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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!

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6.9K Posts

November 24th, 2021 15:00

Hello mubasicusr,

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

5 Posts

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.

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8.5K Posts

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?

5 Posts

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! 

Moderator

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6.9K Posts

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?

5 Posts

November 29th, 2021 17:00

Hi Sam,

We are using Linux XCP to execute data copy.

Thanks!

1.2K Posts

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

5 Posts

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.

1.2K Posts

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?)

 

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