Date: Sun, 16 May 2004 15:01:54 +0300 From: Rumen Telbizov <altares@e-card.bg> To: Bj?rn K?nig <bjoern.koenig@alpha-tierchen.de> Cc: stable@freebsd.org Subject: Re: SATA on FreeBSD-4.x Message-ID: <20040516120154.GF454@e-card.bg> In-Reply-To: <20040515192939.5CC4C8E8DF1@skal.local> References: <20040515190056.F049916A4CF@hub.freebsd.org> <20040515192939.5CC4C8E8DF1@skal.local>
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On Sat, May 15, 2004 at 09:30:09PM +0200, Bj?rn K?nig wrote: > > > Dan Strick wrote: > > > > It is good that there seems to be a PCI SATA card > > that seems to work well in FreeBSD-stable. > > I use also a HighPoint SATA controller (HPT372) with FreeBSD 4.9. There were > some issues, but now after patching kernel sources it works fine. > > > Do you by any > > chance know if the RAID mirroring function is implemented > > in the controller or in the driver? > > Probably software implemented. Highpoint is for the very low-end market. You > should also know that the 37x are native ATA/133 chips. SATA functionality > is covered and provided by Marvell bridge chips; one for each channel. > That's the reason why SATA hardware works with non-SATA drivers. I am not a RAID expert, but here are just a few thoughts: 1. My chipset is hpt374 not 372! 2. Is it acctually possible to BUILD/CONFIGURE/ETC RAID arrays in the card's BIOS if the RAID is software implemented in the driver? I do this while the computer is booting by entering the card's setup thus not using the OS at all! 3. I believe that if the RAID was software I'd notice that big file transfers would have taken more cpu time. My tests showed insignificant cpu load when copying large files! Anyway I still may be wrong :) The fact is that I like this card. It has a reasonable price and so far it is rock solid under FreeBSD 4.x. Rumen Telbizov
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