Fabrice59

updated

6 years ago

F

Fabrice59

8 Posts

0

1223

April 2nd, 2021 01:00

Cluster hardlink limit ? 65k ?

Hi,

Is there really a limit of "number of hardlinks" we can create on a cluster ?

I ask the question because I've found in this document 

https://www.delltechnologies.com/en-us/collaterals/unauth/white-papers/products/storage/h16857-wp-onefs-best-practices.pdf  

that there is a limit of 65k in a ---"cluster"---. I find it a little be strange (and a very small limit), I was thinking that the limit is fixed by the inode struct "link count" type (per file) or the  - efs.ifm.max_links - one fs attribute.

However, I'm not able to find this limit of 65k in  https://www.delltechnologies.com/ja-jp/collaterals/unauth/technical-guides-support-information/products/storage/docu94152.pdf ) 

My onefs version is 8.2.2.0 and cluster type is H500.

Thank you

  • Peter_Sero

    6 Operator

    •

    1169 Posts

    1042

    0

    Posted April 2nd, 2021 11:00

    The latter document (Tech Specs) has a reference to KB 447064, which then states that 65k is the technical limit and maximum value for efs.ifm.max_links -- somewhat clumsy presentation indeed.  Default and best practice is 1000, in agreement with the former document (Best Practices).

    hth

    -- Peter

  • Peter Sero

    1 Rookie

    •

    9 Posts

    1051

    0

    Posted April 2nd, 2021 10:00

    -- removed by author (used wrong account) --

  • Fabrice59

    8 Posts

    902

    0

    Posted April 6th, 2021 23:00

    Thank you Peter !