[lustre-discuss] FIEMAP support for Lustre
Patrick Farrell
paf at cray.com
Mon Aug 24 10:34:01 PDT 2015
Wenji,
You should definitely read up on the ticket linked by Frank Zago - It highlights a notable bug in Lustre's fiemap implementation. Whether or not that affects your intended use, you'll have to decide.
- Patrick
________________________________________
From: lustre-discuss [lustre-discuss-bounces at lists.lustre.org] on behalf of Wenji Wu [wenji at fnal.gov]
Sent: Monday, August 24, 2015 12:32 PM
To: Drokin, Oleg
Cc: lustre-discuss at lists.lustre.org
Subject: Re: [lustre-discuss] FIEMAP support for Lustre
Oleg,
Thanks a lot.
Which version of Luster should I take a look?
Thanks
wenji
On 8/24/15, 11:06 AM, "Drokin, Oleg" <oleg.drokin at intel.com> wrote:
>Hello!
>
>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.
>
>Bye,
> Oleg
_______________________________________________
lustre-discuss mailing list
lustre-discuss at lists.lustre.org
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
More information about the lustre-discuss
mailing list