[gpfsug-discuss] gpfsug-discuss Digest, Vol 75, Issue 27

atmane khiredine a.khiredine at meteo.dz
Tue Apr 17 21:48:54 BST 2018


thank you for the answer

I use lsscsi the disk is in place "Linux sees the disk"
i check the enclosure the disk is in use "I sees the disk :)"
and I check the disk the indicator of disk flashes green
and I connect to the NetApp DE6600 disk enclosure over telnet and the disk is in place "NetApp sees the disk" 
if i use this CMD
mmchpdisk BB1RGR --pdisk e2d3s11 --identify on
Location of pdisk e2d3s11 is not known
the only cmd that works is
mmchpdisk  --suspend OR --diagnose
e2d3s11               0,  0      DA2            2560 GiB  normal      missing/noPath/systemDrain/noRGD/noVCD/noData
is change from  missing to diagnosing
e2d3s11               0,  0      DA2            2560 GiB  normal      diagnosing/noPath/noVCD
and after one or 2 min is change from  diagnosing to missing
e2d3s11               0,  0      DA2            2582 GiB  replaceable missing/noPath/systemDrain/noRGD/noVCD
the disk is in place
the GNR/GSS/ESS can not see the disk
if I can find the file or GNR/GSS/ESS stores the disk location
I can add the path that is missing

Atmane Khiredine
HPC System Administrator | Office National de la Météorologie
Tél : +213 21 50 73 93 # 303 | Fax : +213 21 50 79 40 | E-mail : a.khiredine at meteo.dz

________________________________________
De : gpfsug-discuss-bounces at spectrumscale.org [gpfsug-discuss-bounces at spectrumscale.org] de la part de gpfsug-discuss-request at spectrumscale.org [gpfsug-discuss-request at spectrumscale.org]
Envoyé : mardi 17 avril 2018 19:24
À : gpfsug-discuss at spectrumscale.org
Objet : gpfsug-discuss Digest, Vol 75, Issue 27

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Today's Topics:

   1. Re: GNR/GSS/ESS pdisk location (valdis.kletnieks at vt.edu)
   2. Re: GNR/GSS/ESS pdisk location (Matthew Robinson)
   3. Only 20 spots left! - SSUG-US Spring meeting - May 16-17th,
      Cambridge, Ma (Oesterlin, Robert)


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Message: 1
Date: Tue, 17 Apr 2018 11:27:51 -0400
From: valdis.kletnieks at vt.edu
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] GNR/GSS/ESS pdisk location
Message-ID: <16306.1523978871 at turing-police.cc.vt.edu>
Content-Type: text/plain; charset="iso-8859-1"

On Tue, 17 Apr 2018 08:31:35 -0000, atmane khiredine said:

> but no location of pdisk

> state = "missing/noPath/systemDrain/noRGD/noVCD/noData"

That can't be good. That's just screaming "dead, uncabled, or removed".

> WWN = "naa.5000C50056717727"

Useful hint where to start if all else fails (see below)

> i know the location of the Hard disk from old mmlspdisk file
> mmchcarrier BB1RGR --release --pdisk "e2d3s11" --location "SV30708502-3-11"

So you know where it was previously, and you can't find it now because
it's either dead, missing, or there's no fiberchannel path to it.

> User response: Check the disk enclosure hardware.

Exactly as it says: Check the cabling, check the enclosure for a failed disk,
and check if there's now an empty spot where a co-worker "helpfully" removed a
bad disk.

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Message: 2
Date: Tue, 17 Apr 2018 14:03:57 -0400
From: Matthew Robinson <matthew.robinson02 at gmail.com>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] GNR/GSS/ESS pdisk location
Message-ID:
        <CADvPS3i3YKtrv=_M3pT4QBdzu8sahOXnZ2UhWpqsVMbHxekO4w at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hi Valdis,

Normally the name will indicate the physical location of the disk.

So the name of the disk you have listed is  "e2d3s11" this is Enclosure 2
Disk shelf 3 Disk slot 11.  However, based on the location = "" this is the
reason for the failure of the tscommand failure. Normally a recovery group
rebuild fixes the issue from what I have seen in the past.

