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* [lustre-devel] Index operations
@ 2021-03-01 22:24 Sudheendra Sampath via lustre-devel
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From: Sudheendra Sampath via lustre-devel @ 2021-03-01 22:24 UTC (permalink / raw)
  To: lustre-devel; +Cc: lustre-discuss


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Hi,

I am trying to understand how index operation work in Lustre.   I have a 2
node setup.  One of them is a client and the other node is hosting both MDS
and OSS with ZFS as backend filesystem.

I put printk in osd_oi_probe() and I see that there are 128 object indexes
created for each of the MDT and OST.

Now, when I create a file or directory from the client I want to know how
the object index gets mapped to file FID.  How the FID -> dnode mapping
works in conjunction with index object.

Any input appreciated.

Thanks,

-Sudhe

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