[lustre-discuss] FIEMAP support for Lustre
Alexander I Kulyavtsev
aik at fnal.gov
Mon Aug 24 12:34:22 PDT 2015
you may take a look at
1.3. Lustre File System Storage and I/O
1.3.1. Lustre File System and Striping
Lustre Network Request Scheduler
These are actually server side. IIRC you are looking on client side.
Best regards, Alex.
On Aug 24, 2015, at 11:06 AM, Drokin, Oleg <oleg.drokin at intel.com> wrote:
> On Aug 24, 2015, at 11:57 AM, Wenji Wu wrote:
>> Hello, everybody,
>> I understand that ext2/3/4 support FIEMAP to get file extent mapping.
>> Does Lustre supports similar feature like FIEMAP? Can Lustre client gets FIEMAP-like information on a Luster file system?
> Yes, Lustre does support fiemap.
> You can see patched ext4progs and the filefrag included there works on top of Lustre too, as an example.
> lustre/tests/checkfiemap.c in the lustre source tree is another example user of this functionality that you can consult.
> lustre-discuss mailing list
> lustre-discuss at lists.lustre.org
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