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mubasicusr

updated

5 years ago

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1842

November 24th, 2021 06:00

isilon : exclusive lock file?

Migrated NetApp volume data to isilon(9.1).

When only executed ls command from Linux, got many "cannot access xxxxxxxxxxxx no such file or directory" result.

after 2~3 mins then responded ls file list result.

How to identify current behavior and root cause or any idea to trouble shooting?

NFSv3 client.

Thanks a lot!

  • DELL-Sam L

    Community Manager

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    Posted November 24th, 2021 15:00

    Hello mubasicusr,

    Which Isilon system do you have and what is your current onefs version?

  • 1560

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    Posted November 24th, 2021 17:00

    Hi Sam, thanks for your reply

    OneFS Version: 9.1.0.4

    We have F600, H500, and A2000 isilon system at environment.

    We defined access zone into from host to F600 and H500.

  • DELL-Josh Cr

    Community Manager

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    Posted November 26th, 2021 08:00

    Is it set to local locally or remote? When does it occur? After a reboot or every time a client makes a connection?

  • 1522

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    Posted November 26th, 2021 22:00

    Execute ls command by every linux host if it mounted the path.

    type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=6,sec=sys,mountaddr=xxxxxxxxx,mountvers=3,mountport=300,mountproto=tcp,local_lock=none,addr=xxxxxxxxxx)

    Anytime is occurring, even we reboot the Linux host, we still get this error.

    #time ls

    ls: cannot access xxxxxxxxxxxxxxxxxxxxxxxxx: No such file or directory

    ls: cannot access xxxxxxxxxxxxxxxxxxxxxxxxx: No such file or directory

    ls: cannot access xxxxxxxxxxxxxxxxxxxxxxxxx: No such file or directory

    real 2m29.831s
    user 0m0.047s
    sys 0m0.223s

    Thanks a lot! 

  • DELL-Sam L

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    Posted November 29th, 2021 08:00

    Hello mubasicusr,

    How did you migrate your files from your netapp to your Isilon? Did you use emcopy, robocopy or isi_vol_copy?

  • 1475

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    Posted November 29th, 2021 17:00

    Hi Sam,

    We are using Linux XCP to execute data copy.

    Thanks!

  • Peter_Sero

    6 Operator

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    Posted November 30th, 2021 02:00

    Those 2m30 or 150s look suspicious to me, like a network timeout at the TCP layer.

    You can check the network condition using the relevant sections from these troubleshootung guides:

    https://dl.dell.com/content/docu80766 

    https://dl.dell.com/content/docu60944 

    hth

    -- Peter

  • 1346

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    Posted December 5th, 2021 19:00

    Hi Peter,

    Thanks for your reply.

    But if it is a network timeout issue at TCP layer.

    I have 2 folders that is using data uploading, one of folder normal, but other is bad.

    I don't have idea for this different.

  • Peter_Sero

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    Posted December 7th, 2021 06:00

    Does it work locally on the Isilon cluster, from all nodes?

    If so, what happens on the Linus client when you create a full copy of the 'bad' folder?

    Have you run a cluster health check? - see https://www.dell.com/support/kbdoc/en-us/000130893/dell-emc-isilon-healthcheck-isilon-info-hub 

    (What has Dell support advised so far?)