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June 17th, 2013 01:00

df shows usage while quota shows 0

Hi Guys,

wonder if someone ever encountered an issue with df reporting usage while tree quota shows usage is 0.

example :

Filesystem    Type    Size  Used Avail Use% Mounted on

infs370b:/vol17/valery

               nfs    1.5T  160G  1.3T  11% /nfs/iil/valery

the tree is #5 :

nas_quotas -tree -report -fs vol17

Report for tree quotas on filesystem vol17 mounted on /vol17

+------------+---------------------------------+-------------------------------+

| Tree       |        Bytes Used  (1K)         |            Files              |

+------------+--------+-------+-------+--------+--------+------+------+--------+

|            |   Used |  Soft |  Hard |Timeleft|   Used | Soft | Hard |Timeleft|

+------------+--------+-------+-------+--------+--------+------+------+--------+

|#1          |  256714|      0|52428800|        |      39|     0|     0|        |

|#2          |781729495|      0|943718400|        |  189654|     0|     0|        |

|#3          |172364704|      0|298844160|        | 3472307|     0|     0|        |

|#4          |       0|      0|5242880|        |       1|     0|     0|        |

|#5          |       0|      0|1562378240|        |       1|     0|     0|        |

there are no files under that directory :

root# du -a /nfs/iil/valery

0       /nfs/iil/valery

any idea why df reports 160GB is used ?

4 Operator

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8.6K Posts

June 17th, 2013 03:00

What does server_df say for the complete file system ?

4 Operator

 • 

8.6K Posts

June 17th, 2013 03:00

You are saying the treequota directory is completely empty – right ?

Then the nas_quotas output would be correct

In terms of what df reports on an NFS client take a look at the Quotas manual – specifically the section mentioning the param quota useQuotasInFsStat

4 Posts

June 17th, 2013 03:00

yes there are no files under that directory tree. by default we are showing in df the tree quota and not the entire FS.

for other directories i have no issue (under the same FS)

4 Posts

June 17th, 2013 03:00

[nasadmin@infs370cs ~]$ server_df infs370b vol17

infs370b :

Filesystem          kbytes         used        avail capacity Mounted on

vol17           3029696800   1635169928   1394526872   54%    /vol17

[nasadmin@infs370cs ~]$

full list of directories :

[nasadmin@infs370cs ~]$ nas_quotas -r -t -fs vol17 

Report for tree quotas on filesystem vol17 mounted on /vol17

+------------+---------------------------------+-------------------------------+

| Tree       |        Bytes Used  (1K)         |            Files              |

+------------+--------+-------+-------+--------+--------+------+------+--------+

|            |   Used |  Soft |  Hard |Timeleft|   Used | Soft | Hard |Timeleft|

+------------+--------+-------+-------+--------+--------+------+------+--------+

|#1          |  256714|      0|52428800|        |      39|     0|     0|        |

|#2          |781729495|      0|943718400|        |  189654|     0|     0|        |

|#3          |172364704|      0|298844160|        | 3472307|     0|     0|        |

|#4          |       0|      0|5242880|        |       1|     0|     0|        |

|#5          |       0|      0|1562378240|        |       1|     0|     0|        |

|#6          |119046692|      0|141557760|        | 2211364|     0|     0|        |

|#7          |218627242|      0|262144000|        | 1915343|     0|     0|        |

|#9          |277835354|      0|314572800|        | 1350963|     0|     0|        |

|#10         |17169269|      0|25165824|        |    1963|     0|     0|        |

+------------+--------+-------+-------+--------+--------+------+------+--------+

4 Operator

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8.6K Posts

June 17th, 2013 05:00

Are you sure there are no hidden files there ?

You could try a quota recalc if that changes anything

Otherwise I would suggest to open a service request

4 Posts

June 17th, 2013 06:00

yep its empty ... i cant use recalc as i understood its going to have performance impact.

indeed looks like a bug

4 Operator

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8.6K Posts

June 17th, 2013 06:00

Might be a client side issue or config as well

Cant say without looking at the network traces

4 Operator

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8.6K Posts

June 17th, 2013 07:00

I dont think the performance impact for recalc is that big – of course it depends on your number of files and quotas

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