----- Original Message ----- From: "Bharath Ramesh" <[EMAIL PROTECTED]> To: "Erik Mouw" <[EMAIL PROTECTED]> Cc: "Lennart Sorensen" <[EMAIL PROTECTED]>; "Jerome Warnier" <[EMAIL PROTECTED]>; "debian-amd64" <debian-amd64@lists.debian.org> Sent: Wednesday, July 27, 2005 1:31 AM Subject: Re: RAID controllers
> * Erik Mouw ([EMAIL PROTECTED]) wrote: > > On Tue, Jul 26, 2005 at 11:37:25AM -0400, Lennart Sorensen wrote: > > > On Tue, Jul 26, 2005 at 05:23:05PM +0200, Jerome Warnier wrote: > > > > Anybody here has an experience with Sil3114 or Areca RAID SATA > > > > controllers? > > > > > > > > I'm wondering which one is best on AMD64, or if I stick with a 3Ware > > > > Escalade 8600 instead. > > > > > > > > I'm planning to use Debian Sarge, of course. > > > > > > I haven't used any of them, but from what I have read, the 3ware drivers > > > are very mature and have been around for a while. The Areca drivers I > > > suspect you have to compile and install yourself (making installing > > > somewhat more difficult on one). > > > > The -mm kernels come with Areca drivers. they are at at least included > > in 2.6.13-rc3-mm1. Andrew Morton keeps a set of broken out patches, so > > you can also patch other kernels: > > > > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.13-rc3/2.6.13-rc3-mm1/broken-out/ > > > > I think you need areca-raid-linux-scsi-driver.patch and > > areca-raid-linux-scsi-driver-fix.patch (in that order). > > > > > The few benchmarks I have seen indicate the 3ware is easily the > > > fastest of them. > > > > The benchmarks in the respected german computer magazine c't suggests > > the Areca cards are faster. > > Areca according to the benchmarks is definitely a better card. I don't > remember when I read but I did review of a bunch of RAID controllers > done under Linux. Depending on you need you would need to decide if you > want to use a host based or an intelligent RAID controller. I would > personally go with the intelligent RAID controller. The advantage of > using Areca is that they have native SATA support unlike 3ware or > adaptec which have their proprietary crap which is still light years > behind. You don't get the bang for the money. But if you want tried and > tested RAID controller I would go with the 3ware/adaptec. If you are > going towards a host based controller I would suggest looking at the > Raid Core BC 4852 controller. Its supposed to be really good, not sure > about the linux support. > > Bharath > > --- > Bharath Ramesh <[EMAIL PROTECTED]> > http://csgrad.cs.vt.edu/~bramesh > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > A few weeks ago, I have been done some benchmark with areca and 3ware9500. I used my own benchmark program which issue sequeuntil read and write request. Result ::: 1 ~ 10 client : roughly areca is better than 3ware about 15%. 10 ~20 client : almost same. 20 ~ client : 3ware performance is stable, but areca is not draw stable performance graph. I think that areca raid driver is not matured Test Environment ::: kernel 2.4.27 stock 2.6.12 stock filesystem xfs network protocol : NFS nfs client : 2.4.21 architeture : Intel xeon 2.4GHz memory : 2G