[CentOS] File size diff on local disk vs NFS share

Ljubomir Ljubojevic office at plnet.rs
Thu May 3 19:53:02 UTC 2012


On 05/03/2012 09:16 PM, aurfalien wrote:
>
> On May 3, 2012, at 3:04 PM, Glenn Cooper wrote:
>
>>>>> I never really paid attention to this but a file on an NFS mount is
>>>>> showing 64M in size, but when copying the file to a local drive, it
>>>>> shows 2.5MB in size.
>>>>>
>>>>> My NFS server is hardware Raided with a volume stripe size of 128K
>>>>> were the volume size is 20TB, my local disk is about 500GB.
>>>>>
>>>>> Is this due to my stripe size?
>>>>>
>>>>> Nuggets are appreciated.
>>
>>> By the way, this is only across NFS as when ssh'd into the server, the file size shows 2.5M, same as the clients when its local so its seems NFS is the culprit.
>>>
>>> I have r/wsize tweaked but thats it.
>>
>> Wild guess - cached file attributes not getting updated properly in the NFS client?  Has the actual file size changed recently, like in the last few hours or days?
>>
>> Cheers,
>> Glenn
>
> Something more relevant perhaps, mount options via FSTAB on the server are;
>
> /dev/###		/mountpoint       xfs     defaults,allocsize=64m,relatime,logbufs=8,logbsize=256k		0 0
>
> Notice the allocsize of 64MB, perhaps relatime might be playing a role as well?
>
> I will remove allocsize first and report back.
>
> - aurf

Is it possible that you have 2 files with (almost) the same name? Check 
the inode of the file? And maybe copy it to subfolder?



-- 

Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

Google is the Mother, Google is the Father, and traceroute is your
trusty Spiderman...
StarOS, Mikrotik and CentOS/RHEL/Linux consultant



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