scale at us.ibm.com
Thu Jul 12 12:33:39 BST 2018
Just to follow up on the question about where to learn why a NSD is marked
down you should see a message in the GPFS log, /var/adm/ras/mmfs.log.*
Regards, The Spectrum Scale (GPFS) team
------------------------------------------------------------------------------------------------------------------
If you feel that your question can benefit other users of Spectrum Scale
(GPFS), then please post it to the public IBM developerWroks Forum at
https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479
.
If your query concerns a potential software error in Spectrum Scale (GPFS)
and you have an IBM software maintenance contract please contact
1-800-237-5511 in the United States or your local IBM Service Center in
other countries.
The forum is informally monitored as time permits and should not be used
for priority messages to the Spectrum Scale (GPFS) team.
From: "Grunenberg, Renar" <Renar.Grunenberg at huk-coburg.de>
To: 'gpfsug main discussion list' <gpfsug-discuss at spectrumscale.org>
Date: 07/12/2018 06:01 AM
Subject: Re: [gpfsug-discuss] Analyse steps if disk are down after
reboot
Sent by: gpfsug-discuss-bounces at spectrumscale.org
Hallo Achim, hallo Simon,
first thanks for your answers. I think Achims answers map these at best.
The nsd-servers (only 2) for these disk were mistakenly restart in a same
time window.
Renar Grunenberg
Abteilung Informatik – Betrieb
HUK-COBURG
Bahnhofsplatz
96444 Coburg
Telefon:
09561 96-44110
Telefax:
09561 96-44104
E-Mail:
Renar.Grunenberg at huk-coburg.de
Internet:
www.huk.de
HUK-COBURG Haftpflicht-Unterstützungs-Kasse kraftfahrender Beamter
Deutschlands a. G. in Coburg
Reg.-Gericht Coburg HRB 100; St.-Nr. 9212/101/00021
Sitz der Gesellschaft: Bahnhofsplatz, 96444 Coburg
Vorsitzender des Aufsichtsrats: Prof. Dr. Heinrich R. Schradin.
Vorstand: Klaus-Jürgen Heitmann (Sprecher), Stefan Gronbach, Dr. Hans Olav
Herøy, Dr. Jörg Rheinländer (stv.), Sarah Rössler, Daniel Thomas.
Diese Nachricht enthält vertrauliche und/oder rechtlich geschützte
Informationen.
Wenn Sie nicht der richtige Adressat sind oder diese Nachricht irrtümlich
erhalten haben,
informieren Sie bitte sofort den Absender und vernichten Sie diese
Nachricht.
Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Nachricht
ist nicht gestattet.
This information may contain confidential and/or privileged information.
If you are not the intended recipient (or have received this information
in error) please notify the
sender immediately and destroy this information.
Any unauthorized copying, disclosure or distribution of the material in
this information is strictly forbidden.
Von: gpfsug-discuss-bounces at spectrumscale.org [
mailto:gpfsug-discuss-bounces at spectrumscale.org] Im Auftrag von Achim
Rehor
Gesendet: Donnerstag, 12. Juli 2018 11:47
An: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Betreff: Re: [gpfsug-discuss] Analyse steps if disk are down after reboot
Hi Renar,
whenever an access to a NSD happens, there is a potential that the node
cannot access the disk, so if the (only) NSD server is down, there will be
no chance to access the disk, and the disk will be set down.
If you have twintailed disks, the 'second' (or possibly some more) NSD
server will be asked, switching to networked access, and in that case only
if that also fails, the disk will be set to down as well.
Not sure how your setup is, but if you reboot 2 NSD servers, and some
client possibly did IO to a file served by just these 2, then the 'down'
state would be explainable.
Rebooting of an NSD server should never set a disk to down, except, he was
the only one serving that NSD.
Mit freundlichen Grüßen / Kind regards
Achim Rehor
Software Technical Support Specialist AIX/ Emea HPC Support
IBM Certified Advanced Technical Expert - Power Systems with AIX
TSCC Software Service, Dept. 7922
Global Technology Services
Phone:
+49-7034-274-7862
IBM Deutschland
E-Mail:
Achim.Rehor at de.ibm.com
Am Weiher 24
65451 Kelsterbach
Germany
IBM Deutschland GmbH / Vorsitzender des Aufsichtsrats: Martin Jetter
Geschäftsführung: Martin Hartmann (Vorsitzender), Norbert Janzen, Stefan
Lutz, Nicole Reimer, Dr. Klaus Seifert, Wolfgang Wendt
Sitz der Gesellschaft: Ehningen / Registergericht: Amtsgericht Stuttgart,
HRB 14562 WEEE-Reg.-Nr. DE 99369940
From: "Grunenberg, Renar" <Renar.Grunenberg at huk-coburg.de>
To: "'gpfsug-discuss at spectrumscale.org'" <
gpfsug-discuss at spectrumscale.org>
Date: 12/07/2018 10:17
Subject: [gpfsug-discuss] Analyse steps if disk are down after
reboot
Sent by: gpfsug-discuss-bounces at spectrumscale.org
Hallo All,
we see after a reboot of two NSD-Servers some disks in different
filesystems are down and we don’t see why.
The logs (messages, dmesg, kern,..) are saying nothing. We are on Rhel7.4
and SS 5.0.1.1.
The question now, there are any log, structures in the gpfs deamon that
log these situation? What was the reason why the deamon hast no access to
the disks at that startup phase.
Any hints are appreciated.
Renar Grunenberg
Abteilung Informatik – Betrieb
HUK-COBURG
Bahnhofsplatz
96444 Coburg
Telefon:
09561 96-44110
Telefax:
09561 96-44104
E-Mail:
Renar.Grunenberg at huk-coburg.de
Internet:
www.huk.de
HUK-COBURG Haftpflicht-Unterstützungs-Kasse kraftfahrender Beamter
Deutschlands a. G. in Coburg
Reg.-Gericht Coburg HRB 100; St.-Nr. 9212/101/00021
Sitz der Gesellschaft: Bahnhofsplatz, 96444 Coburg
Vorsitzender des Aufsichtsrats: Prof. Dr. Heinrich R. Schradin.
Vorstand: Klaus-Jürgen Heitmann (Sprecher), Stefan Gronbach, Dr. Hans Olav
Herøy, Dr. Jörg Rheinländer (stv.), Sarah Rössler, Daniel Thomas.
Diese Nachricht enthält vertrauliche und/oder rechtlich geschützte
Informationen.
Wenn Sie nicht der richtige Adressat sind oder diese Nachricht irrtümlich
erhalten haben,
informieren Sie bitte sofort den Absender und vernichten Sie diese
Nachricht.
Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Nachricht
ist nicht gestattet.
This information may contain confidential and/or privileged information.
If you are not the intended recipient (or have received this information
in error) please notify the
sender immediately and destroy this information.
Any unauthorized copying, disclosure or distribution of the material in
this information is strictly forbidden.
_______________________________________________
gpfsug-discuss mailing list
gpfsug-discuss at spectrumscale.org
http://gpfsug.org/mailman/listinfo/gpfsug-discuss
_______________________________________________
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/20180712/066a63cc/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/gif
Size: 7182 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20180712/066a63cc/attachment.gif>
More information about the gpfsug-discuss
mailing list