[CentOS] OT:Which filesystem to use with large files

carlopmart carlopmart at gmail.com
Wed Dec 23 17:01:11 UTC 2009


Kwan Lowe wrote:
> On Wed, Dec 23, 2009 at 10:47 AM, carlopmart <carlopmart at gmail.com> wrote:
>> Hi all,
>>
>>  Recently I have installed a centOS 5.4 server to use as a home NAS server. I need
>> to use large files (8GB minimum) inside of it to serve via iSCSI services. Which
>> filesystem do you recommends me to reach maximum performance: xfs, ext3, ext4, gfs2
>> ....??
> 
> I don't know if this is still true, but when I last checked a couple
> years ago, the recommendation was for LVM device backed iSCSI targets.
> 
> http://osdir.com/ml/linux.iscsi.tgt.devel/2008-09/msg00000.html
> 
> With LVMs you'd of course lose the flexibility of file-backed targets
> and the ability to do sparse files are you're intending..
> 
> dd if=/dev/zero of=iqn.2009-12.com.mydomain:storage.disk01.foo.foo
> bs=1 count=0 seek=16G

LVM was my first option and performance it is very very good with iSCSI, but backup 
and restore it is a problem with LVM. For these reason I need to use large files on 
this server...


-- 
CL Martinez
carlopmart {at} gmail {d0t} com


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