[Samba] Samba + RAID + High speed...

Volker Lendecke Volker.Lendecke at SerNet.DE
Thu Feb 5 08:58:50 GMT 2009

On Thu, Feb 05, 2009 at 09:34:22AM +0100, Agustin Eguia wrote:
> Hello everyone,
> I have some questions regarding RAID5 + XFS + Samba + High speed 
> network. I have configured a server with an Areca Controler (SATA) with 
> 10 x 1 TB HDs. The controle is configured with two RAID5, one of 5 TB 
> the other 3 TB. The machine also has 8Gb of ram, the OS runs on a SDD 
> drive (no mechanical parts), and has two dual quadcore Opterons.
> I formated the partitions with XFS to have the best speed. The two RAID 
> partitions are mounted over specific folders that are shared via Samba 
> to the network.
> Since a lot of data will be moved I created a bonding over 6 Intel Gbit 
> ports connected to the switch (the switch is also configured with the 
> proper LAG).
> I still "feel" this configuration could be running faster, anyone has 
> any idea where I could optimize it ? (the XFS format paramaters, Areca 
> setup, bonding parameters, etc).

One thing that really helps in specific workloads is to put
the XFS journal on a physical drive different from where the
data lives.

Apart from it, performance tuning is really something that
is very difficult to do remotely. Someone experienced must
log into your box.

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