On Tue, Apr 17, 2018 at 4:31 AM, atmane khiredine <a.khiredine at meteo.dz>
wrote:

> dear all,
>
> I want to understand how GNR/GSS/ESS stores information about the pdisk
> location
> I looked in the configuration file
>
> /var/mmfs/gen/mmfsNodeData
> /var/mmfs/gen/mmsdrfs
> /var/mmfs/gen/mmfs.cfg
>
> but no location of pdisk
>
> this is real scenario of unknown location
> this is the output from GNR/GSS/ESS
> -----------------------------------
> [root at ess1 ~]# mmlspdisk BB1RGR --not-ok
> pdisk:
> replacementPriority = 2.00
> name = "e2d3s11"
> device = ""
> recoveryGroup = "BB1RGR"
> declusteredArray = "DA2"
> state = "missing/noPath/systemDrain/noRGD/noVCD/noData"
> capacity  = 3000034656256
> freeSpace = 2997887172608
> location = ""
> WWN = "naa.5000C50056717727"
> server = "ess1-ib0"
> reads = 106800946
> writes = 10414075
> IOErrors = 1216
> IOTimeouts = 18
> mediaErrors = 0
> checksumErrors = 0
> pathErrors = 0
> relativePerformance = 1.000
> userLocation = ""
> userCondition = "replaceable"
> hardware = "   "
> hardwareType = Rotating 7200
> nPaths = 0 active 0 total
> nsdFormatVersion = Unknown
> paxosAreaOffset = Unknown
> paxosAreaSize = Unknown
> logicalBlockSize = 512
> -----------------------------------
> I begin change the Hard disk
> mmchcarrier BB1RGR --release --pdisk "e2d3s11"
> I have this error
> Location of pdisk e2d3s11 of recovery group BB1RGR is not known.
> i know the location of the Hard disk
> i know the location of the Hard disk from old mmlspdisk file
> mmchcarrier BB1RGR --release --pdisk "e2d3s11" --location "SV30708502-3-11"
>
> Location of pdisk e2d3s11 of recovery group BB1RGR is not known.
> I read in the official documentation
> 6027-3001 [E] Location of pdisk pdiskName of recovery
> group recoveryGroupName is not known.
> Explanation: IBM Spectrum Scale is unable to find the
> location of the given pdisk.
> User response: Check the disk enclosure hardware.
>
>
> Atmane Khiredine
> HPC System Administrator | Office National de la M?t?orologie
> T?l : +213 21 50 73 93 # 303 | Fax : +213 21 50 79 40 | E-mail :
> a.khiredine at meteo.dz
> _______________________________________________
> gpfsug-discuss mailing list
> gpfsug-discuss at spectrumscale.org
> http://gpfsug.org/mailman/listinfo/gpfsug-discuss
>



--
Matthew Robinson
Comptia A+, Net+
919.909.0494
matthew.robinson02 at gmail.com

The greatest discovery of my generation is that man can alter his life
simply by altering his attitude of mind. - William James, Harvard
Psychologist.
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Message: 3
Date: Tue, 17 Apr 2018 18:24:04 +0000
From: "Oesterlin, Robert" <Robert.Oesterlin at nuance.com>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: [gpfsug-discuss] Only 20 spots left! - SSUG-US Spring meeting
        - May 16-17th, Cambridge, Ma
Message-ID: <EFE16C8E-8CA9-4177-96FA-D129625B74F8 at nuance.com>
Content-Type: text/plain; charset="utf-8"

The registration for the Spring meeting of the SSUG-USA is now open. This is a Free two-day and will include a large number of Spectrum Scale updates and breakout tracks. We have limited meeting space so please register early if you plan on attending.

Registration and agenda details:

https://www.eventbrite.com/e/spectrum-scale-gpfs-user-group-us-spring-2018-meeting-tickets-43662759489

DATE AND TIME
Wed, May 16, 2018, 9:00 AM ?
Thu, May 17, 2018, 5:00 PM EDT

LOCATION
IBM Cambridge Innovation Center
One Rogers Street
Cambridge, MA 02142-1203


Bob Oesterlin
Sr Principal Storage Engineer, Nuance


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