[mythtv-users] EXT3 on Software RAID5 optimization

[Guillaume Laurès]

Hello,

Thanks for the tip but I tried it already. It sounds like XFS has now  
way to know about the file NFS is sending.

Regards,

GoM
Le 4 sept. 08 à 23:33, David Brodbeck a écrit :

> Guillaume Laurès wrote:
>> The problem lies with block allocation. Something with NFS prevent  
>> XFS
>> to do a good job and the file system gets awfully fragmented with  
>> only
>> a few tens of recordings. It's a known problem of XFS when using NFS,
>> and it seems not to have any solution.
>
> Have you tried adding something like 'allocsize=512m' to your mount
> options?  This tells XFS to preallocate 512 megabytes of space when
> writing to a file, instead of the default of 64 kilobytes.  I found it
> greatly reduced fragmentation on my Myth system, but I'm not using NFS
> heavily.
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