[Solid_software] /work/halla/solid move finished

Ole Hansen ole at jlab.org
Fri Apr 6 10:15:57 EDT 2018


Yes, that effect is well known. Lustre is inefficient when storing small files, which can lead to a large waste of space. It's one reason why /work had to move to a file system that doesn't have this problem.

Ole

> Am 06.04.2018 um 07:35 schrieb Zhiwen Zhao <zwzhao at jlab.org>:
> 
> Hi, Ole and All
> 
> It seems lustre tends to report mucher larger size of dir with many small files
> But the actual transfer is ok
> 
> An example is here
> ===========================================================
> du -hs /work/halla/solid/zwzhao/*
> 28G     apps
> 54G     BH
> 2.0G    clas12_fastmc
> 2.5K    ec
> 17G     halld
> 2.5K    hgc
> 1.1G    JPsi
> 54M     polhe3
> 3.4G    PVRES
> 202G    solid
> 65G     TCS
> 17G     twopion
> 365M    workbook
> 
> du -hs /lustre/expphy/work/halla/solid_old/zwzhao/*
> 97G     apps
> 54G     BH
> 2.5G    clas12_fastmc
> 17K     ec
> 17G     halld
> 17K     hgc
> 1.1G    JPsi
> 325M    polhe3
> 3.9G    PVRES
> 207G    solid
> 65G     TCS
> 17G     twopion
> 524M    workbook
> ===========================================================
> 
> Zhiwen
> 
>> On 4/4/2018 11:08 AM, Ole Hansen wrote:
>> Hello folks,
>> FYI, the /work/halla/solid disk area has been moved to the new file
>> server and can be used for production again.
>> Please verify that your files are up to date. If anything seems to be
>> missing, please check the old work area on Lustre, which has been
>> renamed to /lustre/expphy/work/halla/solid_old.
>> Let me know if there are any issues.
>> Regards,
>> Ole
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