Re: SATA Raid Controller

[Jukka Marin <jmarin%embedtronics.fi@localhost>]

On Wed, Jun 04, 2008 at 12:20:52PM +0200, Manuel Bouyer wrote:
> > I had a 3ware for a while, but was disappointed in the RAID5 performance.
> > I talked to the 3ware tech support and while they were trying to help,
> > the problem was never solved.
> 
> For read or write ? writes without the battery-backed cache are slow,
> but that expected.

I had the battery backup, but still writes were "slow", especially extracting
pkgsrc.tar.gz (according to systat, the effective speed dropped to well below
1 MB/s).  With Areca, I'm getting better write speed under Xen/domU than with
3ware without Xen.

> But I suspect all this is hightly hardware-dependant, especially
> chipset-dependant. Tests not run on the same motherboard with the
> same settings don't mean much ...

I was using the same motherboard with 3ware and Areca.

  -jm